From 0852760852f994ca263e6957cc08529b430f6284 Mon Sep 17 00:00:00 2001
From: Haixing Hu <starfish.hu@gmail.com>
Date: Thu, 20 Feb 2025 15:34:19 +0800
Subject: [PATCH] =?UTF-8?q?init:=20=E5=88=9D=E5=A7=8B=E5=8C=96=E9=A1=B9?=
 =?UTF-8?q?=E7=9B=AE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/pom.xml                               | 161 +++++++++++++++++
 .../controller/GlobalExceptionHandler.java    |  78 +++++++++
 .../survey/controller/QuestionController.java |  61 +++++++
 .../survey/controller/SurveyController.java   |  56 ++++++
 .../survey/controller/UserController.java     |  53 ++++++
 .../java/ltd/qubit/survey/dao/BaseDao.java    |  51 ++++++
 .../java/ltd/qubit/survey/dao/OptionDao.java  |  43 +++++
 .../ltd/qubit/survey/dao/QuestionDao.java     |  41 +++++
 .../qubit/survey/dao/SurveyResponseDao.java   |  51 ++++++
 .../java/ltd/qubit/survey/dao/UserDao.java    |  27 +++
 .../ltd/qubit/survey/model/ErrorInfo.java     |  65 +++++++
 .../java/ltd/qubit/survey/model/Option.java   |  40 +++++
 .../ltd/qubit/survey/model/PositionType.java  |  36 ++++
 .../java/ltd/qubit/survey/model/Question.java |  50 ++++++
 .../ltd/qubit/survey/model/QuestionType.java  |  21 +++
 .../qubit/survey/model/SurveyResponse.java    |  41 +++++
 .../java/ltd/qubit/survey/model/User.java     |  40 +++++
 .../java/ltd/qubit/survey/model/WorkArea.java |  51 ++++++
 .../ltd/qubit/survey/service/BaseService.java |  55 ++++++
 .../qubit/survey/service/OptionService.java   |  42 +++++
 .../qubit/survey/service/QuestionService.java |  54 ++++++
 .../survey/service/SurveyResponseService.java |  64 +++++++
 .../ltd/qubit/survey/service/UserService.java |  46 +++++
 .../service/impl/OptionServiceImpl.java       |  73 ++++++++
 .../service/impl/QuestionServiceImpl.java     | 128 ++++++++++++++
 .../impl/SurveyResponseServiceImpl.java       | 111 ++++++++++++
 .../survey/service/impl/UserServiceImpl.java  |  72 ++++++++
 .../src/main/resources/application.properties |  18 ++
 .../resources/mybatis/mapper/OptionMapper.xml |  83 +++++++++
 .../mybatis/mapper/QuestionMapper.xml         |  86 +++++++++
 .../mybatis/mapper/SurveyResponseMapper.xml   |  93 ++++++++++
 .../resources/mybatis/mapper/UserMapper.xml   |  68 ++++++++
 .../main/resources/mybatis/mybatis-config.xml |  32 ++++
 .../resources/spring/applicationContext.xml   |  24 +++
 .../src/main/resources/spring/spring-mvc.xml  |  46 +++++
 .../main/resources/spring/spring-mybatis.xml  |  39 +++++
 backend/src/main/webapp/WEB-INF/web.xml       |  57 ++++++
 backend/target/classes/application.properties |  18 ++
 .../controller/GlobalExceptionHandler.class   | Bin 0 -> 5690 bytes
 .../controller/QuestionController.class       | Bin 0 -> 3157 bytes
 .../survey/controller/SurveyController.class  | Bin 0 -> 2039 bytes
 .../survey/controller/UserController.class    | Bin 0 -> 2553 bytes
 .../ltd/qubit/survey/dao/BaseDao.class        | Bin 0 -> 496 bytes
 .../ltd/qubit/survey/dao/OptionDao.class      | Bin 0 -> 769 bytes
 .../ltd/qubit/survey/dao/QuestionDao.class    | Bin 0 -> 791 bytes
 .../qubit/survey/dao/SurveyResponseDao.class  | Bin 0 -> 842 bytes
 .../ltd/qubit/survey/dao/UserDao.class        | Bin 0 -> 589 bytes
 .../ltd/qubit/survey/model/ErrorInfo.class    | Bin 0 -> 3832 bytes
 .../ltd/qubit/survey/model/Option.class       | Bin 0 -> 4217 bytes
 .../ltd/qubit/survey/model/PositionType.class | Bin 0 -> 1558 bytes
 .../ltd/qubit/survey/model/Question.class     | Bin 0 -> 5546 bytes
 .../ltd/qubit/survey/model/QuestionType.class | Bin 0 -> 1203 bytes
 .../qubit/survey/model/SurveyResponse.class   | Bin 0 -> 4455 bytes
 .../classes/ltd/qubit/survey/model/User.class | Bin 0 -> 4313 bytes
 .../ltd/qubit/survey/model/WorkArea.class     | Bin 0 -> 1725 bytes
 .../qubit/survey/service/BaseService.class    | Bin 0 -> 705 bytes
 .../qubit/survey/service/OptionService.class  | Bin 0 -> 860 bytes
 .../survey/service/QuestionService.class      | Bin 0 -> 1270 bytes
 .../service/SurveyResponseService.class       | Bin 0 -> 1316 bytes
 .../qubit/survey/service/UserService.class    | Bin 0 -> 885 bytes
 .../service/impl/OptionServiceImpl.class      | Bin 0 -> 4157 bytes
 .../service/impl/QuestionServiceImpl$1.class  | Bin 0 -> 916 bytes
 .../service/impl/QuestionServiceImpl.class    | Bin 0 -> 6790 bytes
 .../impl/SurveyResponseServiceImpl.class      | Bin 0 -> 6808 bytes
 .../survey/service/impl/UserServiceImpl.class | Bin 0 -> 3187 bytes
 .../classes/mybatis/mapper/OptionMapper.xml   |  83 +++++++++
 .../classes/mybatis/mapper/QuestionMapper.xml |  86 +++++++++
 .../mybatis/mapper/SurveyResponseMapper.xml   |  93 ++++++++++
 .../classes/mybatis/mapper/UserMapper.xml     |  68 ++++++++
 .../target/classes/mybatis/mybatis-config.xml |  32 ++++
 .../classes/spring/applicationContext.xml     |  24 +++
 backend/target/classes/spring/spring-mvc.xml  |  46 +++++
 .../target/classes/spring/spring-mybatis.xml  |  39 +++++
 .../compile/default-compile/createdFiles.lst  |  27 +++
 .../compile/default-compile/inputFiles.lst    |  26 +++
 database/init_database.sh                     |  30 ++++
 database/init_database.sql                    |  73 ++++++++
 doc/api.md                                    | 163 ++++++++++++++++++
 doc/requirements.md                           |  62 +++++++
 doc/大模型应用需求调研问卷.md                 | 156 +++++++++++++++++
 pom.xml                                       | 161 +++++++++++++++++
 .../controller/GlobalExceptionHandler.java    |  78 +++++++++
 .../survey/controller/QuestionController.java |  62 +++++++
 .../survey/controller/SurveyController.java   |  58 +++++++
 .../survey/controller/UserController.java     |  55 ++++++
 .../java/ltd/qubit/survey/dao/BaseDao.java    |  51 ++++++
 .../java/ltd/qubit/survey/dao/OptionDao.java  |  43 +++++
 .../ltd/qubit/survey/dao/QuestionDao.java     |  41 +++++
 .../qubit/survey/dao/SurveyResponseDao.java   |  51 ++++++
 .../java/ltd/qubit/survey/dao/UserDao.java    |  27 +++
 .../ltd/qubit/survey/model/ErrorInfo.java     |  65 +++++++
 .../java/ltd/qubit/survey/model/Option.java   |  40 +++++
 .../ltd/qubit/survey/model/PositionType.java  |  36 ++++
 .../java/ltd/qubit/survey/model/Question.java |  50 ++++++
 .../ltd/qubit/survey/model/QuestionType.java  |  21 +++
 .../qubit/survey/model/SurveyResponse.java    |  41 +++++
 .../java/ltd/qubit/survey/model/User.java     |  40 +++++
 .../java/ltd/qubit/survey/model/WorkArea.java |  51 ++++++
 .../ltd/qubit/survey/service/BaseService.java |  55 ++++++
 .../qubit/survey/service/OptionService.java   |  42 +++++
 .../qubit/survey/service/QuestionService.java |  54 ++++++
 .../survey/service/SurveyResponseService.java |  64 +++++++
 .../ltd/qubit/survey/service/UserService.java |  46 +++++
 .../service/impl/OptionServiceImpl.java       |  73 ++++++++
 .../service/impl/QuestionServiceImpl.java     | 128 ++++++++++++++
 .../impl/SurveyResponseServiceImpl.java       | 111 ++++++++++++
 .../survey/service/impl/UserServiceImpl.java  |  72 ++++++++
 src/main/resources/application.properties     |  18 ++
 .../resources/mybatis/mapper/OptionMapper.xml |  83 +++++++++
 .../mybatis/mapper/QuestionMapper.xml         |  86 +++++++++
 .../mybatis/mapper/SurveyResponseMapper.xml   |  93 ++++++++++
 .../resources/mybatis/mapper/UserMapper.xml   |  68 ++++++++
 src/main/resources/mybatis/mybatis-config.xml |  32 ++++
 .../resources/spring/applicationContext.xml   |  24 +++
 src/main/resources/spring/spring-mvc.xml      |  46 +++++
 src/main/resources/spring/spring-mybatis.xml  |  39 +++++
 src/main/webapp/WEB-INF/web.xml               |  57 ++++++
 target/classes/application.properties         |  18 ++
 .../controller/GlobalExceptionHandler.class   | Bin 0 -> 5690 bytes
 .../controller/QuestionController.class       | Bin 0 -> 3157 bytes
 .../survey/controller/SurveyController.class  | Bin 0 -> 2039 bytes
 .../survey/controller/UserController.class    | Bin 0 -> 2553 bytes
 .../ltd/qubit/survey/dao/BaseDao.class        | Bin 0 -> 496 bytes
 .../ltd/qubit/survey/dao/OptionDao.class      | Bin 0 -> 769 bytes
 .../ltd/qubit/survey/dao/QuestionDao.class    | Bin 0 -> 791 bytes
 .../qubit/survey/dao/SurveyResponseDao.class  | Bin 0 -> 842 bytes
 .../ltd/qubit/survey/dao/UserDao.class        | Bin 0 -> 589 bytes
 .../ltd/qubit/survey/model/ErrorInfo.class    | Bin 0 -> 3832 bytes
 .../ltd/qubit/survey/model/Option.class       | Bin 0 -> 4217 bytes
 .../ltd/qubit/survey/model/PositionType.class | Bin 0 -> 1558 bytes
 .../ltd/qubit/survey/model/Question.class     | Bin 0 -> 5546 bytes
 .../ltd/qubit/survey/model/QuestionType.class | Bin 0 -> 1203 bytes
 .../qubit/survey/model/SurveyResponse.class   | Bin 0 -> 4455 bytes
 .../classes/ltd/qubit/survey/model/User.class | Bin 0 -> 4313 bytes
 .../ltd/qubit/survey/model/WorkArea.class     | Bin 0 -> 1725 bytes
 .../qubit/survey/service/BaseService.class    | Bin 0 -> 705 bytes
 .../qubit/survey/service/OptionService.class  | Bin 0 -> 860 bytes
 .../survey/service/QuestionService.class      | Bin 0 -> 1270 bytes
 .../service/SurveyResponseService.class       | Bin 0 -> 1316 bytes
 .../qubit/survey/service/UserService.class    | Bin 0 -> 885 bytes
 .../service/impl/OptionServiceImpl.class      | Bin 0 -> 4157 bytes
 .../service/impl/QuestionServiceImpl$1.class  | Bin 0 -> 916 bytes
 .../service/impl/QuestionServiceImpl.class    | Bin 0 -> 6790 bytes
 .../impl/SurveyResponseServiceImpl.class      | Bin 0 -> 6808 bytes
 .../survey/service/impl/UserServiceImpl.class | Bin 0 -> 3187 bytes
 .../classes/mybatis/mapper/OptionMapper.xml   |  83 +++++++++
 .../classes/mybatis/mapper/QuestionMapper.xml |  86 +++++++++
 .../mybatis/mapper/SurveyResponseMapper.xml   |  93 ++++++++++
 target/classes/mybatis/mapper/UserMapper.xml  |  68 ++++++++
 target/classes/mybatis/mybatis-config.xml     |  32 ++++
 target/classes/spring/applicationContext.xml  |  24 +++
 target/classes/spring/spring-mvc.xml          |  46 +++++
 target/classes/spring/spring-mybatis.xml      |  39 +++++
 .../compile/default-compile/createdFiles.lst  |  27 +++
 .../compile/default-compile/inputFiles.lst    |  26 +++
 155 files changed, 5887 insertions(+)
 create mode 100644 backend/pom.xml
 create mode 100644 backend/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/controller/QuestionController.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/controller/SurveyController.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/controller/UserController.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/dao/BaseDao.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/dao/OptionDao.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/dao/QuestionDao.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/dao/UserDao.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/model/ErrorInfo.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/model/Option.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/model/PositionType.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/model/Question.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/model/QuestionType.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/model/SurveyResponse.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/model/User.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/model/WorkArea.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/BaseService.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/OptionService.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/QuestionService.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/UserService.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java
 create mode 100644 backend/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java
 create mode 100644 backend/src/main/resources/application.properties
 create mode 100644 backend/src/main/resources/mybatis/mapper/OptionMapper.xml
 create mode 100644 backend/src/main/resources/mybatis/mapper/QuestionMapper.xml
 create mode 100644 backend/src/main/resources/mybatis/mapper/SurveyResponseMapper.xml
 create mode 100644 backend/src/main/resources/mybatis/mapper/UserMapper.xml
 create mode 100644 backend/src/main/resources/mybatis/mybatis-config.xml
 create mode 100644 backend/src/main/resources/spring/applicationContext.xml
 create mode 100644 backend/src/main/resources/spring/spring-mvc.xml
 create mode 100644 backend/src/main/resources/spring/spring-mybatis.xml
 create mode 100644 backend/src/main/webapp/WEB-INF/web.xml
 create mode 100644 backend/target/classes/application.properties
 create mode 100644 backend/target/classes/ltd/qubit/survey/controller/GlobalExceptionHandler.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/controller/QuestionController.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/controller/SurveyController.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/controller/UserController.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/dao/BaseDao.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/dao/OptionDao.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/dao/QuestionDao.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/dao/SurveyResponseDao.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/dao/UserDao.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/model/ErrorInfo.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/model/Option.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/model/PositionType.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/model/Question.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/model/QuestionType.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/model/SurveyResponse.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/model/User.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/model/WorkArea.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/BaseService.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/OptionService.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/QuestionService.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/SurveyResponseService.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/UserService.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/impl/OptionServiceImpl.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl$1.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.class
 create mode 100644 backend/target/classes/ltd/qubit/survey/service/impl/UserServiceImpl.class
 create mode 100644 backend/target/classes/mybatis/mapper/OptionMapper.xml
 create mode 100644 backend/target/classes/mybatis/mapper/QuestionMapper.xml
 create mode 100644 backend/target/classes/mybatis/mapper/SurveyResponseMapper.xml
 create mode 100644 backend/target/classes/mybatis/mapper/UserMapper.xml
 create mode 100644 backend/target/classes/mybatis/mybatis-config.xml
 create mode 100644 backend/target/classes/spring/applicationContext.xml
 create mode 100644 backend/target/classes/spring/spring-mvc.xml
 create mode 100644 backend/target/classes/spring/spring-mybatis.xml
 create mode 100644 backend/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
 create mode 100644 backend/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
 create mode 100755 database/init_database.sh
 create mode 100644 database/init_database.sql
 create mode 100644 doc/api.md
 create mode 100644 doc/requirements.md
 create mode 100644 doc/大模型应用需求调研问卷.md
 create mode 100644 pom.xml
 create mode 100644 src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java
 create mode 100644 src/main/java/ltd/qubit/survey/controller/QuestionController.java
 create mode 100644 src/main/java/ltd/qubit/survey/controller/SurveyController.java
 create mode 100644 src/main/java/ltd/qubit/survey/controller/UserController.java
 create mode 100644 src/main/java/ltd/qubit/survey/dao/BaseDao.java
 create mode 100644 src/main/java/ltd/qubit/survey/dao/OptionDao.java
 create mode 100644 src/main/java/ltd/qubit/survey/dao/QuestionDao.java
 create mode 100644 src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java
 create mode 100644 src/main/java/ltd/qubit/survey/dao/UserDao.java
 create mode 100644 src/main/java/ltd/qubit/survey/model/ErrorInfo.java
 create mode 100644 src/main/java/ltd/qubit/survey/model/Option.java
 create mode 100644 src/main/java/ltd/qubit/survey/model/PositionType.java
 create mode 100644 src/main/java/ltd/qubit/survey/model/Question.java
 create mode 100644 src/main/java/ltd/qubit/survey/model/QuestionType.java
 create mode 100644 src/main/java/ltd/qubit/survey/model/SurveyResponse.java
 create mode 100644 src/main/java/ltd/qubit/survey/model/User.java
 create mode 100644 src/main/java/ltd/qubit/survey/model/WorkArea.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/BaseService.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/OptionService.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/QuestionService.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/SurveyResponseService.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/UserService.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java
 create mode 100644 src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java
 create mode 100644 src/main/resources/application.properties
 create mode 100644 src/main/resources/mybatis/mapper/OptionMapper.xml
 create mode 100644 src/main/resources/mybatis/mapper/QuestionMapper.xml
 create mode 100644 src/main/resources/mybatis/mapper/SurveyResponseMapper.xml
 create mode 100644 src/main/resources/mybatis/mapper/UserMapper.xml
 create mode 100644 src/main/resources/mybatis/mybatis-config.xml
 create mode 100644 src/main/resources/spring/applicationContext.xml
 create mode 100644 src/main/resources/spring/spring-mvc.xml
 create mode 100644 src/main/resources/spring/spring-mybatis.xml
 create mode 100644 src/main/webapp/WEB-INF/web.xml
 create mode 100644 target/classes/application.properties
 create mode 100644 target/classes/ltd/qubit/survey/controller/GlobalExceptionHandler.class
 create mode 100644 target/classes/ltd/qubit/survey/controller/QuestionController.class
 create mode 100644 target/classes/ltd/qubit/survey/controller/SurveyController.class
 create mode 100644 target/classes/ltd/qubit/survey/controller/UserController.class
 create mode 100644 target/classes/ltd/qubit/survey/dao/BaseDao.class
 create mode 100644 target/classes/ltd/qubit/survey/dao/OptionDao.class
 create mode 100644 target/classes/ltd/qubit/survey/dao/QuestionDao.class
 create mode 100644 target/classes/ltd/qubit/survey/dao/SurveyResponseDao.class
 create mode 100644 target/classes/ltd/qubit/survey/dao/UserDao.class
 create mode 100644 target/classes/ltd/qubit/survey/model/ErrorInfo.class
 create mode 100644 target/classes/ltd/qubit/survey/model/Option.class
 create mode 100644 target/classes/ltd/qubit/survey/model/PositionType.class
 create mode 100644 target/classes/ltd/qubit/survey/model/Question.class
 create mode 100644 target/classes/ltd/qubit/survey/model/QuestionType.class
 create mode 100644 target/classes/ltd/qubit/survey/model/SurveyResponse.class
 create mode 100644 target/classes/ltd/qubit/survey/model/User.class
 create mode 100644 target/classes/ltd/qubit/survey/model/WorkArea.class
 create mode 100644 target/classes/ltd/qubit/survey/service/BaseService.class
 create mode 100644 target/classes/ltd/qubit/survey/service/OptionService.class
 create mode 100644 target/classes/ltd/qubit/survey/service/QuestionService.class
 create mode 100644 target/classes/ltd/qubit/survey/service/SurveyResponseService.class
 create mode 100644 target/classes/ltd/qubit/survey/service/UserService.class
 create mode 100644 target/classes/ltd/qubit/survey/service/impl/OptionServiceImpl.class
 create mode 100644 target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl$1.class
 create mode 100644 target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl.class
 create mode 100644 target/classes/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.class
 create mode 100644 target/classes/ltd/qubit/survey/service/impl/UserServiceImpl.class
 create mode 100644 target/classes/mybatis/mapper/OptionMapper.xml
 create mode 100644 target/classes/mybatis/mapper/QuestionMapper.xml
 create mode 100644 target/classes/mybatis/mapper/SurveyResponseMapper.xml
 create mode 100644 target/classes/mybatis/mapper/UserMapper.xml
 create mode 100644 target/classes/mybatis/mybatis-config.xml
 create mode 100644 target/classes/spring/applicationContext.xml
 create mode 100644 target/classes/spring/spring-mvc.xml
 create mode 100644 target/classes/spring/spring-mybatis.xml
 create mode 100644 target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
 create mode 100644 target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

diff --git a/backend/pom.xml b/backend/pom.xml
new file mode 100644
index 0000000..f7deefc
--- /dev/null
+++ b/backend/pom.xml
@@ -0,0 +1,161 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ltd.qubit</groupId>
+    <artifactId>llm-survey-api</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>war</packaging>
+
+    <properties>
+        <java.version>17</java.version>
+        <maven.compiler.source>${java.version}</maven.compiler.source>
+        <maven.compiler.target>${java.version}</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <spring.version>5.3.31</spring.version>
+        <mybatis.version>3.5.15</mybatis.version>
+        <mybatis-spring.version>2.1.2</mybatis-spring.version>
+        <mysql-connector.version>8.3.0</mysql-connector.version>
+        <hikaricp.version>5.1.0</hikaricp.version>
+        <jackson.version>2.16.1</jackson.version>
+        <lombok.version>1.18.30</lombok.version>
+        <slf4j.version>2.0.11</slf4j.version>
+        <logback.version>1.4.14</logback.version>
+        <servlet-api.version>4.0.1</servlet-api.version>
+    </properties>
+
+    <dependencies>
+        <!-- Spring Framework -->
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-webmvc</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-jdbc</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-context-support</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-tx</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+
+        <!-- MyBatis -->
+        <dependency>
+            <groupId>org.mybatis</groupId>
+            <artifactId>mybatis</artifactId>
+            <version>${mybatis.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.mybatis</groupId>
+            <artifactId>mybatis-spring</artifactId>
+            <version>${mybatis-spring.version}</version>
+        </dependency>
+
+        <!-- MySQL Connector -->
+        <dependency>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
+            <version>${mysql-connector.version}</version>
+        </dependency>
+
+        <!-- HikariCP -->
+        <dependency>
+            <groupId>com.zaxxer</groupId>
+            <artifactId>HikariCP</artifactId>
+            <version>${hikaricp.version}</version>
+        </dependency>
+
+        <!-- Jackson -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+
+        <!-- Lombok -->
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>${lombok.version}</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <!-- Logging -->
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>${slf4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>${logback.version}</version>
+        </dependency>
+
+        <!-- Servlet API -->
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>${servlet-api.version}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>llm-survey-api</finalName>
+        <plugins>
+            <!-- 编译插件 -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${java.version}</release>
+                    <encoding>${project.build.sourceEncoding}</encoding>
+                    <annotationProcessorPaths>
+                        <path>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                            <version>${lombok.version}</version>
+                        </path>
+                    </annotationProcessorPaths>
+                </configuration>
+            </plugin>
+
+            <!-- WAR打包插件 -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <version>3.4.0</version>
+                <configuration>
+                    <failOnMissingWebXml>false</failOnMissingWebXml>
+                </configuration>
+            </plugin>
+        </plugins>
+
+        <!-- 资源文件配置 -->
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+            <resource>
+                <directory>src/main/java</directory>
+                <includes>
+                    <include>**/*.xml</include>
+                </includes>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+</project>
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java b/backend/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java
new file mode 100644
index 0000000..ef094e3
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java
@@ -0,0 +1,78 @@
+package ltd.qubit.survey.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import ltd.qubit.survey.model.ErrorInfo;
+import org.springframework.dao.DataAccessException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.BindException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+/**
+ * 全局异常处理器
+ */
+@Slf4j
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    /**
+     * 处理参数校验异常
+     */
+    @ExceptionHandler(BindException.class)
+    public ResponseEntity<ErrorInfo> handleBindException(BindException e) {
+        String message = e.getBindingResult().getFieldErrors().stream()
+                .map(error -> error.getField() + ": " + error.getDefaultMessage())
+                .reduce((a, b) -> a + "; " + b)
+                .orElse("参数错误");
