Spring Boot整合MyBatis+MySQL+Redis单表CRUD教程

环境准备

1. Redis安装（Windows）

bash 复制代码

# 下载Redis for Windows
# 访问: https://github.com/tporadowski/redis/releases
# 下载Redis-x64-5.0.14.1.msi并安装

# 启动Redis服务
redis-server

# 测试连接
redis-cli
ping  # 应该返回PONG

2. 项目创建

使用IDEA创建Spring Boot项目，或访问 https://start.spring.io/

项目依赖配置

pom.xml

xml 复制代码

<?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>
    
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.0</version>
        <relativePath/>
    </parent>
    
    <groupId>com.example</groupId>
    <artifactId>user-crud</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>user-crud</name>
    
    <properties>
        <java.version>11</java.version>
    </properties>
    
    <dependencies>
        <!-- Spring Boot Web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        
        <!-- MyBatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.2</version>
        </dependency>
        
        <!-- MySQL驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        
        <!-- Redis -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        
        <!-- JSON处理 -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        
        <!-- Lombok（可选，简化代码） -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        
        <!-- 测试 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

数据库准备

创建数据库和表

sql 复制代码

-- 创建数据库
CREATE DATABASE user_management CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

USE user_management;

-- 创建用户表
CREATE TABLE users (
    id BIGINT AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(50) NOT NULL UNIQUE,
    email VARCHAR(100) NOT NULL,
    phone VARCHAR(20),
    age INT,
    created_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);

-- 插入测试数据
INSERT INTO users (username, email, phone, age) VALUES
('zhangsan', 'zhangsan@example.com', '13800138001', 25),
('lisi', 'lisi@example.com', '13800138002', 30),
('wangwu', 'wangwu@example.com', '13800138003', 28);

配置文件

application.yml

yaml 复制代码

server:
  port: 8080

spring:
  # 数据源配置
  datasource:
    url: jdbc:mysql://localhost:3306/user_management?useUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=GMT%2B8
    username: root
    password: your_password  # 替换为你的MySQL密码
    driver-class-name: com.mysql.cj.jdbc.Driver
    
  # Redis配置
  redis:
    host: localhost
    port: 6379
    timeout: 3000
    jedis:
      pool:
        max-active: 20
        max-idle: 10
        min-idle: 0

# MyBatis配置
mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.example.usercrud.entity
  configuration:
    map-underscore-to-camel-case: true
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

# 日志配置
logging:
  level:
    com.example.usercrud.mapper: debug

代码实现

1. 实体类

java 复制代码

// src/main/java/com/example/usercrud/entity/User.java
package com.example.usercrud.entity;

import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.Data;
import java.io.Serializable;
import java.time.LocalDateTime;

@Data
public class User implements Serializable {
    private Long id;
    private String username;
    private String email;
    private String phone;
    private Integer age;
    
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private LocalDateTime createdTime;
    
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private LocalDateTime updatedTime;
}

2. Mapper接口

java 复制代码

// src/main/java/com/example/usercrud/mapper/UserMapper.java
package com.example.usercrud.mapper;

import com.example.usercrud.entity.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import java.util.List;

@Mapper
public interface UserMapper {
    
    // 插入用户
    int insert(User user);
    
    // 根据ID删除用户
    int deleteById(@Param("id") Long id);
    
    // 更新用户
    int update(User user);
    
    // 根据ID查询用户
    User selectById(@Param("id") Long id);
    
    // 查询所有用户
    List<User> selectAll();
    
    // 根据用户名查询
    User selectByUsername(@Param("username") String username);
    
    // 分页查询
    List<User> selectByPage(@Param("offset") int offset, @Param("size") int size);
    
    // 统计总数
    long count();
}

3. Mapper XML

xml 复制代码

<!-- src/main/resources/mapper/UserMapper.xml -->
<?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="com.example.usercrud.mapper.UserMapper">
    
    <!-- 结果映射 -->
    <resultMap id="UserResultMap" type="User">
        <id property="id" column="id"/>
        <result property="username" column="username"/>
        <result property="email" column="email"/>
        <result property="phone" column="phone"/>
        <result property="age" column="age"/>
        <result property="createdTime" column="created_time"/>
        <result property="updatedTime" column="updated_time"/>
    </resultMap>
    
    <!-- 基础列 -->
    <sql id="Base_Column_List">
        id, username, email, phone, age, created_time, updated_time
    </sql>
    
    <!-- 插入 -->
    <insert id="insert" parameterType="User" useGeneratedKeys="true" keyProperty="id">
        INSERT INTO users (username, email, phone, age)
        VALUES (#{username}, #{email}, #{phone}, #{age})
    </insert>
    
    <!-- 删除 -->
    <delete id="deleteById">
        DELETE FROM users WHERE id = #{id}
    </delete>
    
    <!-- 更新 -->
    <update id="update" parameterType="User">
        UPDATE users 
        SET username = #{username},
            email = #{email},
            phone = #{phone},
            age = #{age}
        WHERE id = #{id}
    </update>
    
    <!-- 根据ID查询 -->
    <select id="selectById" resultMap="UserResultMap">
        SELECT <include refid="Base_Column_List"/>
        FROM users
        WHERE id = #{id}
    </select>
    
    <!-- 查询所有 -->
    <select id="selectAll" resultMap="UserResultMap">
        SELECT <include refid="Base_Column_List"/>
        FROM users
        ORDER BY created_time DESC
    </select>
    
    <!-- 根据用户名查询 -->
    <select id="selectByUsername" resultMap="UserResultMap">
        SELECT <include refid="Base_Column_List"/>
        FROM users
        WHERE username = #{username}
    </select>
    
    <!-- 分页查询 -->
    <select id="selectByPage" resultMap="UserResultMap">
        SELECT <include refid="Base_Column_List"/>
        FROM users
        ORDER BY created_time DESC
        LIMIT #{offset}, #{size}
    </select>
    
    <!-- 