+
+        ErrorInfo error = ErrorInfo.of(
+                "INVALID_ARGUMENT",
+                "参数校验失败",
+                message,
+                e.getObjectName());
+
+        return new ResponseEntity<>(error, HttpStatus.BAD_REQUEST);
+    }
+
+    /**
+     * 处理业务异常
+     */
+    @ExceptionHandler(IllegalArgumentException.class)
+    public ResponseEntity<ErrorInfo> handleIllegalArgumentException(IllegalArgumentException e) {
+        log.warn("业务异常", e);
+        ErrorInfo error = ErrorInfo.of(
+                "BAD_REQUEST",
+                e.getMessage(),
+                e.getClass().getName());
+        return new ResponseEntity<>(error, HttpStatus.BAD_REQUEST);
+    }
+
+    /**
+     * 处理数据访问异常
+     */
+    @ExceptionHandler(DataAccessException.class)
+    public ResponseEntity<ErrorInfo> handleDataAccessException(DataAccessException e) {
+        log.error("数据访问异常", e);
+        ErrorInfo error = ErrorInfo.of(
+                "DATABASE_ERROR",
+                "数据库访问错误",
+                e.getMessage(),
+                e.getClass().getName());
+        return new ResponseEntity<>(error, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+
+    /**
+     * 处理其他未知异常
+     */
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ErrorInfo> handleUnknownException(Exception e) {
+        log.error("系统异常", e);
+        ErrorInfo error = ErrorInfo.of(
+                "SYSTEM_ERROR",
+                "系统错误",
+                e.getMessage(),
+                e.getClass().getName());
+        return new ResponseEntity<>(error, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/controller/QuestionController.java b/backend/src/main/java/ltd/qubit/survey/controller/QuestionController.java
new file mode 100644
index 0000000..e983c75
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/controller/QuestionController.java
@@ -0,0 +1,61 @@
+package ltd.qubit.survey.controller;
+
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.Option;
+import ltd.qubit.survey.service.QuestionService;
+import ltd.qubit.survey.service.OptionService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * 问题控制器
+ */
+@RestController
+@RequiredArgsConstructor
+public class QuestionController {
+    private final QuestionService questionService;
+    private final OptionService optionService;
+
+    /**
+     * 获取用户的问题列表
+     *
+     * @param userId 用户ID
+     * @return 问题列表
+     */
+    @GetMapping("/question/user/{userId}")
+    public List<Question> getUserQuestions(@PathVariable Long userId) {
+        return questionService.getUserQuestions(userId);
+    }
+
+    /**
+     * 获取问题的选项列表
+     *
+     * @param questionId 问题ID
+     * @return 选项列表
+     */
+    @GetMapping("/question/{questionId}/option")
+    public List<Option> getQuestionOptions(@PathVariable Long questionId) {
+        return optionService.findByQuestionId(questionId);
+    }
+
+    /**
+     * 获取下一个问题
+     *
+     * @param userId 用户ID
+     * @param currentQuestionNumber 当前问题序号
+     * @param selectedOptions 选中的选项列表
+     * @return 下一个问题
+     */
+    @GetMapping("/question/next")
+    public Question getNextQuestion(
+            @PathVariable Long userId,
+            @PathVariable Integer currentQuestionNumber,
+            @PathVariable List<String> selectedOptions) {
+        return questionService.getNextQuestion(userId, currentQuestionNumber, selectedOptions)
+                .orElseThrow(() -> new IllegalArgumentException("没有更多问题了"));
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/controller/SurveyController.java b/backend/src/main/java/ltd/qubit/survey/controller/SurveyController.java
new file mode 100644
index 0000000..ad34b42
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/controller/SurveyController.java
@@ -0,0 +1,56 @@
+package ltd.qubit.survey.controller;
+
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.model.SurveyResponse;
+import ltd.qubit.survey.service.SurveyResponseService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * 问卷控制器
+ */
+@RestController
+@RequiredArgsConstructor
+public class SurveyController {
+    private final SurveyResponseService surveyResponseService;
+
+    /**
+     * 提交问卷答案
+     *
+     * @param userId 用户ID
+     * @param responses 答案列表
+     * @return 提交成功的答案列表
+     */
+    @PostMapping("/survey/submit/{userId}")
+    public List<SurveyResponse> submitSurvey(
+            @PathVariable Long userId,
+            @RequestBody List<SurveyResponse> responses) {
+        return surveyResponseService.submitSurvey(userId, responses);
+    }
+
+    /**
+     * 获取用户的问卷答案
+     *
+     * @param userId 用户ID
+     * @return 答案列表
+     */
+    @GetMapping("/survey/user/{userId}")
+    public List<SurveyResponse> getUserResponses(@PathVariable Long userId) {
+        return surveyResponseService.findByUserId(userId);
+    }
+
+    /**
+     * 获取问题的所有答案
+     *
+     * @param questionId 问题ID
+     * @return 答案列表
+     */
+    @GetMapping("/survey/question/{questionId}")
+    public List<SurveyResponse> getQuestionResponses(@PathVariable Long questionId) {
+        return surveyResponseService.findByQuestionId(questionId);
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/controller/UserController.java b/backend/src/main/java/ltd/qubit/survey/controller/UserController.java
new file mode 100644
index 0000000..4ec9d5d
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/controller/UserController.java
@@ -0,0 +1,53 @@
+package ltd.qubit.survey.controller;
+
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.service.UserService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * 用户控制器
+ */
+@RestController
+@RequiredArgsConstructor
+public class UserController {
+    private final UserService userService;
+
+    /**
+     * 用户注册
+     *
+     * @param user 用户信息
+     * @return 注册成功的用户信息
+     */
+    @PostMapping("/user/register")
+    public User register(@RequestBody User user) {
+        return userService.register(user);
+    }
+
+    /**
+     * 根据ID查询用户
+     *
+     * @param id 用户ID
+     * @return 用户信息
+     */
+    @GetMapping("/user/{id}")
+    public User findById(@PathVariable Long id) {
+        return userService.findById(id)
+                .orElseThrow(() -> new IllegalArgumentException("用户不存在"));
+    }
+
+    /**
+     * 检查手机号是否已注册
+     *
+     * @param phone 手机号
+     * @return 是否已注册
+     */
+    @GetMapping("/user/check/{phone}")
+    public boolean checkPhone(@PathVariable String phone) {
+        return userService.isPhoneRegistered(phone);
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/dao/BaseDao.java b/backend/src/main/java/ltd/qubit/survey/dao/BaseDao.java
new file mode 100644
index 0000000..fea38a9
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/dao/BaseDao.java
@@ -0,0 +1,51 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+
+/**
+ * 基础DAO接口，定义通用的CRUD操作
+ *
+ * @param <T> 实体类型
+ * @param <K> 主键类型
+ */
+public interface BaseDao<T, K> {
+    /**
+     * 插入一条记录
+     *
+     * @param entity 实体对象
+     * @return 影响的行数
+     */
+    int insert(T entity);
+
+    /**
+     * 根据主键删除记录
+     *
+     * @param id 主键
+     * @return 影响的行数
+     */
+    int deleteById(K id);
+
+    /**
+     * 更新记录
+     *
+     * @param entity 实体对象
+     * @return 影响的行数
+     */
+    int update(T entity);
+
+    /**
+     * 根据主键查询
+     *
+     * @param id 主键
+     * @return 实体对象
+     */
+    Optional<T> findById(K id);
+
+    /**
+     * 查询所有记录
+     *
+     * @return 实体对象列表
+     */
+    List<T> findAll();
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/dao/OptionDao.java b/backend/src/main/java/ltd/qubit/survey/dao/OptionDao.java
new file mode 100644
index 0000000..16ca3d4
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/dao/OptionDao.java
@@ -0,0 +1,43 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.Option;
+
+/**
+ * 选项DAO接口
+ */
+public interface OptionDao extends BaseDao<Option, Long> {
+    /**
+     * 根据问题ID查询选项列表
+     *
+     * @param questionId 问题ID
+     * @return 选项列表
+     */
+    List<Option> findByQuestionId(Long questionId);
+
+    /**
+     * 根据问题ID和选项代码查询
+     *
+     * @param questionId 问题ID
+     * @param optionCode 选项代码
+     * @return 选项对象
+     */
+    Optional<Option> findByQuestionIdAndCode(Long questionId, String optionCode);
+
+    /**
+     * 批量插入选项
+     *
+     * @param options 选项列表
+     * @return 影响的行数
+     */
+    int batchInsert(List<Option> options);
+
+    /**
+     * 根据问题ID删除所有选项
+     *
+     * @param questionId 问题ID
+     * @return 影响的行数
+     */
+    int deleteByQuestionId(Long questionId);
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/dao/QuestionDao.java b/backend/src/main/java/ltd/qubit/survey/dao/QuestionDao.java
new file mode 100644
index 0000000..b4071d2
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/dao/QuestionDao.java
@@ -0,0 +1,41 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.WorkArea;
+
+/**
+ * 问题DAO接口
+ */
+public interface QuestionDao extends BaseDao<Question, Long> {
+    /**
+     * 根据问题序号查询
+     *
+     * @param questionNumber 问题序号
+     * @return 问题对象
+     */
+    Optional<Question> findByQuestionNumber(Integer questionNumber);
+
+    /**
+     * 根据工作领域查询问题列表
+     *
+     * @param workArea 工作领域
+     * @return 问题列表
+     */
+    List<Question> findByWorkArea(WorkArea workArea);
+
+    /**
+     * 查询通用问题列表（不针对特定工作领域）
+     *
+     * @return 问题列表
+     */
+    List<Question> findCommonQuestions();
+
+    /**
+     * 获取下一个可用的问题序号
+     *
+     * @return 下一个问题序号
+     */
+    Integer getNextQuestionNumber();
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java b/backend/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java
new file mode 100644
index 0000000..dab5d09
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java
@@ -0,0 +1,51 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.SurveyResponse;
+
+/**
+ * 问卷答案DAO接口
+ */
+public interface SurveyResponseDao extends BaseDao<SurveyResponse, Long> {
+    /**
+     * 根据用户ID查询答案列表
+     *
+     * @param userId 用户ID
+     * @return 答案列表
+     */
+    List<SurveyResponse> findByUserId(Long userId);
+
+    /**
+     * 根据问题ID查询答案列表
+     *
+     * @param questionId 问题ID
+     * @return 答案列表
+     */
+    List<SurveyResponse> findByQuestionId(Long questionId);
+
+    /**
+     * 根据用户ID和问题ID查询答案
+     *
+     * @param userId 用户ID
+     * @param questionId 问题ID
+     * @return 答案对象
+     */
+    Optional<SurveyResponse> findByUserIdAndQuestionId(Long userId, Long questionId);
+
+    /**
+     * 批量插入答案
+     *
+     * @param responses 答案列表
+     * @return 影响的行数
+     */
+    int batchInsert(List<SurveyResponse> responses);
+
+    /**
+     * 根据用户ID删除所有答案
+     *
+     * @param userId 用户ID
+     * @return 影响的行数
+     */
+    int deleteByUserId(Long userId);
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/dao/UserDao.java b/backend/src/main/java/ltd/qubit/survey/dao/UserDao.java
new file mode 100644
index 0000000..99916f2
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/dao/UserDao.java
@@ -0,0 +1,27 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.model.WorkArea;
+
+/**
+ * 用户DAO接口
+ */
+public interface UserDao extends BaseDao<User, Long> {
+    /**
+     * 根据手机号查询用户
+     *
+     * @param phone 手机号
+     * @return 用户对象
+     */
+    Optional<User> findByPhone(String phone);
+
+    /**
+     * 根据工作领域查询用户列表
+     *
+     * @param workArea 工作领域
+     * @return 用户列表
+     */
+    List<User> findByWorkArea(WorkArea workArea);
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/model/ErrorInfo.java b/backend/src/main/java/ltd/qubit/survey/model/ErrorInfo.java
new file mode 100644
index 0000000..fd4a71e
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/model/ErrorInfo.java
@@ -0,0 +1,65 @@
+package ltd.qubit.survey.model;
+
+import lombok.Data;
+
+/**
+ * 错误信息
+ */
+@Data
+public class ErrorInfo {
+    /**
+     * 错误代码
+     */
+    private String code;
+
+    /**
+     * 错误消息
+     */
+    private String message;
+
+    /**
+     * 错误详情
+     */
+    private String detail;
+
+    /**
+     * 时间戳
+     */
+    private long timestamp;
+
+    /**
+     * 请求路径
+     */
+    private String path;
+
+    /**
+     * 创建错误信息
+     *
+     * @param code 错误代码
+     * @param message 错误消息
+     * @param detail 错误详情
+     * @param path 请求路径
+     * @return 错误信息
+     */
+    public static ErrorInfo of(String code, String message, String detail, String path) {
+        ErrorInfo error = new ErrorInfo();
+        error.setCode(code);
+        error.setMessage(message);
+        error.setDetail(detail);
+        error.setPath(path);
+        error.setTimestamp(System.currentTimeMillis());
+        return error;
+    }
+
+    /**
+     * 创建错误信息（无详情）
+     *
+     * @param code 错误代码
+     * @param message 错误消息
+     * @param path 请求路径
+     * @return 错误信息
+     */
+    public static ErrorInfo of(String code, String message, String path) {
+        return of(code, message, null, path);
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/model/Option.java b/backend/src/main/java/ltd/qubit/survey/model/Option.java
new file mode 100644
index 0000000..40301ee
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/model/Option.java
@@ -0,0 +1,40 @@
+package ltd.qubit.survey.model;
+
+import java.time.LocalDateTime;
+import lombok.Data;
+
+/**
+ * 问题选项实体类
+ */
+@Data
+public class Option {
+    /**
+     * 选项ID
+     */
+    private Long id;
+
+    /**
+     * 关联的问题ID
+     */
+    private Long questionId;
+
+    /**
+     * 选项代码（如A、B、C）
+     */
+    private String optionCode;
+
+    /**
+     * 选项内容
+     */
+    private String content;
+
+    /**
+     * 是否需要填写文本
+     */
+    private Boolean requiresText;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createdAt;
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/model/PositionType.java b/backend/src/main/java/ltd/qubit/survey/model/PositionType.java
new file mode 100644
index 0000000..cf4f932
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/model/PositionType.java
@@ -0,0 +1,36 @@
+package ltd.qubit.survey.model;
+
+/**
+ * 岗位性质枚举
+ */
+public enum PositionType {
+    /**
+     * 管理岗
+     */
+    MANAGEMENT("管理岗"),
+
+    /**
+     * 技术岗
+     */
+    TECHNICAL("技术岗"),
+
+    /**
+     * 业务岗
+     */
+    BUSINESS("业务岗"),
+
+    /**
+     * 职能支持岗
+     */
+    SUPPORT("职能支持岗");
+
+    private final String displayName;
+
+    PositionType(String displayName) {
+        this.displayName = displayName;
+    }
+
+    public String getDisplayName() {
+        return displayName;
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/model/Question.java b/backend/src/main/java/ltd/qubit/survey/model/Question.java
new file mode 100644
index 0000000..2e06c26
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/model/Question.java
@@ -0,0 +1,50 @@
+package ltd.qubit.survey.model;
+
+import java.time.LocalDateTime;
+import lombok.Data;
+
+/**
+ * 问题实体类
+ */
+@Data
+public class Question {
+    /**
+     * 问题ID
+     */
+    private Long id;
+
+    /**
+     * 问题序号
+     */
+    private Integer questionNumber;
+
+    /**
+     * 问题内容
+     */
+    private String content;
+
+    /**
+     * 问题类型（单选、多选、文本）
+     */
+    private QuestionType questionType;
+
+    /**
+     * 针对的工作领域（为null表示通用问题）
+     */
+    private WorkArea workArea;
+
+    /**
+     * 是否必答
+     */
+    private Boolean isRequired;
+
+    /**
+     * 跳转逻辑（JSON格式）
+     */
+    private String nextQuestionLogic;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createdAt;
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/model/QuestionType.java b/backend/src/main/java/ltd/qubit/survey/model/QuestionType.java
new file mode 100644
index 0000000..a85da6b
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/model/QuestionType.java
@@ -0,0 +1,21 @@
+package ltd.qubit.survey.model;
+
+/**
+ * 问题类型枚举
+ */
+public enum QuestionType {
+    /**
+     * 单选题
+     */
+    SINGLE_CHOICE,
+
+    /**
+     * 多选题
+     */
+    MULTIPLE_CHOICE,
+
+    /**
+     * 文本题
+     */
+    TEXT
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/model/SurveyResponse.java b/backend/src/main/java/ltd/qubit/survey/model/SurveyResponse.java
new file mode 100644
index 0000000..e961eea
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/model/SurveyResponse.java
@@ -0,0 +1,41 @@
+package ltd.qubit.survey.model;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import lombok.Data;
+
+/**
+ * 问卷答案实体类
+ */
+@Data
+public class SurveyResponse {
+    /**
+     * 答案ID
+     */
+    private Long id;
+
+    /**
+     * 用户ID
+     */
+    private Long userId;
+
+    /**
+     * 问题ID
+     */
+    private Long questionId;
+
+    /**
+     * 选中的选项代码列表（JSON格式）
+     */
+    private List<String> selectedOptions;
+
+    /**
+     * 文本答案
+     */
+    private String textAnswer;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createdAt;
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/model/User.java b/backend/src/main/java/ltd/qubit/survey/model/User.java
new file mode 100644
index 0000000..86c8192
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/model/User.java
@@ -0,0 +1,40 @@
+package ltd.qubit.survey.model;
+
+import java.time.LocalDateTime;
+import lombok.Data;
+
+/**
+ * 用户信息实体类
+ */
+@Data
+public class User {
+    /**
+     * 用户ID
+     */
+    private Long id;
+
+    /**
+     * 姓名
+     */
+    private String name;
+
+    /**
+     * 手机号码
+     */
+    private String phone;
+
+    /**
+     * 工作领域
+     */
+    private WorkArea workArea;
+
+    /**
+     * 岗位性质
+     */
+    private PositionType positionType;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createdAt;
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/model/WorkArea.java b/backend/src/main/java/ltd/qubit/survey/model/WorkArea.java
new file mode 100644
index 0000000..f13981d
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/model/WorkArea.java
@@ -0,0 +1,51 @@
+package ltd.qubit.survey.model;
+
+/**
+ * 工作领域枚举
+ */
+public enum WorkArea {
+    /**
+     * 研发领域
+     */
+    RD("研发"),
+
+    /**
+     * 项目领域
+     */
+    PROJECT("项目"),
+
+    /**
+     * 保险领域
+     */
+    INSURANCE("保险"),
+
+    /**
+     * 财务领域
+     */
+    FINANCE("财务"),
+
+    /**
+     * 运营领域
+     */
+    OPERATION("运营"),
+
+    /**
+     * 客服领域
+     */
+    CUSTOMER_SERVICE("客服"),
+
+    /**
+     * 综合管理领域
+     */
+    ADMIN("综合管理");
+
+    private final String displayName;
+
+    WorkArea(String displayName) {
+        this.displayName = displayName;
+    }
+
+    public String getDisplayName() {
+        return displayName;
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/BaseService.java b/backend/src/main/java/ltd/qubit/survey/service/BaseService.java
new file mode 100644
index 0000000..dd65ae1
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/BaseService.java
@@ -0,0 +1,55 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * 基础Service接口，定义通用的CRUD操作
+ *
+ * @param <T> 实体类型
+ * @param <K> 主键类型
+ */
+@Transactional(readOnly = true)
+public interface BaseService<T, K> {
+    /**
+     * 新增
+     *
+     * @param entity 实体对象
+     * @return 实体对象
+     */
+    @Transactional
+    T create(T entity);
+
+    /**
+     * 删除
+     *
+     * @param id 主键
+     */
+    @Transactional
+    void delete(K id);
+
+    /**
+     * 更新
+     *
+     * @param entity 实体对象
+     * @return 实体对象
+     */
+    @Transactional
+    T update(T entity);
+
+    /**
+     * 根据ID查询
+     *
+     * @param id 主键
+     * @return 实体对象
+     */
+    Optional<T> findById(K id);
+
+    /**
+     * 查询所有
+     *
+     * @return 实体对象列表
+     */
+    List<T> findAll();
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/OptionService.java b/backend/src/main/java/ltd/qubit/survey/service/OptionService.java
new file mode 100644
index 0000000..ea0677a
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/OptionService.java
@@ -0,0 +1,42 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.Option;
+
+/**
+ * 选项服务接口
+ */
+public interface OptionService extends BaseService<Option, Long> {
+    /**
+     * 根据问题ID查询选项列表
+     *
+     * @param questionId 问题ID
+     * @return 选项列表
+     */
+    List<Option> findByQuestionId(Long questionId);
+
+    /**
+     * 根据问题ID和选项代码查询
+     *
+     * @param questionId 问题ID
+     * @param optionCode 选项代码
+     * @return 选项对象
+     */
+    Optional<Option> findByQuestionIdAndCode(Long questionId, String optionCode);
+
+    /**
+     * 批量创建选项
+     *
+     * @param options 选项列表
+     * @return 创建成功的选项列表
+     */
+    List<Option> batchCreate(List<Option> options);
+
+    /**
+     * 删除问题的所有选项
+     *
+     * @param questionId 问题ID
+     */
+    void deleteByQuestionId(Long questionId);
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/QuestionService.java b/backend/src/main/java/ltd/qubit/survey/service/QuestionService.java
new file mode 100644
index 0000000..9901aec
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/QuestionService.java
@@ -0,0 +1,54 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.WorkArea;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * 问题服务接口
+ */
+@Transactional(readOnly = true)
+public interface QuestionService extends BaseService<Question, Long> {
+    /**
+     * 根据问题序号查询
+     *
+     * @param questionNumber 问题序号
+     * @return 问题对象
+     */
+    Optional<Question> findByQuestionNumber(Integer questionNumber);
+
+    /**
+     * 根据工作领域查询问题列表
+     *
+     * @param workArea 工作领域
+     * @return 问题列表
+     */
+    List<Question> findByWorkArea(WorkArea workArea);
+
+    /**
+     * 查询通用问题列表（不针对特定工作领域）
+     *
+     * @return 问题列表
+     */
+    List<Question> findCommonQuestions();
+
+    /**
+     * 获取用户的下一个问题
+     *
+     * @param userId 用户ID
+     * @param currentQuestionNumber 当前问题序号
+     * @param selectedOptions 当前问题的选择项
+     * @return 下一个问题
+     */
+    Optional<Question> getNextQuestion(Long userId, Integer currentQuestionNumber, List<String> selectedOptions);
+
+    /**
+     * 获取用户的问题列表（包括通用问题和针对其工作领域的问题）
+     *
+     * @param userId 用户ID
+     * @return 问题列表
+     */
+    List<Question> getUserQuestions(Long userId);
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java b/backend/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java
new file mode 100644
index 0000000..7fe04ea
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java
@@ -0,0 +1,64 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.SurveyResponse;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * 问卷答案服务接口
+ */
+@Transactional(readOnly = true)
+public interface SurveyResponseService extends BaseService<SurveyResponse, Long> {
+    /**
+     * 根据用户ID查询答案列表
+     *
+     * @param userId 用户ID
+     * @return 答案列表
+     */
+    List<SurveyResponse> findByUserId(Long userId);
+
+    /**
+     * 根据问题ID查询答案列表
+     *
+     * @param questionId 问题ID
+     * @return 答案列表
+     */
+    List<SurveyResponse> findByQuestionId(Long questionId);
+
+    /**
+     * 根据用户ID和问题ID查询答案
+     *
+     * @param userId 用户ID
+     * @param questionId 问题ID
+     * @return 答案对象
+     */
+    Optional<SurveyResponse> findByUserIdAndQuestionId(Long userId, Long questionId);
+
+    /**
+     * 批量保存答案
+     *
+     * @param responses 答案列表
+     * @return 保存成功的答案列表
+     */
+    @Transactional
+    List<SurveyResponse> batchSave(List<SurveyResponse> responses);
+
+    /**
+     * 删除用户的所有答案
+     *
+     * @param userId 用户ID
+     */
+    @Transactional
+    void deleteByUserId(Long userId);
+
+    /**
+     * 提交问卷答案
+     *
+     * @param userId 用户ID
+     * @param responses 答案列表
+     * @return 提交成功的答案列表
+     */
+    @Transactional
+    List<SurveyResponse> submitSurvey(Long userId, List<SurveyResponse> responses);
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/UserService.java b/backend/src/main/java/ltd/qubit/survey/service/UserService.java
new file mode 100644
index 0000000..af07437
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/UserService.java
@@ -0,0 +1,46 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.model.WorkArea;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * 用户服务接口
+ */
+@Transactional(readOnly = true)
+public interface UserService extends BaseService<User, Long> {
+    /**
+     * 根据手机号查询用户
+     *
+     * @param phone 手机号
+     * @return 用户对象
+     */
+    Optional<User> findByPhone(String phone);
+
+    /**
+     * 根据工作领域查询用户列表
+     *
+     * @param workArea 工作领域
+     * @return 用户列表
+     */
+    List<User> findByWorkArea(WorkArea workArea);
+
+    /**
+     * 用户注册
+     *
+     * @param user 用户信息
+     * @return 注册成功的用户
+     */
+    @Transactional
+    User register(User user);
+
+    /**
+     * 检查手机号是否已被注册
+     *
+     * @param phone 手机号
+     * @return 是否已注册
+     */
+    boolean isPhoneRegistered(String phone);
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java b/backend/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java
new file mode 100644
index 0000000..82680b8
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java
@@ -0,0 +1,73 @@
+package ltd.qubit.survey.service.impl;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.dao.OptionDao;
+import ltd.qubit.survey.model.Option;
+import ltd.qubit.survey.service.OptionService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 选项服务实现类
+ */
+@Service
+@RequiredArgsConstructor
+public class OptionServiceImpl implements OptionService {
+    private final OptionDao optionDao;
+
+    @Override
+    public Option create(Option option) {
+        option.setCreatedAt(LocalDateTime.now());
+        optionDao.insert(option);
+        return option;
+    }
+
+    @Override
+    public void delete(Long id) {
+        optionDao.deleteById(id);
+    }
+
+    @Override
+    public Option update(Option option) {
+        optionDao.update(option);
+        return option;
+    }
+
+    @Override
+    public Optional<Option> findById(Long id) {
+        return optionDao.findById(id);
+    }
+
+    @Override
+    public List<Option> findAll() {
+        return optionDao.findAll();
+    }
+
+    @Override
+    public List<Option> findByQuestionId(Long questionId) {
+        return optionDao.findByQuestionId(questionId);
+    }
+
+    @Override
+    public Optional<Option> findByQuestionIdAndCode(Long questionId, String optionCode) {
+        return optionDao.findByQuestionIdAndCode(questionId, optionCode);
+    }
+
+    @Override
+    public List<Option> batchCreate(List<Option> options) {
+        // 设置创建时间
+        LocalDateTime now = LocalDateTime.now();
+        options.forEach(option -> option.setCreatedAt(now));
+
+        // 批量插入
+        optionDao.batchInsert(options);
+        return options;
+    }
+
+    @Override
+    public void deleteByQuestionId(Long questionId) {
+        optionDao.deleteByQuestionId(questionId);
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java b/backend/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java
new file mode 100644
index 0000000..4b3c89a
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java
@@ -0,0 +1,128 @@
+package ltd.qubit.survey.service.impl;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.dao.QuestionDao;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.model.WorkArea;
+import ltd.qubit.survey.service.QuestionService;
+import ltd.qubit.survey.service.UserService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 问题服务实现类
+ */
+@Service
+@RequiredArgsConstructor
+public class QuestionServiceImpl implements QuestionService {
+    private final QuestionDao questionDao;
+    private final UserService userService;
+    private final ObjectMapper objectMapper;
+
+    @Override
+    public Question create(Question question) {
+        // 如果没有指定问题序号，则自动生成
+        if (question.getQuestionNumber() == null) {
+            question.setQuestionNumber(questionDao.getNextQuestionNumber());
+        }
+        question.setCreatedAt(LocalDateTime.now());
+        questionDao.insert(question);
+        return question;
+    }
+
+    @Override
+    public void delete(Long id) {
+        questionDao.deleteById(id);
+    }
+
+    @Override
+    public Question update(Question question) {
+        questionDao.update(question);
+        return question;
+    }
+
+    @Override
+    public Optional<Question> findById(Long id) {
+        return questionDao.findById(id);
+    }
+
+    @Override
+    public List<Question> findAll() {
+        return questionDao.findAll();
+    }
+
+    @Override
+    public Optional<Question> findByQuestionNumber(Integer questionNumber) {
+        return questionDao.findByQuestionNumber(questionNumber);
+    }
+
+    @Override
+    public List<Question> findByWorkArea(WorkArea workArea) {
+        return questionDao.findByWorkArea(workArea);
+    }
+
+    @Override
+    public List<Question> findCommonQuestions() {
+        return questionDao.findCommonQuestions();
+    }
+
+    @Override
+    public Optional<Question> getNextQuestion(Long userId, Integer currentQuestionNumber, List<String> selectedOptions) {
+        // 获取当前问题
+        Optional<Question> currentQuestion = findByQuestionNumber(currentQuestionNumber);
+        if (currentQuestion.isEmpty()) {
+            return Optional.empty();
+        }
+
+        // 如果当前问题有跳转逻辑，则根据选项判断下一个问题
+        String nextQuestionLogic = currentQuestion.get().getNextQuestionLogic();
+        if (nextQuestionLogic != null && !nextQuestionLogic.isEmpty()) {
+            try {
+                // 解析跳转逻辑JSON
+                Map<String, Integer> logic = objectMapper.readValue(nextQuestionLogic,
+                        new TypeReference<Map<String, Integer>>() {});
+
+                // 根据选项确定下一个问题序号
+                for (String option : selectedOptions) {
+                    if (logic.containsKey(option)) {
+                        return findByQuestionNumber(logic.get(option));
+                    }
+                }
+            } catch (Exception e) {
+                // JSON解析错误，继续使用默认的下一个问题
+            }
+        }
+
+        // 如果没有特殊跳转逻辑，则返回序号加1的问题
+        return findByQuestionNumber(currentQuestionNumber + 1);
+    }
+
+    @Override
+    public List<Question> getUserQuestions(Long userId) {
+        List<Question> questions = new ArrayList<>();
+
+        // 获取用户信息
+        Optional<User> user = userService.findById(userId);
+        if (user.isEmpty()) {
+            return questions;
+        }
+
+        // 添加通用问题
+        questions.addAll(findCommonQuestions());
+
+        // 添加针对用户工作领域的问题
+        questions.addAll(findByWorkArea(user.get().getWorkArea()));
+
+        // 按问题序号排序
+        questions.sort((q1, q2) -> q1.getQuestionNumber().compareTo(q2.getQuestionNumber()));
+
+        return questions;
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java b/backend/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java
new file mode 100644
index 0000000..cf0d297
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java
@@ -0,0 +1,111 @@
+package ltd.qubit.survey.service.impl;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.dao.SurveyResponseDao;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.SurveyResponse;
+import ltd.qubit.survey.service.QuestionService;
+import ltd.qubit.survey.service.SurveyResponseService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 问卷答案服务实现类
+ */
+@Service
+@RequiredArgsConstructor
+public class SurveyResponseServiceImpl implements SurveyResponseService {
+    private final SurveyResponseDao surveyResponseDao;
+    private final QuestionService questionService;
+
+    @Override
+    public SurveyResponse create(SurveyResponse response) {
+        response.setCreatedAt(LocalDateTime.now());
+        surveyResponseDao.insert(response);
+        return response;
+    }
+
+    @Override
+    public void delete(Long id) {
+        surveyResponseDao.deleteById(id);
+    }
+
+    @Override
+    public SurveyResponse update(SurveyResponse response) {
+        surveyResponseDao.update(response);
+        return response;
+    }
+
+    @Override
+    public Optional<SurveyResponse> findById(Long id) {
+        return surveyResponseDao.findById(id);
+    }
+
+    @Override
+    public List<SurveyResponse> findAll() {
+        return surveyResponseDao.findAll();
+    }
+
+    @Override
+    public List<SurveyResponse> findByUserId(Long userId) {
+        return surveyResponseDao.findByUserId(userId);
+    }
+
+    @Override
+    public List<SurveyResponse> findByQuestionId(Long questionId) {
+        return surveyResponseDao.findByQuestionId(questionId);
+    }
+
+    @Override
+    public Optional<SurveyResponse> findByUserIdAndQuestionId(Long userId, Long questionId) {
+        return surveyResponseDao.findByUserIdAndQuestionId(userId, questionId);
+    }
+
+    @Override
+    public List<SurveyResponse> batchSave(List<SurveyResponse> responses) {
+        // 设置创建时间
+        LocalDateTime now = LocalDateTime.now();
+        responses.forEach(response -> response.setCreatedAt(now));
+
+        // 批量插入
+        surveyResponseDao.batchInsert(responses);
+        return responses;
+    }
+
+    @Override
+    public void deleteByUserId(Long userId) {
+        surveyResponseDao.deleteByUserId(userId);
+    }
+
+    @Override
+    public List<SurveyResponse> submitSurvey(Long userId, List<SurveyResponse> responses) {
+        // 验证所有必答题是否已回答
+        List<Question> questions = questionService.getUserQuestions(userId);
+        for (Question question : questions) {
+            if (question.getIsRequired()) {
+                boolean answered = responses.stream()
+                        .anyMatch(response -> response.getQuestionId().equals(question.getId()));
+                if (!answered) {
+                    throw new IllegalArgumentException(
+                            String.format("问题 %d 为必答题，请填写答案", question.getQuestionNumber()));
+                }
+            }
+        }
+
+        // 删除用户之前的答案
+        deleteByUserId(userId);
+
+        // 设置用户ID和创建时间
+        LocalDateTime now = LocalDateTime.now();
+        responses.forEach(response -> {
+            response.setUserId(userId);
+            response.setCreatedAt(now);
+        });
+
+        // 批量保存答案
+        surveyResponseDao.batchInsert(responses);
+        return responses;
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java b/backend/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java
new file mode 100644
index 0000000..2c70878
--- /dev/null
+++ b/backend/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java
@@ -0,0 +1,72 @@
+package ltd.qubit.survey.service.impl;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.dao.UserDao;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.model.WorkArea;
+import ltd.qubit.survey.service.UserService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 用户服务实现类
+ */
+@Service
+@RequiredArgsConstructor
+public class UserServiceImpl implements UserService {
+    private final UserDao userDao;
+
+    @Override
+    public User create(User user) {
+        user.setCreatedAt(LocalDateTime.now());
+        userDao.insert(user);
+        return user;
+    }
+
+    @Override
+    public void delete(Long id) {
+        userDao.deleteById(id);
+    }
+
+    @Override
+    public User update(User user) {
+        userDao.update(user);
+        return user;
+    }
+
+    @Override
+    public Optional<User> findById(Long id) {
+        return userDao.findById(id);
+    }
+
+    @Override
+    public List<User> findAll() {
+        return userDao.findAll();
+    }
+
+    @Override
+    public Optional<User> findByPhone(String phone) {
+        return userDao.findByPhone(phone);
+    }
+
+    @Override
+    public List<User> findByWorkArea(WorkArea workArea) {
+        return userDao.findByWorkArea(workArea);
+    }
+
+    @Override
+    public User register(User user) {
+        // 检查手机号是否已注册
+        if (isPhoneRegistered(user.getPhone())) {
+            throw new IllegalArgumentException("手机号已被注册");
+        }
+        return create(user);
+    }
+
+    @Override
+    public boolean isPhoneRegistered(String phone) {
+        return userDao.findByPhone(phone).isPresent();
+    }
+}
\ No newline at end of file
diff --git a/backend/src/main/resources/application.properties b/backend/src/main/resources/application.properties
new file mode 100644
index 0000000..df235fd
--- /dev/null
+++ b/backend/src/main/resources/application.properties
@@ -0,0 +1,18 @@
+# 数据库配置
+jdbc.driver=com.mysql.cj.jdbc.Driver
+jdbc.url=jdbc:mysql://127.0.0.1:3306/llm_survey?useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
+jdbc.username=dev
+jdbc.password=
+
+# 连接池配置
+jdbc.pool.minimumIdle=5
+jdbc.pool.maximumPoolSize=20
+jdbc.pool.idleTimeout=300000
+jdbc.pool.connectionTimeout=20000
+jdbc.pool.connectionTestQuery=SELECT 1
+
+# 日志配置
+logging.level.root=INFO
+logging.level.ltd.qubit.survey=DEBUG
+logging.level.org.springframework=INFO
+logging.level.org.mybatis=DEBUG
\ No newline at end of file
diff --git a/backend/src/main/resources/mybatis/mapper/OptionMapper.xml b/backend/src/main/resources/mybatis/mapper/OptionMapper.xml
new file mode 100644
index 0000000..51ae85e
--- /dev/null
+++ b/backend/src/main/resources/mybatis/mapper/OptionMapper.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.OptionDao">
+    <!-- 结果映射 -->
+    <resultMap id="optionMap" type="ltd.qubit.survey.model.Option">
+        <id property="id" column="id"/>
+        <result property="questionId" column="question_id"/>
+        <result property="optionCode" column="option_code"/>
+        <result property="content" column="content"/>
+        <result property="requiresText" column="requires_text"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, question_id, option_code, content, requires_text, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.Option" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO options (question_id, option_code, content, requires_text)
+        VALUES (#{questionId}, #{optionCode}, #{content}, #{requiresText})
+    </insert>
+
+    <!-- 批量插入 -->
+    <insert id="batchInsert" parameterType="java.util.List">
+        INSERT INTO options (question_id, option_code, content, requires_text)
+        VALUES
+        <foreach collection="list" item="item" separator=",">
+            (#{item.questionId}, #{item.optionCode}, #{item.content}, #{item.requiresText})
+        </foreach>
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.Option">
+        UPDATE options
+        SET question_id = #{questionId},
+            option_code = #{optionCode},
+            content = #{content},
+            requires_text = #{requiresText}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM options WHERE id = #{id}
+    </delete>
+
+    <!-- 根据问题ID删除 -->
+    <delete id="deleteByQuestionId" parameterType="long">
+        DELETE FROM options WHERE question_id = #{questionId}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        ORDER BY question_id, option_code
+    </select>
+
+    <!-- 根据问题ID查询 -->
+    <select id="findByQuestionId" parameterType="long" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE question_id = #{questionId}
+        ORDER BY option_code
+    </select>
+
+    <!-- 根据问题ID和选项代码查询 -->
+    <select id="findByQuestionIdAndCode" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE question_id = #{questionId}
+        AND option_code = #{optionCode}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/backend/src/main/resources/mybatis/mapper/QuestionMapper.xml b/backend/src/main/resources/mybatis/mapper/QuestionMapper.xml
new file mode 100644
index 0000000..4d3d902
--- /dev/null
+++ b/backend/src/main/resources/mybatis/mapper/QuestionMapper.xml
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.QuestionDao">
+    <!-- 结果映射 -->
+    <resultMap id="questionMap" type="ltd.qubit.survey.model.Question">
+        <id property="id" column="id"/>
+        <result property="questionNumber" column="question_number"/>
+        <result property="content" column="content"/>
+        <result property="questionType" column="question_type"/>
+        <result property="workArea" column="work_area"/>
+        <result property="isRequired" column="is_required"/>
+        <result property="nextQuestionLogic" column="next_question_logic"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, question_number, content, question_type, work_area, is_required, next_question_logic, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.Question" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO questions (question_number, content, question_type, work_area, is_required, next_question_logic)
+        VALUES (#{questionNumber}, #{content}, #{questionType}, #{workArea}, #{isRequired}, #{nextQuestionLogic})
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.Question">
+        UPDATE questions
+        SET question_number = #{questionNumber},
+            content = #{content},
+            question_type = #{questionType},
+            work_area = #{workArea},
+            is_required = #{isRequired},
+            next_question_logic = #{nextQuestionLogic}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM questions WHERE id = #{id}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        ORDER BY question_number
+    </select>
+
+    <!-- 根据问题序号查询 -->
+    <select id="findByQuestionNumber" parameterType="int" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE question_number = #{questionNumber}
+    </select>
+
+    <!-- 根据工作领域查询 -->
+    <select id="findByWorkArea" parameterType="string" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE work_area = #{workArea}
+        ORDER BY question_number
+    </select>
+
+    <!-- 查询通用问题 -->
+    <select id="findCommonQuestions" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE work_area IS NULL
+        ORDER BY question_number
+    </select>
+
+    <!-- 获取下一个问题序号 -->
+    <select id="getNextQuestionNumber" resultType="int">
+        SELECT COALESCE(MAX(question_number) + 1, 1)
+        FROM questions
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/backend/src/main/resources/mybatis/mapper/SurveyResponseMapper.xml b/backend/src/main/resources/mybatis/mapper/SurveyResponseMapper.xml
new file mode 100644
index 0000000..c7b0430
--- /dev/null
+++ b/backend/src/main/resources/mybatis/mapper/SurveyResponseMapper.xml
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.SurveyResponseDao">
+    <!-- 结果映射 -->
+    <resultMap id="responseMap" type="ltd.qubit.survey.model.SurveyResponse">
+        <id property="id" column="id"/>
+        <result property="userId" column="user_id"/>
+        <result property="questionId" column="question_id"/>
+        <result property="selectedOptions" column="selected_options" typeHandler="org.apache.ibatis.type.JsonTypeHandler"/>
+        <result property="textAnswer" column="text_answer"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, user_id, question_id, selected_options, text_answer, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.SurveyResponse" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO survey_responses (user_id, question_id, selected_options, text_answer)
+        VALUES (#{userId}, #{questionId}, #{selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler}, #{textAnswer})
+    </insert>
+
+    <!-- 批量插入 -->
+    <insert id="batchInsert" parameterType="java.util.List">
+        INSERT INTO survey_responses (user_id, question_id, selected_options, text_answer)
+        VALUES
+        <foreach collection="list" item="item" separator=",">
+            (#{item.userId}, #{item.questionId},
+             #{item.selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler},
+             #{item.textAnswer})
+        </foreach>
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.SurveyResponse">
+        UPDATE survey_responses
+        SET user_id = #{userId},
+            question_id = #{questionId},
+            selected_options = #{selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler},
+            text_answer = #{textAnswer}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM survey_responses WHERE id = #{id}
+    </delete>
+
+    <!-- 根据用户ID删除 -->
+    <delete id="deleteByUserId" parameterType="long">
+        DELETE FROM survey_responses WHERE user_id = #{userId}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        ORDER BY user_id, question_id
+    </select>
+
+    <!-- 根据用户ID查询 -->
+    <select id="findByUserId" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE user_id = #{userId}
+        ORDER BY question_id
+    </select>
+
+    <!-- 根据问题ID查询 -->
+    <select id="findByQuestionId" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE question_id = #{questionId}
+        ORDER BY user_id
+    </select>
+
+    <!-- 根据用户ID和问题ID查询 -->
+    <select id="findByUserIdAndQuestionId" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE user_id = #{userId}
+        AND question_id = #{questionId}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/backend/src/main/resources/mybatis/mapper/UserMapper.xml b/backend/src/main/resources/mybatis/mapper/UserMapper.xml
new file mode 100644
index 0000000..da8010d
--- /dev/null
+++ b/backend/src/main/resources/mybatis/mapper/UserMapper.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.UserDao">
+    <!-- 结果映射 -->
+    <resultMap id="userMap" type="ltd.qubit.survey.model.User">
+        <id property="id" column="id"/>
+        <result property="name" column="name"/>
+        <result property="phone" column="phone"/>
+        <result property="workArea" column="work_area"/>
+        <result property="positionType" column="position_type"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, name, phone, work_area, position_type, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.User" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO users (name, phone, work_area, position_type)
+        VALUES (#{name}, #{phone}, #{workArea}, #{positionType})
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.User">
+        UPDATE users
+        SET name = #{name},
+            phone = #{phone},
+            work_area = #{workArea},
+            position_type = #{positionType}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM users WHERE id = #{id}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        ORDER BY id
+    </select>
+
+    <!-- 根据手机号查询 -->
+    <select id="findByPhone" parameterType="string" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE phone = #{phone}
+    </select>
+
+    <!-- 根据工作领域查询 -->
+    <select id="findByWorkArea" parameterType="string" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE work_area = #{workArea}
+        ORDER BY id
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/backend/src/main/resources/mybatis/mybatis-config.xml b/backend/src/main/resources/mybatis/mybatis-config.xml
new file mode 100644
index 0000000..59d59f2
--- /dev/null
+++ b/backend/src/main/resources/mybatis/mybatis-config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
+<configuration>
+    <settings>
+        <!-- 开启驼峰命名自动映射 -->
+        <setting name="mapUnderscoreToCamelCase" value="true"/>
+        <!-- 开启二级缓存 -->
+        <setting name="cacheEnabled" value="true"/>
+        <!-- 开启延迟加载 -->
+        <setting name="lazyLoadingEnabled" value="true"/>
+        <!-- 设置日志实现 -->
+        <setting name="logImpl" value="SLF4J"/>
+    </settings>
+
+    <typeHandlers>
+        <!-- 枚举类型处理器 -->
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.WorkArea"/>
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.PositionType"/>
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.QuestionType"/>
+    </typeHandlers>
+
+    <mappers>
+        <!-- 映射文件 -->
+        <mapper resource="mybatis/mapper/UserMapper.xml"/>
+        <mapper resource="mybatis/mapper/QuestionMapper.xml"/>
+        <mapper resource="mybatis/mapper/OptionMapper.xml"/>
+        <mapper resource="mybatis/mapper/SurveyResponseMapper.xml"/>
+    </mappers>
+</configuration>
\ No newline at end of file
diff --git a/backend/src/main/resources/spring/applicationContext.xml b/backend/src/main/resources/spring/applicationContext.xml
new file mode 100644
index 0000000..96c3210
--- /dev/null
+++ b/backend/src/main/resources/spring/applicationContext.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xmlns:tx="http://www.springframework.org/schema/tx"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/context
+       http://www.springframework.org/schema/context/spring-context.xsd
+       http://www.springframework.org/schema/tx
+       http://www.springframework.org/schema/tx/spring-tx.xsd">
+
+    <!-- 加载属性文件 -->
+    <context:property-placeholder location="classpath:application.properties"/>
+
+    <!-- 开启注解扫描，排除Controller -->
+    <context:component-scan base-package="ltd.qubit.survey">
+        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+    </context:component-scan>
+
+    <!-- 配置事务注解驱动 -->
+    <tx:annotation-driven/>
+
+</beans>
\ No newline at end of file
diff --git a/backend/src/main/resources/spring/spring-mvc.xml b/backend/src/main/resources/spring/spring-mvc.xml
new file mode 100644
index 0000000..efabb13
--- /dev/null
+++ b/backend/src/main/resources/spring/spring-mvc.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xmlns:mvc="http://www.springframework.org/schema/mvc"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/context
+       http://www.springframework.org/schema/context/spring-context.xsd
+       http://www.springframework.org/schema/mvc
+       http://www.springframework.org/schema/mvc/spring-mvc.xsd">
+
+    <!-- 开启Controller注解扫描 -->
+    <context:component-scan base-package="ltd.qubit.survey.controller" use-default-filters="false">
+        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+    </context:component-scan>
+
+    <!-- 开启SpringMVC注解驱动 -->
+    <mvc:annotation-driven>
+        <mvc:message-converters>
+            <!-- 配置JSON转换器 -->
+            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
+                <property name="objectMapper">
+                    <bean class="com.fasterxml.jackson.databind.ObjectMapper">
+                        <property name="dateFormat">
+                            <bean class="java.text.SimpleDateFormat">
+                                <constructor-arg value="yyyy-MM-dd HH:mm:ss"/>
+                            </bean>
+                        </property>
+                    </bean>
+                </property>
+            </bean>
+        </mvc:message-converters>
+    </mvc:annotation-driven>
+
+    <!-- 配置跨域支持 -->
+    <mvc:cors>
+        <mvc:mapping path="/**"
+                    allowed-origins="*"
+                    allowed-methods="GET,POST,PUT,DELETE,OPTIONS"
+                    allowed-headers="Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers"
+                    allow-credentials="true"
+                    max-age="3600"/>
+    </mvc:cors>
+
+</beans>
\ No newline at end of file
diff --git a/backend/src/main/resources/spring/spring-mybatis.xml b/backend/src/main/resources/spring/spring-mybatis.xml
new file mode 100644
index 0000000..8c7889f
--- /dev/null
+++ b/backend/src/main/resources/spring/spring-mybatis.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd">
+
+    <!-- 配置数据源 -->
+    <bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
+        <property name="driverClassName" value="${jdbc.driver}"/>
+        <property name="jdbcUrl" value="${jdbc.url}"/>
+        <property name="username" value="${jdbc.username}"/>
+        <property name="password" value="${jdbc.password}"/>
+        <!-- 连接池配置 -->
+        <property name="minimumIdle" value="${jdbc.pool.minimumIdle}"/>
+        <property name="maximumPoolSize" value="${jdbc.pool.maximumPoolSize}"/>
+        <property name="idleTimeout" value="${jdbc.pool.idleTimeout}"/>
+        <property name="connectionTimeout" value="${jdbc.pool.connectionTimeout}"/>
+        <property name="connectionTestQuery" value="${jdbc.pool.connectionTestQuery}"/>
+    </bean>
+
+    <!-- 配置SqlSessionFactory -->
+    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
+        <property name="dataSource" ref="dataSource"/>
+        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
+        <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"/>
+    </bean>
+
+    <!-- 配置Mapper扫描器 -->
+    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
+        <property name="basePackage" value="ltd.qubit.survey.dao"/>
+        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
+    </bean>
+
+    <!-- 配置事务管理器 -->
+    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
+        <property name="dataSource" ref="dataSource"/>
+    </bean>
+
+</beans>
diff --git a/backend/src/main/webapp/WEB-INF/web.xml b/backend/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000..6662b81
--- /dev/null
+++ b/backend/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
+         http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
+         version="4.0">
+
+    <display-name>LLM Survey API</display-name>
+
+    <!-- Spring配置文件位置 -->
+    <context-param>
+        <param-name>contextConfigLocation</param-name>
+        <param-value>
+            classpath:spring/applicationContext.xml
+            classpath:spring/spring-mybatis.xml
+        </param-value>
+    </context-param>
+
+    <!-- Spring监听器 -->
+    <listener>
+        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
+    </listener>
+
+    <!-- Spring MVC Servlet -->
+    <servlet>
+        <servlet-name>springmvc</servlet-name>
+        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
+        <init-param>
+            <param-name>contextConfigLocation</param-name>
+            <param-value>classpath:spring/spring-mvc.xml</param-value>
+        </init-param>
+        <load-on-startup>1</load-on-startup>
+    </servlet>
+
+    <servlet-mapping>
+        <servlet-name>springmvc</servlet-name>
+        <url-pattern>/</url-pattern>
+    </servlet-mapping>
+
+    <!-- 字符编码过滤器 -->
+    <filter>
+        <filter-name>characterEncodingFilter</filter-name>
+        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
+        <init-param>
+            <param-name>encoding</param-name>
+            <param-value>UTF-8</param-value>
+        </init-param>
+        <init-param>
+            <param-name>forceEncoding</param-name>
+            <param-value>true</param-value>
+        </init-param>
+    </filter>
+    <filter-mapping>
+        <filter-name>characterEncodingFilter</filter-name>
+        <url-pattern>/*</url-pattern>
+    </filter-mapping>
+</web-app>
\ No newline at end of file
diff --git a/backend/target/classes/application.properties b/backend/target/classes/application.properties
new file mode 100644
index 0000000..df235fd
--- /dev/null
+++ b/backend/target/classes/application.properties
@@ -0,0 +1,18 @@
+# 数据库配置
+jdbc.driver=com.mysql.cj.jdbc.Driver
+jdbc.url=jdbc:mysql://127.0.0.1:3306/llm_survey?useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
+jdbc.username=dev
+jdbc.password=
+
+# 连接池配置
+jdbc.pool.minimumIdle=5
+jdbc.pool.maximumPoolSize=20
+jdbc.pool.idleTimeout=300000
+jdbc.pool.connectionTimeout=20000
+jdbc.pool.connectionTestQuery=SELECT 1
+
+# 日志配置
+logging.level.root=INFO
+logging.level.ltd.qubit.survey=DEBUG
+logging.level.org.springframework=INFO
+logging.level.org.mybatis=DEBUG
\ No newline at end of file
diff --git a/backend/target/classes/ltd/qubit/survey/controller/GlobalExceptionHandler.class b/backend/target/classes/ltd/qubit/survey/controller/GlobalExceptionHandler.class
new file mode 100644
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diff --git a/backend/target/classes/ltd/qubit/survey/controller/SurveyController.class b/backend/target/classes/ltd/qubit/survey/controller/SurveyController.class
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diff --git a/backend/target/classes/ltd/qubit/survey/dao/OptionDao.class b/backend/target/classes/ltd/qubit/survey/dao/OptionDao.class
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diff --git a/backend/target/classes/ltd/qubit/survey/dao/SurveyResponseDao.class b/backend/target/classes/ltd/qubit/survey/dao/SurveyResponseDao.class
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diff --git a/backend/target/classes/ltd/qubit/survey/dao/UserDao.class b/backend/target/classes/ltd/qubit/survey/dao/UserDao.class
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diff --git a/backend/target/classes/ltd/qubit/survey/model/ErrorInfo.class b/backend/target/classes/ltd/qubit/survey/model/ErrorInfo.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/BaseService.class b/backend/target/classes/ltd/qubit/survey/service/BaseService.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/OptionService.class b/backend/target/classes/ltd/qubit/survey/service/OptionService.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/QuestionService.class b/backend/target/classes/ltd/qubit/survey/service/QuestionService.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/SurveyResponseService.class b/backend/target/classes/ltd/qubit/survey/service/SurveyResponseService.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/UserService.class b/backend/target/classes/ltd/qubit/survey/service/UserService.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/impl/OptionServiceImpl.class b/backend/target/classes/ltd/qubit/survey/service/impl/OptionServiceImpl.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl.class b/backend/target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.class b/backend/target/classes/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.class
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diff --git a/backend/target/classes/ltd/qubit/survey/service/impl/UserServiceImpl.class b/backend/target/classes/ltd/qubit/survey/service/impl/UserServiceImpl.class
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diff --git a/backend/target/classes/mybatis/mapper/OptionMapper.xml b/backend/target/classes/mybatis/mapper/OptionMapper.xml
new file mode 100644
index 0000000..51ae85e
--- /dev/null
+++ b/backend/target/classes/mybatis/mapper/OptionMapper.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.OptionDao">
+    <!-- 结果映射 -->
+    <resultMap id="optionMap" type="ltd.qubit.survey.model.Option">
+        <id property="id" column="id"/>
+        <result property="questionId" column="question_id"/>
+        <result property="optionCode" column="option_code"/>
+        <result property="content" column="content"/>
+        <result property="requiresText" column="requires_text"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, question_id, option_code, content, requires_text, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.Option" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO options (question_id, option_code, content, requires_text)
+        VALUES (#{questionId}, #{optionCode}, #{content}, #{requiresText})
+    </insert>
+
+    <!-- 批量插入 -->
+    <insert id="batchInsert" parameterType="java.util.List">
+        INSERT INTO options (question_id, option_code, content, requires_text)
+        VALUES
+        <foreach collection="list" item="item" separator=",">
+            (#{item.questionId}, #{item.optionCode}, #{item.content}, #{item.requiresText})
+        </foreach>
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.Option">
+        UPDATE options
+        SET question_id = #{questionId},
+            option_code = #{optionCode},
+            content = #{content},
+            requires_text = #{requiresText}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM options WHERE id = #{id}
+    </delete>
+
+    <!-- 根据问题ID删除 -->
+    <delete id="deleteByQuestionId" parameterType="long">
+        DELETE FROM options WHERE question_id = #{questionId}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        ORDER BY question_id, option_code
+    </select>
+
+    <!-- 根据问题ID查询 -->
+    <select id="findByQuestionId" parameterType="long" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE question_id = #{questionId}
+        ORDER BY option_code
+    </select>
+
+    <!-- 根据问题ID和选项代码查询 -->
+    <select id="findByQuestionIdAndCode" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE question_id = #{questionId}
+        AND option_code = #{optionCode}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/backend/target/classes/mybatis/mapper/QuestionMapper.xml b/backend/target/classes/mybatis/mapper/QuestionMapper.xml
new file mode 100644
index 0000000..4d3d902
--- /dev/null
+++ b/backend/target/classes/mybatis/mapper/QuestionMapper.xml
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.QuestionDao">
+    <!-- 结果映射 -->
+    <resultMap id="questionMap" type="ltd.qubit.survey.model.Question">
+        <id property="id" column="id"/>
+        <result property="questionNumber" column="question_number"/>
+        <result property="content" column="content"/>
+        <result property="questionType" column="question_type"/>
+        <result property="workArea" column="work_area"/>
+        <result property="isRequired" column="is_required"/>
+        <result property="nextQuestionLogic" column="next_question_logic"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, question_number, content, question_type, work_area, is_required, next_question_logic, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.Question" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO questions (question_number, content, question_type, work_area, is_required, next_question_logic)
+        VALUES (#{questionNumber}, #{content}, #{questionType}, #{workArea}, #{isRequired}, #{nextQuestionLogic})
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.Question">
+        UPDATE questions
+        SET question_number = #{questionNumber},
+            content = #{content},
+            question_type = #{questionType},
+            work_area = #{workArea},
+            is_required = #{isRequired},
+            next_question_logic = #{nextQuestionLogic}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM questions WHERE id = #{id}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        ORDER BY question_number
+    </select>
+
+    <!-- 根据问题序号查询 -->
+    <select id="findByQuestionNumber" parameterType="int" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE question_number = #{questionNumber}
+    </select>
+
+    <!-- 根据工作领域查询 -->
+    <select id="findByWorkArea" parameterType="string" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE work_area = #{workArea}
+        ORDER BY question_number
+    </select>
+
+    <!-- 查询通用问题 -->
+    <select id="findCommonQuestions" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE work_area IS NULL
+        ORDER BY question_number
+    </select>
+
+    <!-- 获取下一个问题序号 -->
+    <select id="getNextQuestionNumber" resultType="int">
+        SELECT COALESCE(MAX(question_number) + 1, 1)
+        FROM questions
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/backend/target/classes/mybatis/mapper/SurveyResponseMapper.xml b/backend/target/classes/mybatis/mapper/SurveyResponseMapper.xml
new file mode 100644
index 0000000..c7b0430
--- /dev/null
+++ b/backend/target/classes/mybatis/mapper/SurveyResponseMapper.xml
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.SurveyResponseDao">
+    <!-- 结果映射 -->
+    <resultMap id="responseMap" type="ltd.qubit.survey.model.SurveyResponse">
+        <id property="id" column="id"/>
+        <result property="userId" column="user_id"/>
+        <result property="questionId" column="question_id"/>
+        <result property="selectedOptions" column="selected_options" typeHandler="org.apache.ibatis.type.JsonTypeHandler"/>
+        <result property="textAnswer" column="text_answer"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, user_id, question_id, selected_options, text_answer, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.SurveyResponse" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO survey_responses (user_id, question_id, selected_options, text_answer)
+        VALUES (#{userId}, #{questionId}, #{selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler}, #{textAnswer})
+    </insert>
+
+    <!-- 批量插入 -->
+    <insert id="batchInsert" parameterType="java.util.List">
+        INSERT INTO survey_responses (user_id, question_id, selected_options, text_answer)
+        VALUES
+        <foreach collection="list" item="item" separator=",">
+            (#{item.userId}, #{item.questionId},
+             #{item.selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler},
+             #{item.textAnswer})
+        </foreach>
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.SurveyResponse">
+        UPDATE survey_responses
+        SET user_id = #{userId},
+            question_id = #{questionId},
+            selected_options = #{selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler},
+            text_answer = #{textAnswer}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM survey_responses WHERE id = #{id}
+    </delete>
+
+    <!-- 根据用户ID删除 -->
+    <delete id="deleteByUserId" parameterType="long">
+        DELETE FROM survey_responses WHERE user_id = #{userId}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        ORDER BY user_id, question_id
+    </select>
+
+    <!-- 根据用户ID查询 -->
+    <select id="findByUserId" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE user_id = #{userId}
+        ORDER BY question_id
+    </select>
+
+    <!-- 根据问题ID查询 -->
+    <select id="findByQuestionId" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE question_id = #{questionId}
+        ORDER BY user_id
+    </select>
+
+    <!-- 根据用户ID和问题ID查询 -->
+    <select id="findByUserIdAndQuestionId" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE user_id = #{userId}
+        AND question_id = #{questionId}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/backend/target/classes/mybatis/mapper/UserMapper.xml b/backend/target/classes/mybatis/mapper/UserMapper.xml
new file mode 100644
index 0000000..da8010d
--- /dev/null
+++ b/backend/target/classes/mybatis/mapper/UserMapper.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.UserDao">
+    <!-- 结果映射 -->
+    <resultMap id="userMap" type="ltd.qubit.survey.model.User">
+        <id property="id" column="id"/>
+        <result property="name" column="name"/>
+        <result property="phone" column="phone"/>
+        <result property="workArea" column="work_area"/>
+        <result property="positionType" column="position_type"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, name, phone, work_area, position_type, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.User" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO users (name, phone, work_area, position_type)
+        VALUES (#{name}, #{phone}, #{workArea}, #{positionType})
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.User">
+        UPDATE users
+        SET name = #{name},
+            phone = #{phone},
+            work_area = #{workArea},
+            position_type = #{positionType}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM users WHERE id = #{id}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        ORDER BY id
+    </select>
+
+    <!-- 根据手机号查询 -->
+    <select id="findByPhone" parameterType="string" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE phone = #{phone}
+    </select>
+
+    <!-- 根据工作领域查询 -->
+    <select id="findByWorkArea" parameterType="string" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE work_area = #{workArea}
+        ORDER BY id
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/backend/target/classes/mybatis/mybatis-config.xml b/backend/target/classes/mybatis/mybatis-config.xml
new file mode 100644
index 0000000..59d59f2
--- /dev/null
+++ b/backend/target/classes/mybatis/mybatis-config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
+<configuration>
+    <settings>
+        <!-- 开启驼峰命名自动映射 -->
+        <setting name="mapUnderscoreToCamelCase" value="true"/>
+        <!-- 开启二级缓存 -->
+        <setting name="cacheEnabled" value="true"/>
+        <!-- 开启延迟加载 -->
+        <setting name="lazyLoadingEnabled" value="true"/>
+        <!-- 设置日志实现 -->
+        <setting name="logImpl" value="SLF4J"/>
+    </settings>
+
+    <typeHandlers>
+        <!-- 枚举类型处理器 -->
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.WorkArea"/>
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.PositionType"/>
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.QuestionType"/>
+    </typeHandlers>
+
+    <mappers>
+        <!-- 映射文件 -->
+        <mapper resource="mybatis/mapper/UserMapper.xml"/>
+        <mapper resource="mybatis/mapper/QuestionMapper.xml"/>
+        <mapper resource="mybatis/mapper/OptionMapper.xml"/>
+        <mapper resource="mybatis/mapper/SurveyResponseMapper.xml"/>
+    </mappers>
+</configuration>
\ No newline at end of file
diff --git a/backend/target/classes/spring/applicationContext.xml b/backend/target/classes/spring/applicationContext.xml
new file mode 100644
index 0000000..96c3210
--- /dev/null
+++ b/backend/target/classes/spring/applicationContext.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xmlns:tx="http://www.springframework.org/schema/tx"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/context
+       http://www.springframework.org/schema/context/spring-context.xsd
+       http://www.springframework.org/schema/tx
+       http://www.springframework.org/schema/tx/spring-tx.xsd">
+
+    <!-- 加载属性文件 -->
+    <context:property-placeholder location="classpath:application.properties"/>
+
+    <!-- 开启注解扫描，排除Controller -->
+    <context:component-scan base-package="ltd.qubit.survey">
+        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+    </context:component-scan>
+
+    <!-- 配置事务注解驱动 -->
+    <tx:annotation-driven/>
+
+</beans>
\ No newline at end of file
diff --git a/backend/target/classes/spring/spring-mvc.xml b/backend/target/classes/spring/spring-mvc.xml
new file mode 100644
index 0000000..efabb13
--- /dev/null
+++ b/backend/target/classes/spring/spring-mvc.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xmlns:mvc="http://www.springframework.org/schema/mvc"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/context
+       http://www.springframework.org/schema/context/spring-context.xsd
+       http://www.springframework.org/schema/mvc
+       http://www.springframework.org/schema/mvc/spring-mvc.xsd">
+
+    <!-- 开启Controller注解扫描 -->
+    <context:component-scan base-package="ltd.qubit.survey.controller" use-default-filters="false">
+        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+    </context:component-scan>
+
+    <!-- 开启SpringMVC注解驱动 -->
+    <mvc:annotation-driven>
+        <mvc:message-converters>
+            <!-- 配置JSON转换器 -->
+            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
+                <property name="objectMapper">
+                    <bean class="com.fasterxml.jackson.databind.ObjectMapper">
+                        <property name="dateFormat">
+                            <bean class="java.text.SimpleDateFormat">
+                                <constructor-arg value="yyyy-MM-dd HH:mm:ss"/>
+                            </bean>
+                        </property>
+                    </bean>
+                </property>
+            </bean>
+        </mvc:message-converters>
+    </mvc:annotation-driven>
+
+    <!-- 配置跨域支持 -->
+    <mvc:cors>
+        <mvc:mapping path="/**"
+                    allowed-origins="*"
+                    allowed-methods="GET,POST,PUT,DELETE,OPTIONS"
+                    allowed-headers="Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers"
+                    allow-credentials="true"
+                    max-age="3600"/>
+    </mvc:cors>
+
+</beans>
\ No newline at end of file
diff --git a/backend/target/classes/spring/spring-mybatis.xml b/backend/target/classes/spring/spring-mybatis.xml
new file mode 100644
index 0000000..8c7889f
--- /dev/null
+++ b/backend/target/classes/spring/spring-mybatis.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd">
+
+    <!-- 配置数据源 -->
+    <bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
+        <property name="driverClassName" value="${jdbc.driver}"/>
+        <property name="jdbcUrl" value="${jdbc.url}"/>
+        <property name="username" value="${jdbc.username}"/>
+        <property name="password" value="${jdbc.password}"/>
+        <!-- 连接池配置 -->
+        <property name="minimumIdle" value="${jdbc.pool.minimumIdle}"/>
+        <property name="maximumPoolSize" value="${jdbc.pool.maximumPoolSize}"/>
+        <property name="idleTimeout" value="${jdbc.pool.idleTimeout}"/>
+        <property name="connectionTimeout" value="${jdbc.pool.connectionTimeout}"/>
+        <property name="connectionTestQuery" value="${jdbc.pool.connectionTestQuery}"/>
+    </bean>
+
+    <!-- 配置SqlSessionFactory -->
+    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
+        <property name="dataSource" ref="dataSource"/>
+        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
+        <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"/>
+    </bean>
+
+    <!-- 配置Mapper扫描器 -->
+    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
+        <property name="basePackage" value="ltd.qubit.survey.dao"/>
+        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
+    </bean>
+
+    <!-- 配置事务管理器 -->
+    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
+        <property name="dataSource" ref="dataSource"/>
+    </bean>
+
+</beans>
diff --git a/backend/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/backend/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
new file mode 100644
index 0000000..df03b31
--- /dev/null
+++ b/backend/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
@@ -0,0 +1,27 @@
+ltd/qubit/survey/controller/GlobalExceptionHandler.class
+ltd/qubit/survey/dao/QuestionDao.class
+ltd/qubit/survey/model/PositionType.class
+ltd/qubit/survey/service/OptionService.class
+ltd/qubit/survey/controller/UserController.class
+ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.class
+ltd/qubit/survey/dao/SurveyResponseDao.class
+ltd/qubit/survey/dao/OptionDao.class
+ltd/qubit/survey/controller/QuestionController.class
+ltd/qubit/survey/service/impl/UserServiceImpl.class
+ltd/qubit/survey/service/impl/QuestionServiceImpl.class
+ltd/qubit/survey/model/SurveyResponse.class
+ltd/qubit/survey/model/User.class
+ltd/qubit/survey/service/QuestionService.class
+ltd/qubit/survey/service/impl/QuestionServiceImpl$1.class
+ltd/qubit/survey/service/UserService.class
+ltd/qubit/survey/dao/BaseDao.class
+ltd/qubit/survey/service/impl/OptionServiceImpl.class
+ltd/qubit/survey/dao/UserDao.class
+ltd/qubit/survey/model/ErrorInfo.class
+ltd/qubit/survey/controller/SurveyController.class
+ltd/qubit/survey/model/Question.class
+ltd/qubit/survey/model/WorkArea.class
+ltd/qubit/survey/service/SurveyResponseService.class
+ltd/qubit/survey/model/Option.class
+ltd/qubit/survey/model/QuestionType.class
+ltd/qubit/survey/service/BaseService.class
diff --git a/backend/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/backend/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
new file mode 100644
index 0000000..4678e84
--- /dev/null
+++ b/backend/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
@@ -0,0 +1,26 @@
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/QuestionDao.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/UserService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/OptionService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/Question.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/QuestionService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/BaseService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/User.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/Option.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/QuestionType.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/UserDao.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/SurveyResponse.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/ErrorInfo.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/controller/UserController.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/controller/QuestionController.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/WorkArea.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/PositionType.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/BaseDao.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/controller/SurveyController.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/OptionDao.java
diff --git a/database/init_database.sh b/database/init_database.sh
new file mode 100755
index 0000000..8546f7c
--- /dev/null
+++ b/database/init_database.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# 获取脚本所在目录的绝对路径
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+# 检查mysql命令是否可用
+if ! command -v mysql &> /dev/null; then
+    echo "Error: mysql command not found"
+    exit 1
+fi
+
+# 数据库连接信息
+DB_HOST="127.0.0.1"
+DB_USER="dev"
+DB_NAME="llm_survey"
+
+echo "开始初始化数据库..."
+
+# 执行SQL脚本
+mysql -h"$DB_HOST" -u"$DB_USER" < "$SCRIPT_DIR/init_database.sql"
+
+if [ $? -eq 0 ]; then
+    echo "数据库初始化成功！"
+    echo "数据库名称: $DB_NAME"
+    echo "数据库地址: $DB_HOST"
+    echo "数据库用户: $DB_USER"
+else
+    echo "数据库初始化失败！"
+    exit 1
+fi
\ No newline at end of file
diff --git a/database/init_database.sql b/database/init_database.sql
new file mode 100644
index 0000000..6e7c018
--- /dev/null
+++ b/database/init_database.sql
@@ -0,0 +1,73 @@
+-- 创建数据库
+CREATE DATABASE IF NOT EXISTS llm_survey DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+USE llm_survey;
+
+-- 创建用户表
+CREATE TABLE IF NOT EXISTS users (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT,
+    name VARCHAR(50) NOT NULL COMMENT '姓名',
+    phone VARCHAR(20) NOT NULL COMMENT '手机号码',
+    work_area VARCHAR(20) NOT NULL COMMENT '工作领域',
+    position_type VARCHAR(20) NOT NULL COMMENT '岗位性质',
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    UNIQUE KEY uk_phone (phone)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户信息表';
+
+-- 创建问题表
+CREATE TABLE IF NOT EXISTS questions (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT,
+    question_number INT NOT NULL COMMENT '问题序号',
+    content TEXT NOT NULL COMMENT '问题内容',
+    question_type VARCHAR(20) NOT NULL COMMENT '问题类型',
+    work_area VARCHAR(20) COMMENT '针对的工作领域（NULL表示通用问题）',
+    is_required BOOLEAN DEFAULT TRUE COMMENT '是否必答',
+    next_question_logic JSON COMMENT '跳转逻辑',
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    UNIQUE KEY uk_question_number (question_number)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='问题表';
+
+-- 创建选项表
+CREATE TABLE IF NOT EXISTS options (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT,
+    question_id BIGINT NOT NULL COMMENT '关联的问题ID',
+    option_code VARCHAR(10) NOT NULL COMMENT '选项代码（如A、B、C）',
+    content TEXT NOT NULL COMMENT '选项内容',
+    requires_text BOOLEAN DEFAULT FALSE COMMENT '是否需要填写文本',
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (question_id) REFERENCES questions(id),
+    UNIQUE KEY uk_question_option (question_id, option_code)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='问题选项表';
+
+-- 创建答案表
+CREATE TABLE IF NOT EXISTS survey_responses (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT,
+    user_id BIGINT NOT NULL COMMENT '用户ID',
+    question_id BIGINT NOT NULL COMMENT '问题ID',
+    selected_options JSON COMMENT '选中的选项代码列表',
+    text_answer TEXT COMMENT '文本答案',
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id),
+    FOREIGN KEY (question_id) REFERENCES questions(id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='问卷答案表';
+
+-- 插入基础问题数据
+INSERT INTO questions (question_number, content, question_type, is_required) VALUES
+(1, '您的工作领域', 'SINGLE_CHOICE', TRUE),
+(2, '岗位性质', 'SINGLE_CHOICE', TRUE);
+
+-- 插入基础选项数据
+INSERT INTO options (question_id, option_code, content) VALUES
+(1, 'A', '研发'),
+(1, 'B', '项目'),
+(1, 'C', '保险'),
+(1, 'D', '财务'),
+(1, 'E', '运营'),
+(1, 'F', '客服'),
+(1, 'G', '综合管理');
+
+INSERT INTO options (question_id, option_code, content) VALUES
+(2, 'A', '管理岗'),
+(2, 'B', '技术岗'),
+(2, 'C', '业务岗'),
+(2, 'D', '职能支持岗');
\ No newline at end of file
diff --git a/doc/api.md b/doc/api.md
new file mode 100644
index 0000000..70e1e6f
--- /dev/null
+++ b/doc/api.md
@@ -0,0 +1,163 @@
+# 在线调查问卷系统 API 文档
+
+## 1. 数据结构
+
+### 1.1 用户信息 (User)
+```json
+{
+    "id": "Long",
+    "name": "String",         // 姓名
+    "phone": "String",        // 手机号码
+    "workArea": "String",     // 工作领域: RD/PROJECT/INSURANCE/FINANCE/OPERATION/CUSTOMER_SERVICE/ADMIN
+    "positionType": "String", // 岗位性质: MANAGEMENT/TECHNICAL/BUSINESS/SUPPORT
+    "createdAt": "DateTime"   // 创建时间
+}
+```
+
+### 1.2 问题 (Question)
+```json
+{
+    "id": "Long",
+    "questionNumber": "Integer",  // 问题序号
+    "content": "String",         // 问题内容
+    "questionType": "String",    // 问题类型: SINGLE_CHOICE/MULTIPLE_CHOICE/TEXT
+    "workArea": "String",        // 针对的工作领域（null表示通用问题）
+    "isRequired": "Boolean",     // 是否必答
+    "nextQuestionLogic": "JSON", // 跳转逻辑
+    "createdAt": "DateTime"      // 创建时间
+}
+```
+
+### 1.3 选项 (Option)
+```json
+{
+    "id": "Long",
+    "questionId": "Long",       // 关联的问题ID
+    "optionCode": "String",     // 选项代码（如A、B、C）
+    "content": "String",        // 选项内容
+    "requiresText": "Boolean",  // 是否需要填写文本
+    "createdAt": "DateTime"     // 创建时间
+}
+```
+
+### 1.4 问卷答案 (SurveyResponse)
+```json
+{
+    "id": "Long",
+    "userId": "Long",           // 用户ID
+    "questionId": "Long",       // 问题ID
+    "selectedOptions": "List<String>", // 选中的选项代码列表
+    "textAnswer": "String",     // 文本答案
+    "createdAt": "DateTime"     // 创建时间
+}
+```
+
+### 1.5 错误信息 (ErrorInfo)
+```json
+{
+    "code": "String",          // 错误代码
+    "message": "String",       // 错误消息
+    "detail": "String",        // 错误详情
+    "timestamp": "Long",       // 时间戳
+    "path": "String"          // 请求路径
+}
+```
+
+## 2. API 接口
+
+### 2.1 用户相关接口
+
+#### 2.1.1 用户注册
+- **URL**: `/user/register`
+- **Method**: POST
+- **请求体**: User对象（不需要id和createdAt）
+- **响应**: User对象
+- **错误码**:
+  - `INVALID_ARGUMENT`: 参数校验失败
+  - `BAD_REQUEST`: 手机号已被注册
+
+#### 2.1.2 查询用户信息
+- **URL**: `/user/{id}`
+- **Method**: GET
+- **参数**:
+  - `id`: 用户ID
+- **响应**: User对象
+- **错误码**:
+  - `BAD_REQUEST`: 用户不存在
+
+#### 2.1.3 检查手机号是否已注册
+- **URL**: `/user/check/{phone}`
+- **Method**: GET
+- **参数**:
+  - `phone`: 手机号
+- **响应**: Boolean（true表示已注册）
+
+### 2.2 问题相关接口
+
+#### 2.2.1 获取用户的问题列表
+- **URL**: `/question/user/{userId}`
+- **Method**: GET
+- **参数**:
+  - `userId`: 用户ID
+- **响应**: Question对象列表
+- **错误码**:
+  - `BAD_REQUEST`: 用户不存在
+
+#### 2.2.2 获取问题的选项列表
+- **URL**: `/question/{questionId}/option`
+- **Method**: GET
+- **参数**:
+  - `questionId`: 问题ID
+- **响应**: Option对象列表
+
+#### 2.2.3 获取下一个问题
+- **URL**: `/question/next`
+- **Method**: GET
+- **参数**:
+  - `userId`: 用户ID
+  - `currentQuestionNumber`: 当前问题序号
+  - `selectedOptions`: 选中的选项代码列表
+- **响应**: Question对象
+- **错误码**:
+  - `BAD_REQUEST`: 没有更多问题了
+
+### 2.3 问卷答案相关接口
+
+#### 2.3.1 提交问卷答案
+- **URL**: `/survey/submit/{userId}`
+- **Method**: POST
+- **参数**:
+  - `userId`: 用户ID
+- **请求体**: SurveyResponse对象列表
+- **响应**: SurveyResponse对象列表
+- **错误码**:
+  - `BAD_REQUEST`: 必答题未回答
+
+#### 2.3.2 获取用户的问卷答案
+- **URL**: `/survey/user/{userId}`
+- **Method**: GET
+- **参数**:
+  - `userId`: 用户ID
+- **响应**: SurveyResponse对象列表
+
+#### 2.3.3 获取问题的所有答案
+- **URL**: `/survey/question/{questionId}`
+- **Method**: GET
+- **参数**:
+  - `questionId`: 问题ID
+- **响应**: SurveyResponse对象列表
+
+## 3. 错误处理
+
+所有接口在发生错误时都会返回统一格式的错误信息（ErrorInfo对象）：
+
+### 3.1 通用错误码
+- `INVALID_ARGUMENT`: 参数校验失败
+- `BAD_REQUEST`: 业务逻辑错误
+- `DATABASE_ERROR`: 数据库访问错误
+- `SYSTEM_ERROR`: 系统错误
+
+### 3.2 HTTP状态码
+- 200: 请求成功
+- 400: 请求参数错误或业务逻辑错误
+- 500: 服务器内部错误
\ No newline at end of file
diff --git a/doc/requirements.md b/doc/requirements.md
new file mode 100644
index 0000000..ccd10ac
--- /dev/null
+++ b/doc/requirements.md
@@ -0,0 +1,62 @@
+# 在线调查问卷系统需求文档
+
+## 1. 系统概述
+本系统是一个在线调查问卷系统，用于收集用户对大模型应用的需求调研。系统包括前端问卷展示和后端数据处理两个部分。
+
+## 2. 功能需求
+
+### 2.1 用户信息收集
+- 用户需填写基本信息（姓名和手机号码）
+- 系统自动收集用户的问卷答案
+
+### 2.2 问卷功能
+- 支持问题跳转逻辑（根据用户选择自动跳转到相应问题）
+- 支持多种题型：
+  - 单选题
+  - 多选题
+  - 文本输入题
+- 答案自动保存到数据库
+
+### 2.3 数据存储
+- 使用MySQL数据库存储用户信息和答案
+- 数据库配置：
+  - 地址：127.0.0.1
+  - 用户名：dev
+  - 密码：无
+  - 权限：可建库建表
+
+## 3. 技术要求
+
+### 3.1 前端技术栈
+- 框架：Vue.js
+- UI框架：移动端适配的主流框架
+- HTTP请求：Axios（需要封装）
+- 项目名称：llm-survey
+
+### 3.2 后端技术栈
+- 开发语言：Java
+- 框架：Spring + MyBatis
+- 打包方式：WAR
+- 项目名称：llm-survey-api
+- 架构：三层架构
+  - 领域对象（Domain Objects）
+  - DAO层
+  - Service层
+  - Controller层
+
+### 3.3 部署要求
+- 前端：llm-survey
+- 后端：llm-survey-api
+- Nginx配置：
+  - 反向代理Tomcat接口
+  - 将后端API重定向到127.0.0.1:80/llm-survey-api
+
+## 4. 数据库初始化
+- 需要提供shell脚本进行数据库初始化
+- 脚本功能包括：
+  - 创建数据库
+  - 创建必要的表
+  - 设置必要的索引和约束
+
+## 5. 问卷内容
+问卷详细内容请参见 [大模型应用需求调研问卷.md](大模型应用需求调研问卷.md)
\ No newline at end of file
diff --git a/doc/大模型应用需求调研问卷.md b/doc/大模型应用需求调研问卷.md
new file mode 100644
index 0000000..b418d19
--- /dev/null
+++ b/doc/大模型应用需求调研问卷.md
@@ -0,0 +1,156 @@
+**（根据部门自动跳转专属问题）**  
+
+---
+
+## 第一部分：基本信息（必填）  
+1. 您所属部门：  
+   A. 研发部  
+   B. 项目部  
+   C. 保险部  
+   D. 财务部  
+   E. 客服部  
+   F. 运营部  
+   G. 综合管理部  
+
+2. 岗位性质：  
+   A. 管理岗  
+   B. 技术岗  
+   C. 业务岗  
+   D. 职能支持岗  
+
+---
+
+## 第二部分：通用认知调研（必答）  
+1. 您对大模型（如ChatGPT、通义千问、DeepSeek）的了解程度：  
+   A. 从未接触过  
+   B. 仅简单使用过通用功能（如问答）  
+   C. 在工作中尝试过基础应用  
+   D. 深度研究过技术原理  
+
+2. 您认为以下哪些业务场景最需要效率提升？（多选）  
+   A. 文档撰写/报告生成  
+   B. 数据清洗与分析  
+   C. 客户沟通与服务  
+   D. 风险识别与预警  
+   E. 流程自动化  
+   F. 其他：____________  
+
+3. 您最关注大模型应用的哪些风险？（多选）  
+   A. 数据隐私泄露  
+   B. 生成内容不准确  
+   C. 合规审查风险  
+   D. 技术使用门槛高  
+   E. 其他：____________  (需填写内容)
+
+---
+
+## 第三部分：部门专属问题  
+**（系统将根据第一部分选择的部门自动跳转）**  
+
+### 研发部  
+4. 您在开发过程中最耗时的重复性工作：  
+   A. 保险条款文档编写  
+   B. 医疗知识图谱维护  
+   C. API接口调试  
+   D. 其他：____________  
+
+5. 您希望大模型如何与现有系统集成：  
+   A. 自动生成代码片段（如DeepSeek-Coder）  
+   B. 智能测试用例生成（如通义千问测试场景模拟）  
+   C. 需求文档结构化（如ChatGPT生成PRD框架）  
+   D. 其他：____________  
+
+### 项目部  
+6. 惠民保产品设计中最需要数据支持的环节：  
+   A. 参保人群画像分析  
+   B. 竞品方案快速解析（如通义千问政策解读）  
+   C. 定价模型优化  
+   D. 其他：____________  
+
+7. 您希望如何用大模型提升方案输出效率：  
+   A. 自动生成PPT框架（ChatGPT生成大纲）  
+   B. 从政策文件中提取关键条款（DeepSeek语义解析）  
+   C. 风险测算报告自动化  
+   D. 其他：____________  
+
+### 保险部  
+8. 理赔处理中的主要效率瓶颈：  
+   A. 材料完整性核验  
+   B. 医疗票据信息提取（如OCR+通义千问核对）  
+   C. 案件风险分级  
+   D. 其他：____________  
+
+9. 您认为大模型可优化的理赔环节：  
+   A. 自动生成理赔告知书（ChatGPT模板生成）  
+   B. 异常案件预警提示（DeepSeek数据分析）  
+   C. 保险规则智能问答  
+   D. 其他：____________  
+
+### 财务部  
+10. 日常工作中重复性最高的任务：  
+   A. 发票信息录入核对  
+   B. 报销单据合规审查  
+   C. 财务报表数据汇总  
+   D. 其他：____________  
+
+11. 您希望大模型协助完成的财务工作：  
+   A. 自动提取票据关键字段（通义千问OCR识别）  
+   B. 生成财务分析摘要（ChatGPT文本总结）  
+   C. 异常收支模式检测（DeepSeek风险预测）  
+   D. 其他：____________  
+
+### 客服部  
+12. 客户咨询中最常遇到的重复性问题：  
+   A. 理赔进度查询  
+   B. 参保资格咨询  
+   C. 材料补交通知  
+   D. 其他：____________  
+
+13. 您希望大模型如何辅助客服工作：  
+   A. 自动生成个性化回复话术（ChatGPT对话生成）  
+   B. 客户情绪实时识别（通义千问情感分析）  
+   C. 咨询问题自动分类派单（DeepSeek意图分类）  
+   D. 其他：____________  
+
+### 运营部  
+14. 运营数据分析中的主要痛点：  
+   A. 多平台数据整合  
+   B. 参保率预测模型优化（DeepSeek时序预测）  
+   C. 宣传文案创意生成（通义千问文案生成）  
+   D. 其他：____________  
+
+15. 您希望大模型赋能的运营场景：  
+   A. 自动生成社交媒体图文（ChatGPT+通义万相）  
+   B. 用户评论情感分析（DeepSeek语义分析）  
+   C. 活动效果模拟预测  
+   D. 其他：____________  
+
+### 综合管理部  
+16. 日常工作中最耗时的行政事务：  
+   A. 合同条款审查  
+   B. 会议纪要整理  
+   C. 制度文档更新  
+   D. 其他：____________  
+
+17. 您希望大模型协助完成的行政工作：  
+   A. 自动生成招投标文件模板（ChatGPT框架生成）  
+   B. 合同风险点智能排查（通义千问法律审查）  
+   C. 流程说明书自动更新（DeepSeek版本迭代）  
+   D. 其他：____________  
+
+---
+
+## 第四部分：开放建议（选填）  
+18. 您对大模型培训的具体期待：  
+   ____________________________  
+
+19. 您认为公司引入AI需提前防范的风险：  
+   ____________________________  
+
+---
+
+### 问卷说明  
+20. **逻辑跳转**：系统将根据所选部门显示专属问题，总题量约10-12题。  
+21. **工具示例**：  
+   - 通用大模型：ChatGPT（OpenAI）、通义千问（阿里云）、DeepSeek（深度求索）  
+22. **提交方式**：匿名填写，预计耗时5-8分钟。  
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..f7deefc
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,161 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ltd.qubit</groupId>
+    <artifactId>llm-survey-api</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>war</packaging>
+
+    <properties>
+        <java.version>17</java.version>
+        <maven.compiler.source>${java.version}</maven.compiler.source>
+        <maven.compiler.target>${java.version}</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <spring.version>5.3.31</spring.version>
+        <mybatis.version>3.5.15</mybatis.version>
+        <mybatis-spring.version>2.1.2</mybatis-spring.version>
+        <mysql-connector.version>8.3.0</mysql-connector.version>
+        <hikaricp.version>5.1.0</hikaricp.version>
+        <jackson.version>2.16.1</jackson.version>
+        <lombok.version>1.18.30</lombok.version>
+        <slf4j.version>2.0.11</slf4j.version>
+        <logback.version>1.4.14</logback.version>
+        <servlet-api.version>4.0.1</servlet-api.version>
+    </properties>
+
+    <dependencies>
+        <!-- Spring Framework -->
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-webmvc</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-jdbc</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-context-support</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-tx</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+
+        <!-- MyBatis -->
+        <dependency>
+            <groupId>org.mybatis</groupId>
+            <artifactId>mybatis</artifactId>
+            <version>${mybatis.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.mybatis</groupId>
+            <artifactId>mybatis-spring</artifactId>
+            <version>${mybatis-spring.version}</version>
+        </dependency>
+
+        <!-- MySQL Connector -->
+        <dependency>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
+            <version>${mysql-connector.version}</version>
+        </dependency>
+
+        <!-- HikariCP -->
+        <dependency>
+            <groupId>com.zaxxer</groupId>
+            <artifactId>HikariCP</artifactId>
+            <version>${hikaricp.version}</version>
+        </dependency>
+
+        <!-- Jackson -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+
+        <!-- Lombok -->
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>${lombok.version}</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <!-- Logging -->
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>${slf4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>${logback.version}</version>
+        </dependency>
+
+        <!-- Servlet API -->
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>${servlet-api.version}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>llm-survey-api</finalName>
+        <plugins>
+            <!-- 编译插件 -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${java.version}</release>
+                    <encoding>${project.build.sourceEncoding}</encoding>
+                    <annotationProcessorPaths>
+                        <path>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                            <version>${lombok.version}</version>
+                        </path>
+                    </annotationProcessorPaths>
+                </configuration>
+            </plugin>
+
+            <!-- WAR打包插件 -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <version>3.4.0</version>
+                <configuration>
+                    <failOnMissingWebXml>false</failOnMissingWebXml>
+                </configuration>
+            </plugin>
+        </plugins>
+
+        <!-- 资源文件配置 -->
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+            <resource>
+                <directory>src/main/java</directory>
+                <includes>
+                    <include>**/*.xml</include>
+                </includes>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+</project>
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java b/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java
new file mode 100644
index 0000000..ef094e3
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java
@@ -0,0 +1,78 @@
+package ltd.qubit.survey.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import ltd.qubit.survey.model.ErrorInfo;
+import org.springframework.dao.DataAccessException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.BindException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+/**
+ * 全局异常处理器
+ */
+@Slf4j
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    /**
+     * 处理参数校验异常
+     */
+    @ExceptionHandler(BindException.class)
+    public ResponseEntity<ErrorInfo> handleBindException(BindException e) {
+        String message = e.getBindingResult().getFieldErrors().stream()
+                .map(error -> error.getField() + ": " + error.getDefaultMessage())
+                .reduce((a, b) -> a + "; " + b)
+                .orElse("参数错误");
+
+        ErrorInfo error = ErrorInfo.of(
+                "INVALID_ARGUMENT",
+                "参数校验失败",
+                message,
+                e.getObjectName());
+
+        return new ResponseEntity<>(error, HttpStatus.BAD_REQUEST);
+    }
+
+    /**
+     * 处理业务异常
+     */
+    @ExceptionHandler(IllegalArgumentException.class)
+    public ResponseEntity<ErrorInfo> handleIllegalArgumentException(IllegalArgumentException e) {
+        log.warn("业务异常", e);
+        ErrorInfo error = ErrorInfo.of(
+                "BAD_REQUEST",
+                e.getMessage(),
+                e.getClass().getName());
+        return new ResponseEntity<>(error, HttpStatus.BAD_REQUEST);
+    }
+
+    /**
+     * 处理数据访问异常
+     */
+    @ExceptionHandler(DataAccessException.class)
+    public ResponseEntity<ErrorInfo> handleDataAccessException(DataAccessException e) {
+        log.error("数据访问异常", e);
+        ErrorInfo error = ErrorInfo.of(
+                "DATABASE_ERROR",
+                "数据库访问错误",
+                e.getMessage(),
+                e.getClass().getName());
+        return new ResponseEntity<>(error, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+
+    /**
+     * 处理其他未知异常
+     */
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ErrorInfo> handleUnknownException(Exception e) {
+        log.error("系统异常", e);
+        ErrorInfo error = ErrorInfo.of(
+                "SYSTEM_ERROR",
+                "系统错误",
+                e.getMessage(),
+                e.getClass().getName());
+        return new ResponseEntity<>(error, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/controller/QuestionController.java b/src/main/java/ltd/qubit/survey/controller/QuestionController.java
new file mode 100644
index 0000000..674bb2b
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/controller/QuestionController.java
@@ -0,0 +1,62 @@
+package ltd.qubit.survey.controller;
+
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.Option;
+import ltd.qubit.survey.service.QuestionService;
+import ltd.qubit.survey.service.OptionService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * 问题控制器
+ */
+@RestController
+@RequestMapping("/api/questions")
+@RequiredArgsConstructor
+public class QuestionController {
+    private final QuestionService questionService;
+    private final OptionService optionService;
+
+    /**
+     * 获取用户的问题列表
+     *
+     * @param userId 用户ID
+     * @return 问题列表
+     */
+    @GetMapping("/user/{userId}")
+    public List<Question> getUserQuestions(@PathVariable Long userId) {
+        return questionService.getUserQuestions(userId);
+    }
+
+    /**
+     * 获取问题的选项列表
+     *
+     * @param questionId 问题ID
+     * @return 选项列表
+     */
+    @GetMapping("/{questionId}/options")
+    public List<Option> getQuestionOptions(@PathVariable Long questionId) {
+        return optionService.findByQuestionId(questionId);
+    }
+
+    /**
+     * 获取下一个问题
+     *
+     * @param userId 用户ID
+     * @param currentQuestionNumber 当前问题序号
+     * @param selectedOptions 选中的选项列表
+     * @return 下一个问题
+     */
+    @GetMapping("/next")
+    public Question getNextQuestion(
+            @PathVariable Long userId,
+            @PathVariable Integer currentQuestionNumber,
+            @PathVariable List<String> selectedOptions) {
+        return questionService.getNextQuestion(userId, currentQuestionNumber, selectedOptions)
+                .orElseThrow(() -> new IllegalArgumentException("没有更多问题了"));
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/controller/SurveyController.java b/src/main/java/ltd/qubit/survey/controller/SurveyController.java
new file mode 100644
index 0000000..bb3f203
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/controller/SurveyController.java
@@ -0,0 +1,58 @@
+package ltd.qubit.survey.controller;
+
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.model.SurveyResponse;
+import ltd.qubit.survey.service.SurveyResponseService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * 问卷控制器
+ */
+@RestController
+@RequestMapping("/api/survey")
+@RequiredArgsConstructor
+public class SurveyController {
+    private final SurveyResponseService surveyResponseService;
+
+    /**
+     * 提交问卷答案
+     *
+     * @param userId 用户ID
+     * @param responses 答案列表
+     * @return 提交成功的答案列表
+     */
+    @PostMapping("/submit/{userId}")
+    public List<SurveyResponse> submitSurvey(
+            @PathVariable Long userId,
+            @RequestBody List<SurveyResponse> responses) {
+        return surveyResponseService.submitSurvey(userId, responses);
+    }
+
+    /**
+     * 获取用户的问卷答案
+     *
+     * @param userId 用户ID
+     * @return 答案列表
+     */
+    @GetMapping("/user/{userId}")
+    public List<SurveyResponse> getUserResponses(@PathVariable Long userId) {
+        return surveyResponseService.findByUserId(userId);
+    }
+
+    /**
+     * 获取问题的所有答案
+     *
+     * @param questionId 问题ID
+     * @return 答案列表
+     */
+    @GetMapping("/question/{questionId}")
+    public List<SurveyResponse> getQuestionResponses(@PathVariable Long questionId) {
+        return surveyResponseService.findByQuestionId(questionId);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/controller/UserController.java b/src/main/java/ltd/qubit/survey/controller/UserController.java
new file mode 100644
index 0000000..05433e1
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/controller/UserController.java
@@ -0,0 +1,55 @@
+package ltd.qubit.survey.controller;
+
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.service.UserService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * 用户控制器
+ */
+@RestController
+@RequestMapping("/api/users")
+@RequiredArgsConstructor
+public class UserController {
+    private final UserService userService;
+
+    /**
+     * 用户注册
+     *
+     * @param user 用户信息
+     * @return 注册成功的用户信息
+     */
+    @PostMapping("/register")
+    public User register(@RequestBody User user) {
+        return userService.register(user);
+    }
+
+    /**
+     * 根据ID查询用户
+     *
+     * @param id 用户ID
+     * @return 用户信息
+     */
+    @GetMapping("/{id}")
+    public User findById(@PathVariable Long id) {
+        return userService.findById(id)
+                .orElseThrow(() -> new IllegalArgumentException("用户不存在"));
+    }
+
+    /**
+     * 检查手机号是否已注册
+     *
+     * @param phone 手机号
+     * @return 是否已注册
+     */
+    @GetMapping("/check/{phone}")
+    public boolean checkPhone(@PathVariable String phone) {
+        return userService.isPhoneRegistered(phone);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/dao/BaseDao.java b/src/main/java/ltd/qubit/survey/dao/BaseDao.java
new file mode 100644
index 0000000..fea38a9
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/dao/BaseDao.java
@@ -0,0 +1,51 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+
+/**
+ * 基础DAO接口，定义通用的CRUD操作
+ *
+ * @param <T> 实体类型
+ * @param <K> 主键类型
+ */
+public interface BaseDao<T, K> {
+    /**
+     * 插入一条记录
+     *
+     * @param entity 实体对象
+     * @return 影响的行数
+     */
+    int insert(T entity);
+
+    /**
+     * 根据主键删除记录
+     *
+     * @param id 主键
+     * @return 影响的行数
+     */
+    int deleteById(K id);
+
+    /**
+     * 更新记录
+     *
+     * @param entity 实体对象
+     * @return 影响的行数
+     */
+    int update(T entity);
+
+    /**
+     * 根据主键查询
+     *
+     * @param id 主键
+     * @return 实体对象
+     */
+    Optional<T> findById(K id);
+
+    /**
+     * 查询所有记录
+     *
+     * @return 实体对象列表
+     */
+    List<T> findAll();
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/dao/OptionDao.java b/src/main/java/ltd/qubit/survey/dao/OptionDao.java
new file mode 100644
index 0000000..16ca3d4
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/dao/OptionDao.java
@@ -0,0 +1,43 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.Option;
+
+/**
+ * 选项DAO接口
+ */
+public interface OptionDao extends BaseDao<Option, Long> {
+    /**
+     * 根据问题ID查询选项列表
+     *
+     * @param questionId 问题ID
+     * @return 选项列表
+     */
+    List<Option> findByQuestionId(Long questionId);
+
+    /**
+     * 根据问题ID和选项代码查询
+     *
+     * @param questionId 问题ID
+     * @param optionCode 选项代码
+     * @return 选项对象
+     */
+    Optional<Option> findByQuestionIdAndCode(Long questionId, String optionCode);
+
+    /**
+     * 批量插入选项
+     *
+     * @param options 选项列表
+     * @return 影响的行数
+     */
+    int batchInsert(List<Option> options);
+
+    /**
+     * 根据问题ID删除所有选项
+     *
+     * @param questionId 问题ID
+     * @return 影响的行数
+     */
+    int deleteByQuestionId(Long questionId);
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/dao/QuestionDao.java b/src/main/java/ltd/qubit/survey/dao/QuestionDao.java
new file mode 100644
index 0000000..b4071d2
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/dao/QuestionDao.java
@@ -0,0 +1,41 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.WorkArea;
+
+/**
+ * 问题DAO接口
+ */
+public interface QuestionDao extends BaseDao<Question, Long> {
+    /**
+     * 根据问题序号查询
+     *
+     * @param questionNumber 问题序号
+     * @return 问题对象
+     */
+    Optional<Question> findByQuestionNumber(Integer questionNumber);
+
+    /**
+     * 根据工作领域查询问题列表
+     *
+     * @param workArea 工作领域
+     * @return 问题列表
+     */
+    List<Question> findByWorkArea(WorkArea workArea);
+
+    /**
+     * 查询通用问题列表（不针对特定工作领域）
+     *
+     * @return 问题列表
+     */
+    List<Question> findCommonQuestions();
+
+    /**
+     * 获取下一个可用的问题序号
+     *
+     * @return 下一个问题序号
+     */
+    Integer getNextQuestionNumber();
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java b/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java
new file mode 100644
index 0000000..dab5d09
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java
@@ -0,0 +1,51 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.SurveyResponse;
+
+/**
+ * 问卷答案DAO接口
+ */
+public interface SurveyResponseDao extends BaseDao<SurveyResponse, Long> {
+    /**
+     * 根据用户ID查询答案列表
+     *
+     * @param userId 用户ID
+     * @return 答案列表
+     */
+    List<SurveyResponse> findByUserId(Long userId);
+
+    /**
+     * 根据问题ID查询答案列表
+     *
+     * @param questionId 问题ID
+     * @return 答案列表
+     */
+    List<SurveyResponse> findByQuestionId(Long questionId);
+
+    /**
+     * 根据用户ID和问题ID查询答案
+     *
+     * @param userId 用户ID
+     * @param questionId 问题ID
+     * @return 答案对象
+     */
+    Optional<SurveyResponse> findByUserIdAndQuestionId(Long userId, Long questionId);
+
+    /**
+     * 批量插入答案
+     *
+     * @param responses 答案列表
+     * @return 影响的行数
+     */
+    int batchInsert(List<SurveyResponse> responses);
+
+    /**
+     * 根据用户ID删除所有答案
+     *
+     * @param userId 用户ID
+     * @return 影响的行数
+     */
+    int deleteByUserId(Long userId);
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/dao/UserDao.java b/src/main/java/ltd/qubit/survey/dao/UserDao.java
new file mode 100644
index 0000000..99916f2
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/dao/UserDao.java
@@ -0,0 +1,27 @@
+package ltd.qubit.survey.dao;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.model.WorkArea;
+
+/**
+ * 用户DAO接口
+ */
+public interface UserDao extends BaseDao<User, Long> {
+    /**
+     * 根据手机号查询用户
+     *
+     * @param phone 手机号
+     * @return 用户对象
+     */
+    Optional<User> findByPhone(String phone);
+
+    /**
+     * 根据工作领域查询用户列表
+     *
+     * @param workArea 工作领域
+     * @return 用户列表
+     */
+    List<User> findByWorkArea(WorkArea workArea);
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/model/ErrorInfo.java b/src/main/java/ltd/qubit/survey/model/ErrorInfo.java
new file mode 100644
index 0000000..fd4a71e
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/model/ErrorInfo.java
@@ -0,0 +1,65 @@
+package ltd.qubit.survey.model;
+
+import lombok.Data;
+
+/**
+ * 错误信息
+ */
+@Data
+public class ErrorInfo {
+    /**
+     * 错误代码
+     */
+    private String code;
+
+    /**
+     * 错误消息
+     */
+    private String message;
+
+    /**
+     * 错误详情
+     */
+    private String detail;
+
+    /**
+     * 时间戳
+     */
+    private long timestamp;
+
+    /**
+     * 请求路径
+     */
+    private String path;
+
+    /**
+     * 创建错误信息
+     *
+     * @param code 错误代码
+     * @param message 错误消息
+     * @param detail 错误详情
+     * @param path 请求路径
+     * @return 错误信息
+     */
+    public static ErrorInfo of(String code, String message, String detail, String path) {
+        ErrorInfo error = new ErrorInfo();
+        error.setCode(code);
+        error.setMessage(message);
+        error.setDetail(detail);
+        error.setPath(path);
+        error.setTimestamp(System.currentTimeMillis());
+        return error;
+    }
+
+    /**
+     * 创建错误信息（无详情）
+     *
+     * @param code 错误代码
+     * @param message 错误消息
+     * @param path 请求路径
+     * @return 错误信息
+     */
+    public static ErrorInfo of(String code, String message, String path) {
+        return of(code, message, null, path);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/model/Option.java b/src/main/java/ltd/qubit/survey/model/Option.java
new file mode 100644
index 0000000..40301ee
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/model/Option.java
@@ -0,0 +1,40 @@
+package ltd.qubit.survey.model;
+
+import java.time.LocalDateTime;
+import lombok.Data;
+
+/**
+ * 问题选项实体类
+ */
+@Data
+public class Option {
+    /**
+     * 选项ID
+     */
+    private Long id;
+
+    /**
+     * 关联的问题ID
+     */
+    private Long questionId;
+
+    /**
+     * 选项代码（如A、B、C）
+     */
+    private String optionCode;
+
+    /**
+     * 选项内容
+     */
+    private String content;
+
+    /**
+     * 是否需要填写文本
+     */
+    private Boolean requiresText;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createdAt;
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/model/PositionType.java b/src/main/java/ltd/qubit/survey/model/PositionType.java
new file mode 100644
index 0000000..cf4f932
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/model/PositionType.java
@@ -0,0 +1,36 @@
+package ltd.qubit.survey.model;
+
+/**
+ * 岗位性质枚举
+ */
+public enum PositionType {
+    /**
+     * 管理岗
+     */
+    MANAGEMENT("管理岗"),
+
+    /**
+     * 技术岗
+     */
+    TECHNICAL("技术岗"),
+
+    /**
+     * 业务岗
+     */
+    BUSINESS("业务岗"),
+
+    /**
+     * 职能支持岗
+     */
+    SUPPORT("职能支持岗");
+
+    private final String displayName;
+
+    PositionType(String displayName) {
+        this.displayName = displayName;
+    }
+
+    public String getDisplayName() {
+        return displayName;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/model/Question.java b/src/main/java/ltd/qubit/survey/model/Question.java
new file mode 100644
index 0000000..2e06c26
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/model/Question.java
@@ -0,0 +1,50 @@
+package ltd.qubit.survey.model;
+
+import java.time.LocalDateTime;
+import lombok.Data;
+
+/**
+ * 问题实体类
+ */
+@Data
+public class Question {
+    /**
+     * 问题ID
+     */
+    private Long id;
+
+    /**
+     * 问题序号
+     */
+    private Integer questionNumber;
+
+    /**
+     * 问题内容
+     */
+    private String content;
+
+    /**
+     * 问题类型（单选、多选、文本）
+     */
+    private QuestionType questionType;
+
+    /**
+     * 针对的工作领域（为null表示通用问题）
+     */
+    private WorkArea workArea;
+
+    /**
+     * 是否必答
+     */
+    private Boolean isRequired;
+
+    /**
+     * 跳转逻辑（JSON格式）
+     */
+    private String nextQuestionLogic;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createdAt;
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/model/QuestionType.java b/src/main/java/ltd/qubit/survey/model/QuestionType.java
new file mode 100644
index 0000000..a85da6b
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/model/QuestionType.java
@@ -0,0 +1,21 @@
+package ltd.qubit.survey.model;
+
+/**
+ * 问题类型枚举
+ */
+public enum QuestionType {
+    /**
+     * 单选题
+     */
+    SINGLE_CHOICE,
+
+    /**
+     * 多选题
+     */
+    MULTIPLE_CHOICE,
+
+    /**
+     * 文本题
+     */
+    TEXT
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/model/SurveyResponse.java b/src/main/java/ltd/qubit/survey/model/SurveyResponse.java
new file mode 100644
index 0000000..e961eea
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/model/SurveyResponse.java
@@ -0,0 +1,41 @@
+package ltd.qubit.survey.model;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import lombok.Data;
+
+/**
+ * 问卷答案实体类
+ */
+@Data
+public class SurveyResponse {
+    /**
+     * 答案ID
+     */
+    private Long id;
+
+    /**
+     * 用户ID
+     */
+    private Long userId;
+
+    /**
+     * 问题ID
+     */
+    private Long questionId;
+
+    /**
+     * 选中的选项代码列表（JSON格式）
+     */
+    private List<String> selectedOptions;
+
+    /**
+     * 文本答案
+     */
+    private String textAnswer;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createdAt;
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/model/User.java b/src/main/java/ltd/qubit/survey/model/User.java
new file mode 100644
index 0000000..86c8192
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/model/User.java
@@ -0,0 +1,40 @@
+package ltd.qubit.survey.model;
+
+import java.time.LocalDateTime;
+import lombok.Data;
+
+/**
+ * 用户信息实体类
+ */
+@Data
+public class User {
+    /**
+     * 用户ID
+     */
+    private Long id;
+
+    /**
+     * 姓名
+     */
+    private String name;
+
+    /**
+     * 手机号码
+     */
+    private String phone;
+
+    /**
+     * 工作领域
+     */
+    private WorkArea workArea;
+
+    /**
+     * 岗位性质
+     */
+    private PositionType positionType;
+
+    /**
+     * 创建时间
+     */
+    private LocalDateTime createdAt;
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/model/WorkArea.java b/src/main/java/ltd/qubit/survey/model/WorkArea.java
new file mode 100644
index 0000000..f13981d
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/model/WorkArea.java
@@ -0,0 +1,51 @@
+package ltd.qubit.survey.model;
+
+/**
+ * 工作领域枚举
+ */
+public enum WorkArea {
+    /**
+     * 研发领域
+     */
+    RD("研发"),
+
+    /**
+     * 项目领域
+     */
+    PROJECT("项目"),
+
+    /**
+     * 保险领域
+     */
+    INSURANCE("保险"),
+
+    /**
+     * 财务领域
+     */
+    FINANCE("财务"),
+
+    /**
+     * 运营领域
+     */
+    OPERATION("运营"),
+
+    /**
+     * 客服领域
+     */
+    CUSTOMER_SERVICE("客服"),
+
+    /**
+     * 综合管理领域
+     */
+    ADMIN("综合管理");
+
+    private final String displayName;
+
+    WorkArea(String displayName) {
+        this.displayName = displayName;
+    }
+
+    public String getDisplayName() {
+        return displayName;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/BaseService.java b/src/main/java/ltd/qubit/survey/service/BaseService.java
new file mode 100644
index 0000000..dd65ae1
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/BaseService.java
@@ -0,0 +1,55 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * 基础Service接口，定义通用的CRUD操作
+ *
+ * @param <T> 实体类型
+ * @param <K> 主键类型
+ */
+@Transactional(readOnly = true)
+public interface BaseService<T, K> {
+    /**
+     * 新增
+     *
+     * @param entity 实体对象
+     * @return 实体对象
+     */
+    @Transactional
+    T create(T entity);
+
+    /**
+     * 删除
+     *
+     * @param id 主键
+     */
+    @Transactional
+    void delete(K id);
+
+    /**
+     * 更新
+     *
+     * @param entity 实体对象
+     * @return 实体对象
+     */
+    @Transactional
+    T update(T entity);
+
+    /**
+     * 根据ID查询
+     *
+     * @param id 主键
+     * @return 实体对象
+     */
+    Optional<T> findById(K id);
+
+    /**
+     * 查询所有
+     *
+     * @return 实体对象列表
+     */
+    List<T> findAll();
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/OptionService.java b/src/main/java/ltd/qubit/survey/service/OptionService.java
new file mode 100644
index 0000000..ea0677a
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/OptionService.java
@@ -0,0 +1,42 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.Option;
+
+/**
+ * 选项服务接口
+ */
+public interface OptionService extends BaseService<Option, Long> {
+    /**
+     * 根据问题ID查询选项列表
+     *
+     * @param questionId 问题ID
+     * @return 选项列表
+     */
+    List<Option> findByQuestionId(Long questionId);
+
+    /**
+     * 根据问题ID和选项代码查询
+     *
+     * @param questionId 问题ID
+     * @param optionCode 选项代码
+     * @return 选项对象
+     */
+    Optional<Option> findByQuestionIdAndCode(Long questionId, String optionCode);
+
+    /**
+     * 批量创建选项
+     *
+     * @param options 选项列表
+     * @return 创建成功的选项列表
+     */
+    List<Option> batchCreate(List<Option> options);
+
+    /**
+     * 删除问题的所有选项
+     *
+     * @param questionId 问题ID
+     */
+    void deleteByQuestionId(Long questionId);
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/QuestionService.java b/src/main/java/ltd/qubit/survey/service/QuestionService.java
new file mode 100644
index 0000000..9901aec
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/QuestionService.java
@@ -0,0 +1,54 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.WorkArea;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * 问题服务接口
+ */
+@Transactional(readOnly = true)
+public interface QuestionService extends BaseService<Question, Long> {
+    /**
+     * 根据问题序号查询
+     *
+     * @param questionNumber 问题序号
+     * @return 问题对象
+     */
+    Optional<Question> findByQuestionNumber(Integer questionNumber);
+
+    /**
+     * 根据工作领域查询问题列表
+     *
+     * @param workArea 工作领域
+     * @return 问题列表
+     */
+    List<Question> findByWorkArea(WorkArea workArea);
+
+    /**
+     * 查询通用问题列表（不针对特定工作领域）
+     *
+     * @return 问题列表
+     */
+    List<Question> findCommonQuestions();
+
+    /**
+     * 获取用户的下一个问题
+     *
+     * @param userId 用户ID
+     * @param currentQuestionNumber 当前问题序号
+     * @param selectedOptions 当前问题的选择项
+     * @return 下一个问题
+     */
+    Optional<Question> getNextQuestion(Long userId, Integer currentQuestionNumber, List<String> selectedOptions);
+
+    /**
+     * 获取用户的问题列表（包括通用问题和针对其工作领域的问题）
+     *
+     * @param userId 用户ID
+     * @return 问题列表
+     */
+    List<Question> getUserQuestions(Long userId);
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java b/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java
new file mode 100644
index 0000000..7fe04ea
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java
@@ -0,0 +1,64 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.SurveyResponse;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * 问卷答案服务接口
+ */
+@Transactional(readOnly = true)
+public interface SurveyResponseService extends BaseService<SurveyResponse, Long> {
+    /**
+     * 根据用户ID查询答案列表
+     *
+     * @param userId 用户ID
+     * @return 答案列表
+     */
+    List<SurveyResponse> findByUserId(Long userId);
+
+    /**
+     * 根据问题ID查询答案列表
+     *
+     * @param questionId 问题ID
+     * @return 答案列表
+     */
+    List<SurveyResponse> findByQuestionId(Long questionId);
+
+    /**
+     * 根据用户ID和问题ID查询答案
+     *
+     * @param userId 用户ID
+     * @param questionId 问题ID
+     * @return 答案对象
+     */
+    Optional<SurveyResponse> findByUserIdAndQuestionId(Long userId, Long questionId);
+
+    /**
+     * 批量保存答案
+     *
+     * @param responses 答案列表
+     * @return 保存成功的答案列表
+     */
+    @Transactional
+    List<SurveyResponse> batchSave(List<SurveyResponse> responses);
+
+    /**
+     * 删除用户的所有答案
+     *
+     * @param userId 用户ID
+     */
+    @Transactional
+    void deleteByUserId(Long userId);
+
+    /**
+     * 提交问卷答案
+     *
+     * @param userId 用户ID
+     * @param responses 答案列表
+     * @return 提交成功的答案列表
+     */
+    @Transactional
+    List<SurveyResponse> submitSurvey(Long userId, List<SurveyResponse> responses);
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/UserService.java b/src/main/java/ltd/qubit/survey/service/UserService.java
new file mode 100644
index 0000000..af07437
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/UserService.java
@@ -0,0 +1,46 @@
+package ltd.qubit.survey.service;
+
+import java.util.List;
+import java.util.Optional;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.model.WorkArea;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * 用户服务接口
+ */
+@Transactional(readOnly = true)
+public interface UserService extends BaseService<User, Long> {
+    /**
+     * 根据手机号查询用户
+     *
+     * @param phone 手机号
+     * @return 用户对象
+     */
+    Optional<User> findByPhone(String phone);
+
+    /**
+     * 根据工作领域查询用户列表
+     *
+     * @param workArea 工作领域
+     * @return 用户列表
+     */
+    List<User> findByWorkArea(WorkArea workArea);
+
+    /**
+     * 用户注册
+     *
+     * @param user 用户信息
+     * @return 注册成功的用户
+     */
+    @Transactional
+    User register(User user);
+
+    /**
+     * 检查手机号是否已被注册
+     *
+     * @param phone 手机号
+     * @return 是否已注册
+     */
+    boolean isPhoneRegistered(String phone);
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java b/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java
new file mode 100644
index 0000000..82680b8
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java
@@ -0,0 +1,73 @@
+package ltd.qubit.survey.service.impl;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.dao.OptionDao;
+import ltd.qubit.survey.model.Option;
+import ltd.qubit.survey.service.OptionService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 选项服务实现类
+ */
+@Service
+@RequiredArgsConstructor
+public class OptionServiceImpl implements OptionService {
+    private final OptionDao optionDao;
+
+    @Override
+    public Option create(Option option) {
+        option.setCreatedAt(LocalDateTime.now());
+        optionDao.insert(option);
+        return option;
+    }
+
+    @Override
+    public void delete(Long id) {
+        optionDao.deleteById(id);
+    }
+
+    @Override
+    public Option update(Option option) {
+        optionDao.update(option);
+        return option;
+    }
+
+    @Override
+    public Optional<Option> findById(Long id) {
+        return optionDao.findById(id);
+    }
+
+    @Override
+    public List<Option> findAll() {
+        return optionDao.findAll();
+    }
+
+    @Override
+    public List<Option> findByQuestionId(Long questionId) {
+        return optionDao.findByQuestionId(questionId);
+    }
+
+    @Override
+    public Optional<Option> findByQuestionIdAndCode(Long questionId, String optionCode) {
+        return optionDao.findByQuestionIdAndCode(questionId, optionCode);
+    }
+
+    @Override
+    public List<Option> batchCreate(List<Option> options) {
+        // 设置创建时间
+        LocalDateTime now = LocalDateTime.now();
+        options.forEach(option -> option.setCreatedAt(now));
+
+        // 批量插入
+        optionDao.batchInsert(options);
+        return options;
+    }
+
+    @Override
+    public void deleteByQuestionId(Long questionId) {
+        optionDao.deleteByQuestionId(questionId);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java b/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java
new file mode 100644
index 0000000..4b3c89a
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java
@@ -0,0 +1,128 @@
+package ltd.qubit.survey.service.impl;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.dao.QuestionDao;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.model.WorkArea;
+import ltd.qubit.survey.service.QuestionService;
+import ltd.qubit.survey.service.UserService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 问题服务实现类
+ */
+@Service
+@RequiredArgsConstructor
+public class QuestionServiceImpl implements QuestionService {
+    private final QuestionDao questionDao;
+    private final UserService userService;
+    private final ObjectMapper objectMapper;
+
+    @Override
+    public Question create(Question question) {
+        // 如果没有指定问题序号，则自动生成
+        if (question.getQuestionNumber() == null) {
+            question.setQuestionNumber(questionDao.getNextQuestionNumber());
+        }
+        question.setCreatedAt(LocalDateTime.now());
+        questionDao.insert(question);
+        return question;
+    }
+
+    @Override
+    public void delete(Long id) {
+        questionDao.deleteById(id);
+    }
+
+    @Override
+    public Question update(Question question) {
+        questionDao.update(question);
+        return question;
+    }
+
+    @Override
+    public Optional<Question> findById(Long id) {
+        return questionDao.findById(id);
+    }
+
+    @Override
+    public List<Question> findAll() {
+        return questionDao.findAll();
+    }
+
+    @Override
+    public Optional<Question> findByQuestionNumber(Integer questionNumber) {
+        return questionDao.findByQuestionNumber(questionNumber);
+    }
+
+    @Override
+    public List<Question> findByWorkArea(WorkArea workArea) {
+        return questionDao.findByWorkArea(workArea);
+    }
+
+    @Override
+    public List<Question> findCommonQuestions() {
+        return questionDao.findCommonQuestions();
+    }
+
+    @Override
+    public Optional<Question> getNextQuestion(Long userId, Integer currentQuestionNumber, List<String> selectedOptions) {
+        // 获取当前问题
+        Optional<Question> currentQuestion = findByQuestionNumber(currentQuestionNumber);
+        if (currentQuestion.isEmpty()) {
+            return Optional.empty();
+        }
+
+        // 如果当前问题有跳转逻辑，则根据选项判断下一个问题
+        String nextQuestionLogic = currentQuestion.get().getNextQuestionLogic();
+        if (nextQuestionLogic != null && !nextQuestionLogic.isEmpty()) {
+            try {
+                // 解析跳转逻辑JSON
+                Map<String, Integer> logic = objectMapper.readValue(nextQuestionLogic,
+                        new TypeReference<Map<String, Integer>>() {});
+
+                // 根据选项确定下一个问题序号
+                for (String option : selectedOptions) {
+                    if (logic.containsKey(option)) {
+                        return findByQuestionNumber(logic.get(option));
+                    }
+                }
+            } catch (Exception e) {
+                // JSON解析错误，继续使用默认的下一个问题
+            }
+        }
+
+        // 如果没有特殊跳转逻辑，则返回序号加1的问题
+        return findByQuestionNumber(currentQuestionNumber + 1);
+    }
+
+    @Override
+    public List<Question> getUserQuestions(Long userId) {
+        List<Question> questions = new ArrayList<>();
+
+        // 获取用户信息
+        Optional<User> user = userService.findById(userId);
+        if (user.isEmpty()) {
+            return questions;
+        }
+
+        // 添加通用问题
+        questions.addAll(findCommonQuestions());
+
+        // 添加针对用户工作领域的问题
+        questions.addAll(findByWorkArea(user.get().getWorkArea()));
+
+        // 按问题序号排序
+        questions.sort((q1, q2) -> q1.getQuestionNumber().compareTo(q2.getQuestionNumber()));
+
+        return questions;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java b/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java
new file mode 100644
index 0000000..cf0d297
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java
@@ -0,0 +1,111 @@
+package ltd.qubit.survey.service.impl;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.dao.SurveyResponseDao;
+import ltd.qubit.survey.model.Question;
+import ltd.qubit.survey.model.SurveyResponse;
+import ltd.qubit.survey.service.QuestionService;
+import ltd.qubit.survey.service.SurveyResponseService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 问卷答案服务实现类
+ */
+@Service
+@RequiredArgsConstructor
+public class SurveyResponseServiceImpl implements SurveyResponseService {
+    private final SurveyResponseDao surveyResponseDao;
+    private final QuestionService questionService;
+
+    @Override
+    public SurveyResponse create(SurveyResponse response) {
+        response.setCreatedAt(LocalDateTime.now());
+        surveyResponseDao.insert(response);
+        return response;
+    }
+
+    @Override
+    public void delete(Long id) {
+        surveyResponseDao.deleteById(id);
+    }
+
+    @Override
+    public SurveyResponse update(SurveyResponse response) {
+        surveyResponseDao.update(response);
+        return response;
+    }
+
+    @Override
+    public Optional<SurveyResponse> findById(Long id) {
+        return surveyResponseDao.findById(id);
+    }
+
+    @Override
+    public List<SurveyResponse> findAll() {
+        return surveyResponseDao.findAll();
+    }
+
+    @Override
+    public List<SurveyResponse> findByUserId(Long userId) {
+        return surveyResponseDao.findByUserId(userId);
+    }
+
+    @Override
+    public List<SurveyResponse> findByQuestionId(Long questionId) {
+        return surveyResponseDao.findByQuestionId(questionId);
+    }
+
+    @Override
+    public Optional<SurveyResponse> findByUserIdAndQuestionId(Long userId, Long questionId) {
+        return surveyResponseDao.findByUserIdAndQuestionId(userId, questionId);
+    }
+
+    @Override
+    public List<SurveyResponse> batchSave(List<SurveyResponse> responses) {
+        // 设置创建时间
+        LocalDateTime now = LocalDateTime.now();
+        responses.forEach(response -> response.setCreatedAt(now));
+
+        // 批量插入
+        surveyResponseDao.batchInsert(responses);
+        return responses;
+    }
+
+    @Override
+    public void deleteByUserId(Long userId) {
+        surveyResponseDao.deleteByUserId(userId);
+    }
+
+    @Override
+    public List<SurveyResponse> submitSurvey(Long userId, List<SurveyResponse> responses) {
+        // 验证所有必答题是否已回答
+        List<Question> questions = questionService.getUserQuestions(userId);
+        for (Question question : questions) {
+            if (question.getIsRequired()) {
+                boolean answered = responses.stream()
+                        .anyMatch(response -> response.getQuestionId().equals(question.getId()));
+                if (!answered) {
+                    throw new IllegalArgumentException(
+                            String.format("问题 %d 为必答题，请填写答案", question.getQuestionNumber()));
+                }
+            }
+        }
+
+        // 删除用户之前的答案
+        deleteByUserId(userId);
+
+        // 设置用户ID和创建时间
+        LocalDateTime now = LocalDateTime.now();
+        responses.forEach(response -> {
+            response.setUserId(userId);
+            response.setCreatedAt(now);
+        });
+
+        // 批量保存答案
+        surveyResponseDao.batchInsert(responses);
+        return responses;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java b/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java
new file mode 100644
index 0000000..2c70878
--- /dev/null
+++ b/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java
@@ -0,0 +1,72 @@
+package ltd.qubit.survey.service.impl;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import ltd.qubit.survey.dao.UserDao;
+import ltd.qubit.survey.model.User;
+import ltd.qubit.survey.model.WorkArea;
+import ltd.qubit.survey.service.UserService;
+import org.springframework.stereotype.Service;
+
+/**
+ * 用户服务实现类
+ */
+@Service
+@RequiredArgsConstructor
+public class UserServiceImpl implements UserService {
+    private final UserDao userDao;
+
+    @Override
+    public User create(User user) {
+        user.setCreatedAt(LocalDateTime.now());
+        userDao.insert(user);
+        return user;
+    }
+
+    @Override
+    public void delete(Long id) {
+        userDao.deleteById(id);
+    }
+
+    @Override
+    public User update(User user) {
+        userDao.update(user);
+        return user;
+    }
+
+    @Override
+    public Optional<User> findById(Long id) {
+        return userDao.findById(id);
+    }
+
+    @Override
+    public List<User> findAll() {
+        return userDao.findAll();
+    }
+
+    @Override
+    public Optional<User> findByPhone(String phone) {
+        return userDao.findByPhone(phone);
+    }
+
+    @Override
+    public List<User> findByWorkArea(WorkArea workArea) {
+        return userDao.findByWorkArea(workArea);
+    }
+
+    @Override
+    public User register(User user) {
+        // 检查手机号是否已注册
+        if (isPhoneRegistered(user.getPhone())) {
+            throw new IllegalArgumentException("手机号已被注册");
+        }
+        return create(user);
+    }
+
+    @Override
+    public boolean isPhoneRegistered(String phone) {
+        return userDao.findByPhone(phone).isPresent();
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
new file mode 100644
index 0000000..df235fd
--- /dev/null
+++ b/src/main/resources/application.properties
@@ -0,0 +1,18 @@
+# 数据库配置
+jdbc.driver=com.mysql.cj.jdbc.Driver
+jdbc.url=jdbc:mysql://127.0.0.1:3306/llm_survey?useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
+jdbc.username=dev
+jdbc.password=
+
+# 连接池配置
+jdbc.pool.minimumIdle=5
+jdbc.pool.maximumPoolSize=20
+jdbc.pool.idleTimeout=300000
+jdbc.pool.connectionTimeout=20000
+jdbc.pool.connectionTestQuery=SELECT 1
+
+# 日志配置
+logging.level.root=INFO
+logging.level.ltd.qubit.survey=DEBUG
+logging.level.org.springframework=INFO
+logging.level.org.mybatis=DEBUG
\ No newline at end of file
diff --git a/src/main/resources/mybatis/mapper/OptionMapper.xml b/src/main/resources/mybatis/mapper/OptionMapper.xml
new file mode 100644
index 0000000..51ae85e
--- /dev/null
+++ b/src/main/resources/mybatis/mapper/OptionMapper.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.OptionDao">
+    <!-- 结果映射 -->
+    <resultMap id="optionMap" type="ltd.qubit.survey.model.Option">
+        <id property="id" column="id"/>
+        <result property="questionId" column="question_id"/>
+        <result property="optionCode" column="option_code"/>
+        <result property="content" column="content"/>
+        <result property="requiresText" column="requires_text"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, question_id, option_code, content, requires_text, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.Option" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO options (question_id, option_code, content, requires_text)
+        VALUES (#{questionId}, #{optionCode}, #{content}, #{requiresText})
+    </insert>
+
+    <!-- 批量插入 -->
+    <insert id="batchInsert" parameterType="java.util.List">
+        INSERT INTO options (question_id, option_code, content, requires_text)
+        VALUES
+        <foreach collection="list" item="item" separator=",">
+            (#{item.questionId}, #{item.optionCode}, #{item.content}, #{item.requiresText})
+        </foreach>
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.Option">
+        UPDATE options
+        SET question_id = #{questionId},
+            option_code = #{optionCode},
+            content = #{content},
+            requires_text = #{requiresText}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM options WHERE id = #{id}
+    </delete>
+
+    <!-- 根据问题ID删除 -->
+    <delete id="deleteByQuestionId" parameterType="long">
+        DELETE FROM options WHERE question_id = #{questionId}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        ORDER BY question_id, option_code
+    </select>
+
+    <!-- 根据问题ID查询 -->
+    <select id="findByQuestionId" parameterType="long" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE question_id = #{questionId}
+        ORDER BY option_code
+    </select>
+
+    <!-- 根据问题ID和选项代码查询 -->
+    <select id="findByQuestionIdAndCode" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE question_id = #{questionId}
+        AND option_code = #{optionCode}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/src/main/resources/mybatis/mapper/QuestionMapper.xml b/src/main/resources/mybatis/mapper/QuestionMapper.xml
new file mode 100644
index 0000000..4d3d902
--- /dev/null
+++ b/src/main/resources/mybatis/mapper/QuestionMapper.xml
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.QuestionDao">
+    <!-- 结果映射 -->
+    <resultMap id="questionMap" type="ltd.qubit.survey.model.Question">
+        <id property="id" column="id"/>
+        <result property="questionNumber" column="question_number"/>
+        <result property="content" column="content"/>
+        <result property="questionType" column="question_type"/>
+        <result property="workArea" column="work_area"/>
+        <result property="isRequired" column="is_required"/>
+        <result property="nextQuestionLogic" column="next_question_logic"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, question_number, content, question_type, work_area, is_required, next_question_logic, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.Question" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO questions (question_number, content, question_type, work_area, is_required, next_question_logic)
+        VALUES (#{questionNumber}, #{content}, #{questionType}, #{workArea}, #{isRequired}, #{nextQuestionLogic})
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.Question">
+        UPDATE questions
+        SET question_number = #{questionNumber},
+            content = #{content},
+            question_type = #{questionType},
+            work_area = #{workArea},
+            is_required = #{isRequired},
+            next_question_logic = #{nextQuestionLogic}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM questions WHERE id = #{id}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        ORDER BY question_number
+    </select>
+
+    <!-- 根据问题序号查询 -->
+    <select id="findByQuestionNumber" parameterType="int" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE question_number = #{questionNumber}
+    </select>
+
+    <!-- 根据工作领域查询 -->
+    <select id="findByWorkArea" parameterType="string" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE work_area = #{workArea}
+        ORDER BY question_number
+    </select>
+
+    <!-- 查询通用问题 -->
+    <select id="findCommonQuestions" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE work_area IS NULL
+        ORDER BY question_number
+    </select>
+
+    <!-- 获取下一个问题序号 -->
+    <select id="getNextQuestionNumber" resultType="int">
+        SELECT COALESCE(MAX(question_number) + 1, 1)
+        FROM questions
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/src/main/resources/mybatis/mapper/SurveyResponseMapper.xml b/src/main/resources/mybatis/mapper/SurveyResponseMapper.xml
new file mode 100644
index 0000000..c7b0430
--- /dev/null
+++ b/src/main/resources/mybatis/mapper/SurveyResponseMapper.xml
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.SurveyResponseDao">
+    <!-- 结果映射 -->
+    <resultMap id="responseMap" type="ltd.qubit.survey.model.SurveyResponse">
+        <id property="id" column="id"/>
+        <result property="userId" column="user_id"/>
+        <result property="questionId" column="question_id"/>
+        <result property="selectedOptions" column="selected_options" typeHandler="org.apache.ibatis.type.JsonTypeHandler"/>
+        <result property="textAnswer" column="text_answer"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, user_id, question_id, selected_options, text_answer, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.SurveyResponse" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO survey_responses (user_id, question_id, selected_options, text_answer)
+        VALUES (#{userId}, #{questionId}, #{selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler}, #{textAnswer})
+    </insert>
+
+    <!-- 批量插入 -->
+    <insert id="batchInsert" parameterType="java.util.List">
+        INSERT INTO survey_responses (user_id, question_id, selected_options, text_answer)
+        VALUES
+        <foreach collection="list" item="item" separator=",">
+            (#{item.userId}, #{item.questionId},
+             #{item.selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler},
+             #{item.textAnswer})
+        </foreach>
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.SurveyResponse">
+        UPDATE survey_responses
+        SET user_id = #{userId},
+            question_id = #{questionId},
+            selected_options = #{selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler},
+            text_answer = #{textAnswer}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM survey_responses WHERE id = #{id}
+    </delete>
+
+    <!-- 根据用户ID删除 -->
+    <delete id="deleteByUserId" parameterType="long">
+        DELETE FROM survey_responses WHERE user_id = #{userId}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        ORDER BY user_id, question_id
+    </select>
+
+    <!-- 根据用户ID查询 -->
+    <select id="findByUserId" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE user_id = #{userId}
+        ORDER BY question_id
+    </select>
+
+    <!-- 根据问题ID查询 -->
+    <select id="findByQuestionId" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE question_id = #{questionId}
+        ORDER BY user_id
+    </select>
+
+    <!-- 根据用户ID和问题ID查询 -->
+    <select id="findByUserIdAndQuestionId" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE user_id = #{userId}
+        AND question_id = #{questionId}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/src/main/resources/mybatis/mapper/UserMapper.xml b/src/main/resources/mybatis/mapper/UserMapper.xml
new file mode 100644
index 0000000..da8010d
--- /dev/null
+++ b/src/main/resources/mybatis/mapper/UserMapper.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.UserDao">
+    <!-- 结果映射 -->
+    <resultMap id="userMap" type="ltd.qubit.survey.model.User">
+        <id property="id" column="id"/>
+        <result property="name" column="name"/>
+        <result property="phone" column="phone"/>
+        <result property="workArea" column="work_area"/>
+        <result property="positionType" column="position_type"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, name, phone, work_area, position_type, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.User" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO users (name, phone, work_area, position_type)
+        VALUES (#{name}, #{phone}, #{workArea}, #{positionType})
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.User">
+        UPDATE users
+        SET name = #{name},
+            phone = #{phone},
+            work_area = #{workArea},
+            position_type = #{positionType}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM users WHERE id = #{id}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        ORDER BY id
+    </select>
+
+    <!-- 根据手机号查询 -->
+    <select id="findByPhone" parameterType="string" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE phone = #{phone}
+    </select>
+
+    <!-- 根据工作领域查询 -->
+    <select id="findByWorkArea" parameterType="string" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE work_area = #{workArea}
+        ORDER BY id
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/src/main/resources/mybatis/mybatis-config.xml b/src/main/resources/mybatis/mybatis-config.xml
new file mode 100644
index 0000000..59d59f2
--- /dev/null
+++ b/src/main/resources/mybatis/mybatis-config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
+<configuration>
+    <settings>
+        <!-- 开启驼峰命名自动映射 -->
+        <setting name="mapUnderscoreToCamelCase" value="true"/>
+        <!-- 开启二级缓存 -->
+        <setting name="cacheEnabled" value="true"/>
+        <!-- 开启延迟加载 -->
+        <setting name="lazyLoadingEnabled" value="true"/>
+        <!-- 设置日志实现 -->
+        <setting name="logImpl" value="SLF4J"/>
+    </settings>
+
+    <typeHandlers>
+        <!-- 枚举类型处理器 -->
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.WorkArea"/>
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.PositionType"/>
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.QuestionType"/>
+    </typeHandlers>
+
+    <mappers>
+        <!-- 映射文件 -->
+        <mapper resource="mybatis/mapper/UserMapper.xml"/>
+        <mapper resource="mybatis/mapper/QuestionMapper.xml"/>
+        <mapper resource="mybatis/mapper/OptionMapper.xml"/>
+        <mapper resource="mybatis/mapper/SurveyResponseMapper.xml"/>
+    </mappers>
+</configuration>
\ No newline at end of file
diff --git a/src/main/resources/spring/applicationContext.xml b/src/main/resources/spring/applicationContext.xml
new file mode 100644
index 0000000..96c3210
--- /dev/null
+++ b/src/main/resources/spring/applicationContext.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xmlns:tx="http://www.springframework.org/schema/tx"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/context
+       http://www.springframework.org/schema/context/spring-context.xsd
+       http://www.springframework.org/schema/tx
+       http://www.springframework.org/schema/tx/spring-tx.xsd">
+
+    <!-- 加载属性文件 -->
+    <context:property-placeholder location="classpath:application.properties"/>
+
+    <!-- 开启注解扫描，排除Controller -->
+    <context:component-scan base-package="ltd.qubit.survey">
+        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+    </context:component-scan>
+
+    <!-- 配置事务注解驱动 -->
+    <tx:annotation-driven/>
+
+</beans>
\ No newline at end of file
diff --git a/src/main/resources/spring/spring-mvc.xml b/src/main/resources/spring/spring-mvc.xml
new file mode 100644
index 0000000..efabb13
--- /dev/null
+++ b/src/main/resources/spring/spring-mvc.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xmlns:mvc="http://www.springframework.org/schema/mvc"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/context
+       http://www.springframework.org/schema/context/spring-context.xsd
+       http://www.springframework.org/schema/mvc
+       http://www.springframework.org/schema/mvc/spring-mvc.xsd">
+
+    <!-- 开启Controller注解扫描 -->
+    <context:component-scan base-package="ltd.qubit.survey.controller" use-default-filters="false">
+        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+    </context:component-scan>
+
+    <!-- 开启SpringMVC注解驱动 -->
+    <mvc:annotation-driven>
+        <mvc:message-converters>
+            <!-- 配置JSON转换器 -->
+            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
+                <property name="objectMapper">
+                    <bean class="com.fasterxml.jackson.databind.ObjectMapper">
+                        <property name="dateFormat">
+                            <bean class="java.text.SimpleDateFormat">
+                                <constructor-arg value="yyyy-MM-dd HH:mm:ss"/>
+                            </bean>
+                        </property>
+                    </bean>
+                </property>
+            </bean>
+        </mvc:message-converters>
+    </mvc:annotation-driven>
+
+    <!-- 配置跨域支持 -->
+    <mvc:cors>
+        <mvc:mapping path="/**"
+                    allowed-origins="*"
+                    allowed-methods="GET,POST,PUT,DELETE,OPTIONS"
+                    allowed-headers="Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers"
+                    allow-credentials="true"
+                    max-age="3600"/>
+    </mvc:cors>
+
+</beans>
\ No newline at end of file
diff --git a/src/main/resources/spring/spring-mybatis.xml b/src/main/resources/spring/spring-mybatis.xml
new file mode 100644
index 0000000..8c7889f
--- /dev/null
+++ b/src/main/resources/spring/spring-mybatis.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd">
+
+    <!-- 配置数据源 -->
+    <bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
+        <property name="driverClassName" value="${jdbc.driver}"/>
+        <property name="jdbcUrl" value="${jdbc.url}"/>
+        <property name="username" value="${jdbc.username}"/>
+        <property name="password" value="${jdbc.password}"/>
+        <!-- 连接池配置 -->
+        <property name="minimumIdle" value="${jdbc.pool.minimumIdle}"/>
+        <property name="maximumPoolSize" value="${jdbc.pool.maximumPoolSize}"/>
+        <property name="idleTimeout" value="${jdbc.pool.idleTimeout}"/>
+        <property name="connectionTimeout" value="${jdbc.pool.connectionTimeout}"/>
+        <property name="connectionTestQuery" value="${jdbc.pool.connectionTestQuery}"/>
+    </bean>
+
+    <!-- 配置SqlSessionFactory -->
+    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
+        <property name="dataSource" ref="dataSource"/>
+        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
+        <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"/>
+    </bean>
+
+    <!-- 配置Mapper扫描器 -->
+    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
+        <property name="basePackage" value="ltd.qubit.survey.dao"/>
+        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
+    </bean>
+
+    <!-- 配置事务管理器 -->
+    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
+        <property name="dataSource" ref="dataSource"/>
+    </bean>
+
+</beans>
diff --git a/src/main/webapp/WEB-INF/web.xml b/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000..6662b81
--- /dev/null
+++ b/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
+         http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
+         version="4.0">
+
+    <display-name>LLM Survey API</display-name>
+
+    <!-- Spring配置文件位置 -->
+    <context-param>
+        <param-name>contextConfigLocation</param-name>
+        <param-value>
+            classpath:spring/applicationContext.xml
+            classpath:spring/spring-mybatis.xml
+        </param-value>
+    </context-param>
+
+    <!-- Spring监听器 -->
+    <listener>
+        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
+    </listener>
+
+    <!-- Spring MVC Servlet -->
+    <servlet>
+        <servlet-name>springmvc</servlet-name>
+        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
+        <init-param>
+            <param-name>contextConfigLocation</param-name>
+            <param-value>classpath:spring/spring-mvc.xml</param-value>
+        </init-param>
+        <load-on-startup>1</load-on-startup>
+    </servlet>
+
+    <servlet-mapping>
+        <servlet-name>springmvc</servlet-name>
+        <url-pattern>/</url-pattern>
+    </servlet-mapping>
+
+    <!-- 字符编码过滤器 -->
+    <filter>
+        <filter-name>characterEncodingFilter</filter-name>
+        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
+        <init-param>
+            <param-name>encoding</param-name>
+            <param-value>UTF-8</param-value>
+        </init-param>
+        <init-param>
+            <param-name>forceEncoding</param-name>
+            <param-value>true</param-value>
+        </init-param>
+    </filter>
+    <filter-mapping>
+        <filter-name>characterEncodingFilter</filter-name>
+        <url-pattern>/*</url-pattern>
+    </filter-mapping>
+</web-app>
\ No newline at end of file
diff --git a/target/classes/application.properties b/target/classes/application.properties
new file mode 100644
index 0000000..df235fd
--- /dev/null
+++ b/target/classes/application.properties
@@ -0,0 +1,18 @@
+# 数据库配置
+jdbc.driver=com.mysql.cj.jdbc.Driver
+jdbc.url=jdbc:mysql://127.0.0.1:3306/llm_survey?useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
+jdbc.username=dev
+jdbc.password=
+
+# 连接池配置
+jdbc.pool.minimumIdle=5
+jdbc.pool.maximumPoolSize=20
+jdbc.pool.idleTimeout=300000
+jdbc.pool.connectionTimeout=20000
+jdbc.pool.connectionTestQuery=SELECT 1
+
+# 日志配置
+logging.level.root=INFO
+logging.level.ltd.qubit.survey=DEBUG
+logging.level.org.springframework=INFO
+logging.level.org.mybatis=DEBUG
\ No newline at end of file
diff --git a/target/classes/ltd/qubit/survey/controller/GlobalExceptionHandler.class b/target/classes/ltd/qubit/survey/controller/GlobalExceptionHandler.class
new file mode 100644
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diff --git a/target/classes/ltd/qubit/survey/controller/SurveyController.class b/target/classes/ltd/qubit/survey/controller/SurveyController.class
new file mode 100644
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diff --git a/target/classes/ltd/qubit/survey/controller/UserController.class b/target/classes/ltd/qubit/survey/controller/UserController.class
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diff --git a/target/classes/ltd/qubit/survey/dao/BaseDao.class b/target/classes/ltd/qubit/survey/dao/BaseDao.class
new file mode 100644
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GIT binary patch
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diff --git a/target/classes/ltd/qubit/survey/dao/OptionDao.class b/target/classes/ltd/qubit/survey/dao/OptionDao.class
new file mode 100644
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GIT binary patch
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diff --git a/target/classes/ltd/qubit/survey/dao/QuestionDao.class b/target/classes/ltd/qubit/survey/dao/QuestionDao.class
new file mode 100644
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GIT binary patch
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diff --git a/target/classes/ltd/qubit/survey/dao/SurveyResponseDao.class b/target/classes/ltd/qubit/survey/dao/SurveyResponseDao.class
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GIT binary patch
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diff --git a/target/classes/ltd/qubit/survey/dao/UserDao.class b/target/classes/ltd/qubit/survey/dao/UserDao.class
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diff --git a/target/classes/ltd/qubit/survey/model/ErrorInfo.class b/target/classes/ltd/qubit/survey/model/ErrorInfo.class
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diff --git a/target/classes/ltd/qubit/survey/model/Option.class b/target/classes/ltd/qubit/survey/model/Option.class
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diff --git a/target/classes/ltd/qubit/survey/model/WorkArea.class b/target/classes/ltd/qubit/survey/model/WorkArea.class
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diff --git a/target/classes/ltd/qubit/survey/service/BaseService.class b/target/classes/ltd/qubit/survey/service/BaseService.class
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diff --git a/target/classes/ltd/qubit/survey/service/OptionService.class b/target/classes/ltd/qubit/survey/service/OptionService.class
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diff --git a/target/classes/ltd/qubit/survey/service/QuestionService.class b/target/classes/ltd/qubit/survey/service/QuestionService.class
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diff --git a/target/classes/ltd/qubit/survey/service/SurveyResponseService.class b/target/classes/ltd/qubit/survey/service/SurveyResponseService.class
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diff --git a/target/classes/ltd/qubit/survey/service/UserService.class b/target/classes/ltd/qubit/survey/service/UserService.class
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diff --git a/target/classes/ltd/qubit/survey/service/impl/OptionServiceImpl.class b/target/classes/ltd/qubit/survey/service/impl/OptionServiceImpl.class
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diff --git a/target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl$1.class b/target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl$1.class
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diff --git a/target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl.class b/target/classes/ltd/qubit/survey/service/impl/QuestionServiceImpl.class
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diff --git a/target/classes/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.class b/target/classes/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.class
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diff --git a/target/classes/ltd/qubit/survey/service/impl/UserServiceImpl.class b/target/classes/ltd/qubit/survey/service/impl/UserServiceImpl.class
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diff --git a/target/classes/mybatis/mapper/OptionMapper.xml b/target/classes/mybatis/mapper/OptionMapper.xml
new file mode 100644
index 0000000..51ae85e
--- /dev/null
+++ b/target/classes/mybatis/mapper/OptionMapper.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.OptionDao">
+    <!-- 结果映射 -->
+    <resultMap id="optionMap" type="ltd.qubit.survey.model.Option">
+        <id property="id" column="id"/>
+        <result property="questionId" column="question_id"/>
+        <result property="optionCode" column="option_code"/>
+        <result property="content" column="content"/>
+        <result property="requiresText" column="requires_text"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, question_id, option_code, content, requires_text, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.Option" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO options (question_id, option_code, content, requires_text)
+        VALUES (#{questionId}, #{optionCode}, #{content}, #{requiresText})
+    </insert>
+
+    <!-- 批量插入 -->
+    <insert id="batchInsert" parameterType="java.util.List">
+        INSERT INTO options (question_id, option_code, content, requires_text)
+        VALUES
+        <foreach collection="list" item="item" separator=",">
+            (#{item.questionId}, #{item.optionCode}, #{item.content}, #{item.requiresText})
+        </foreach>
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.Option">
+        UPDATE options
+        SET question_id = #{questionId},
+            option_code = #{optionCode},
+            content = #{content},
+            requires_text = #{requiresText}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM options WHERE id = #{id}
+    </delete>
+
+    <!-- 根据问题ID删除 -->
+    <delete id="deleteByQuestionId" parameterType="long">
+        DELETE FROM options WHERE question_id = #{questionId}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        ORDER BY question_id, option_code
+    </select>
+
+    <!-- 根据问题ID查询 -->
+    <select id="findByQuestionId" parameterType="long" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE question_id = #{questionId}
+        ORDER BY option_code
+    </select>
+
+    <!-- 根据问题ID和选项代码查询 -->
+    <select id="findByQuestionIdAndCode" resultMap="optionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM options
+        WHERE question_id = #{questionId}
+        AND option_code = #{optionCode}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/target/classes/mybatis/mapper/QuestionMapper.xml b/target/classes/mybatis/mapper/QuestionMapper.xml
new file mode 100644
index 0000000..4d3d902
--- /dev/null
+++ b/target/classes/mybatis/mapper/QuestionMapper.xml
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.QuestionDao">
+    <!-- 结果映射 -->
+    <resultMap id="questionMap" type="ltd.qubit.survey.model.Question">
+        <id property="id" column="id"/>
+        <result property="questionNumber" column="question_number"/>
+        <result property="content" column="content"/>
+        <result property="questionType" column="question_type"/>
+        <result property="workArea" column="work_area"/>
+        <result property="isRequired" column="is_required"/>
+        <result property="nextQuestionLogic" column="next_question_logic"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, question_number, content, question_type, work_area, is_required, next_question_logic, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.Question" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO questions (question_number, content, question_type, work_area, is_required, next_question_logic)
+        VALUES (#{questionNumber}, #{content}, #{questionType}, #{workArea}, #{isRequired}, #{nextQuestionLogic})
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.Question">
+        UPDATE questions
+        SET question_number = #{questionNumber},
+            content = #{content},
+            question_type = #{questionType},
+            work_area = #{workArea},
+            is_required = #{isRequired},
+            next_question_logic = #{nextQuestionLogic}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM questions WHERE id = #{id}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        ORDER BY question_number
+    </select>
+
+    <!-- 根据问题序号查询 -->
+    <select id="findByQuestionNumber" parameterType="int" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE question_number = #{questionNumber}
+    </select>
+
+    <!-- 根据工作领域查询 -->
+    <select id="findByWorkArea" parameterType="string" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE work_area = #{workArea}
+        ORDER BY question_number
+    </select>
+
+    <!-- 查询通用问题 -->
+    <select id="findCommonQuestions" resultMap="questionMap">
+        SELECT <include refid="baseColumns"/>
+        FROM questions
+        WHERE work_area IS NULL
+        ORDER BY question_number
+    </select>
+
+    <!-- 获取下一个问题序号 -->
+    <select id="getNextQuestionNumber" resultType="int">
+        SELECT COALESCE(MAX(question_number) + 1, 1)
+        FROM questions
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/target/classes/mybatis/mapper/SurveyResponseMapper.xml b/target/classes/mybatis/mapper/SurveyResponseMapper.xml
new file mode 100644
index 0000000..c7b0430
--- /dev/null
+++ b/target/classes/mybatis/mapper/SurveyResponseMapper.xml
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.SurveyResponseDao">
+    <!-- 结果映射 -->
+    <resultMap id="responseMap" type="ltd.qubit.survey.model.SurveyResponse">
+        <id property="id" column="id"/>
+        <result property="userId" column="user_id"/>
+        <result property="questionId" column="question_id"/>
+        <result property="selectedOptions" column="selected_options" typeHandler="org.apache.ibatis.type.JsonTypeHandler"/>
+        <result property="textAnswer" column="text_answer"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, user_id, question_id, selected_options, text_answer, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.SurveyResponse" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO survey_responses (user_id, question_id, selected_options, text_answer)
+        VALUES (#{userId}, #{questionId}, #{selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler}, #{textAnswer})
+    </insert>
+
+    <!-- 批量插入 -->
+    <insert id="batchInsert" parameterType="java.util.List">
+        INSERT INTO survey_responses (user_id, question_id, selected_options, text_answer)
+        VALUES
+        <foreach collection="list" item="item" separator=",">
+            (#{item.userId}, #{item.questionId},
+             #{item.selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler},
+             #{item.textAnswer})
+        </foreach>
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.SurveyResponse">
+        UPDATE survey_responses
+        SET user_id = #{userId},
+            question_id = #{questionId},
+            selected_options = #{selectedOptions,typeHandler=org.apache.ibatis.type.JsonTypeHandler},
+            text_answer = #{textAnswer}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM survey_responses WHERE id = #{id}
+    </delete>
+
+    <!-- 根据用户ID删除 -->
+    <delete id="deleteByUserId" parameterType="long">
+        DELETE FROM survey_responses WHERE user_id = #{userId}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        ORDER BY user_id, question_id
+    </select>
+
+    <!-- 根据用户ID查询 -->
+    <select id="findByUserId" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE user_id = #{userId}
+        ORDER BY question_id
+    </select>
+
+    <!-- 根据问题ID查询 -->
+    <select id="findByQuestionId" parameterType="long" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE question_id = #{questionId}
+        ORDER BY user_id
+    </select>
+
+    <!-- 根据用户ID和问题ID查询 -->
+    <select id="findByUserIdAndQuestionId" resultMap="responseMap">
+        SELECT <include refid="baseColumns"/>
+        FROM survey_responses
+        WHERE user_id = #{userId}
+        AND question_id = #{questionId}
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/target/classes/mybatis/mapper/UserMapper.xml b/target/classes/mybatis/mapper/UserMapper.xml
new file mode 100644
index 0000000..da8010d
--- /dev/null
+++ b/target/classes/mybatis/mapper/UserMapper.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="ltd.qubit.survey.dao.UserDao">
+    <!-- 结果映射 -->
+    <resultMap id="userMap" type="ltd.qubit.survey.model.User">
+        <id property="id" column="id"/>
+        <result property="name" column="name"/>
+        <result property="phone" column="phone"/>
+        <result property="workArea" column="work_area"/>
+        <result property="positionType" column="position_type"/>
+        <result property="createdAt" column="created_at"/>
+    </resultMap>
+
+    <!-- 基础列 -->
+    <sql id="baseColumns">
+        id, name, phone, work_area, position_type, created_at
+    </sql>
+
+    <!-- 插入 -->
+    <insert id="insert" parameterType="ltd.qubit.survey.model.User" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO users (name, phone, work_area, position_type)
+        VALUES (#{name}, #{phone}, #{workArea}, #{positionType})
+    </insert>
+
+    <!-- 更新 -->
+    <update id="update" parameterType="ltd.qubit.survey.model.User">
+        UPDATE users
+        SET name = #{name},
+            phone = #{phone},
+            work_area = #{workArea},
+            position_type = #{positionType}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 删除 -->
+    <delete id="deleteById" parameterType="long">
+        DELETE FROM users WHERE id = #{id}
+    </delete>
+
+    <!-- 根据ID查询 -->
+    <select id="findById" parameterType="long" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE id = #{id}
+    </select>
+
+    <!-- 查询所有 -->
+    <select id="findAll" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        ORDER BY id
+    </select>
+
+    <!-- 根据手机号查询 -->
+    <select id="findByPhone" parameterType="string" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE phone = #{phone}
+    </select>
+
+    <!-- 根据工作领域查询 -->
+    <select id="findByWorkArea" parameterType="string" resultMap="userMap">
+        SELECT <include refid="baseColumns"/>
+        FROM users
+        WHERE work_area = #{workArea}
+        ORDER BY id
+    </select>
+</mapper>
\ No newline at end of file
diff --git a/target/classes/mybatis/mybatis-config.xml b/target/classes/mybatis/mybatis-config.xml
new file mode 100644
index 0000000..59d59f2
--- /dev/null
+++ b/target/classes/mybatis/mybatis-config.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
+<configuration>
+    <settings>
+        <!-- 开启驼峰命名自动映射 -->
+        <setting name="mapUnderscoreToCamelCase" value="true"/>
+        <!-- 开启二级缓存 -->
+        <setting name="cacheEnabled" value="true"/>
+        <!-- 开启延迟加载 -->
+        <setting name="lazyLoadingEnabled" value="true"/>
+        <!-- 设置日志实现 -->
+        <setting name="logImpl" value="SLF4J"/>
+    </settings>
+
+    <typeHandlers>
+        <!-- 枚举类型处理器 -->
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.WorkArea"/>
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.PositionType"/>
+        <typeHandler handler="org.apache.ibatis.type.EnumTypeHandler"
+                     javaType="ltd.qubit.survey.model.QuestionType"/>
+    </typeHandlers>
+
+    <mappers>
+        <!-- 映射文件 -->
+        <mapper resource="mybatis/mapper/UserMapper.xml"/>
+        <mapper resource="mybatis/mapper/QuestionMapper.xml"/>
+        <mapper resource="mybatis/mapper/OptionMapper.xml"/>
+        <mapper resource="mybatis/mapper/SurveyResponseMapper.xml"/>
+    </mappers>
+</configuration>
\ No newline at end of file
diff --git a/target/classes/spring/applicationContext.xml b/target/classes/spring/applicationContext.xml
new file mode 100644
index 0000000..96c3210
--- /dev/null
+++ b/target/classes/spring/applicationContext.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xmlns:tx="http://www.springframework.org/schema/tx"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/context
+       http://www.springframework.org/schema/context/spring-context.xsd
+       http://www.springframework.org/schema/tx
+       http://www.springframework.org/schema/tx/spring-tx.xsd">
+
+    <!-- 加载属性文件 -->
+    <context:property-placeholder location="classpath:application.properties"/>
+
+    <!-- 开启注解扫描，排除Controller -->
+    <context:component-scan base-package="ltd.qubit.survey">
+        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+    </context:component-scan>
+
+    <!-- 配置事务注解驱动 -->
+    <tx:annotation-driven/>
+
+</beans>
\ No newline at end of file
diff --git a/target/classes/spring/spring-mvc.xml b/target/classes/spring/spring-mvc.xml
new file mode 100644
index 0000000..efabb13
--- /dev/null
+++ b/target/classes/spring/spring-mvc.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:context="http://www.springframework.org/schema/context"
+       xmlns:mvc="http://www.springframework.org/schema/mvc"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/context
+       http://www.springframework.org/schema/context/spring-context.xsd
+       http://www.springframework.org/schema/mvc
+       http://www.springframework.org/schema/mvc/spring-mvc.xsd">
+
+    <!-- 开启Controller注解扫描 -->
+    <context:component-scan base-package="ltd.qubit.survey.controller" use-default-filters="false">
+        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
+    </context:component-scan>
+
+    <!-- 开启SpringMVC注解驱动 -->
+    <mvc:annotation-driven>
+        <mvc:message-converters>
+            <!-- 配置JSON转换器 -->
+            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
+                <property name="objectMapper">
+                    <bean class="com.fasterxml.jackson.databind.ObjectMapper">
+                        <property name="dateFormat">
+                            <bean class="java.text.SimpleDateFormat">
+                                <constructor-arg value="yyyy-MM-dd HH:mm:ss"/>
+                            </bean>
+                        </property>
+                    </bean>
+                </property>
+            </bean>
+        </mvc:message-converters>
+    </mvc:annotation-driven>
+
+    <!-- 配置跨域支持 -->
+    <mvc:cors>
+        <mvc:mapping path="/**"
+                    allowed-origins="*"
+                    allowed-methods="GET,POST,PUT,DELETE,OPTIONS"
+                    allowed-headers="Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers"
+                    allow-credentials="true"
+                    max-age="3600"/>
+    </mvc:cors>
+
+</beans>
\ No newline at end of file
diff --git a/target/classes/spring/spring-mybatis.xml b/target/classes/spring/spring-mybatis.xml
new file mode 100644
index 0000000..8c7889f
--- /dev/null
+++ b/target/classes/spring/spring-mybatis.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans
+       http://www.springframework.org/schema/beans/spring-beans.xsd">
+
+    <!-- 配置数据源 -->
+    <bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
+        <property name="driverClassName" value="${jdbc.driver}"/>
+        <property name="jdbcUrl" value="${jdbc.url}"/>
+        <property name="username" value="${jdbc.username}"/>
+        <property name="password" value="${jdbc.password}"/>
+        <!-- 连接池配置 -->
+        <property name="minimumIdle" value="${jdbc.pool.minimumIdle}"/>
+        <property name="maximumPoolSize" value="${jdbc.pool.maximumPoolSize}"/>
+        <property name="idleTimeout" value="${jdbc.pool.idleTimeout}"/>
+        <property name="connectionTimeout" value="${jdbc.pool.connectionTimeout}"/>
+        <property name="connectionTestQuery" value="${jdbc.pool.connectionTestQuery}"/>
+    </bean>
+
+    <!-- 配置SqlSessionFactory -->
+    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
+        <property name="dataSource" ref="dataSource"/>
+        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
+        <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"/>
+    </bean>
+
+    <!-- 配置Mapper扫描器 -->
+    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
+        <property name="basePackage" value="ltd.qubit.survey.dao"/>
+        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
+    </bean>
+
+    <!-- 配置事务管理器 -->
+    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
+        <property name="dataSource" ref="dataSource"/>
+    </bean>
+
+</beans>
diff --git a/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
new file mode 100644
index 0000000..df03b31
--- /dev/null
+++ b/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
@@ -0,0 +1,27 @@
+ltd/qubit/survey/controller/GlobalExceptionHandler.class
+ltd/qubit/survey/dao/QuestionDao.class
+ltd/qubit/survey/model/PositionType.class
+ltd/qubit/survey/service/OptionService.class
+ltd/qubit/survey/controller/UserController.class
+ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.class
+ltd/qubit/survey/dao/SurveyResponseDao.class
+ltd/qubit/survey/dao/OptionDao.class
+ltd/qubit/survey/controller/QuestionController.class
+ltd/qubit/survey/service/impl/UserServiceImpl.class
+ltd/qubit/survey/service/impl/QuestionServiceImpl.class
+ltd/qubit/survey/model/SurveyResponse.class
+ltd/qubit/survey/model/User.class
+ltd/qubit/survey/service/QuestionService.class
+ltd/qubit/survey/service/impl/QuestionServiceImpl$1.class
+ltd/qubit/survey/service/UserService.class
+ltd/qubit/survey/dao/BaseDao.class
+ltd/qubit/survey/service/impl/OptionServiceImpl.class
+ltd/qubit/survey/dao/UserDao.class
+ltd/qubit/survey/model/ErrorInfo.class
+ltd/qubit/survey/controller/SurveyController.class
+ltd/qubit/survey/model/Question.class
+ltd/qubit/survey/model/WorkArea.class
+ltd/qubit/survey/service/SurveyResponseService.class
+ltd/qubit/survey/model/Option.class
+ltd/qubit/survey/model/QuestionType.class
+ltd/qubit/survey/service/BaseService.class
diff --git a/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
new file mode 100644
index 0000000..4678e84
--- /dev/null
+++ b/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
@@ -0,0 +1,26 @@
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/QuestionDao.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/UserService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/OptionService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/Question.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/QuestionService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/BaseService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/User.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/impl/OptionServiceImpl.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/impl/QuestionServiceImpl.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/SurveyResponseService.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/Option.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/controller/GlobalExceptionHandler.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/QuestionType.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/UserDao.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/SurveyResponse.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/impl/SurveyResponseServiceImpl.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/ErrorInfo.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/controller/UserController.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/service/impl/UserServiceImpl.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/SurveyResponseDao.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/controller/QuestionController.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/WorkArea.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/model/PositionType.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/BaseDao.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/controller/SurveyController.java
+/Volumes/working/qubit/project/llm-survey/backend/src/main/java/ltd/qubit/survey/dao/OptionDao.java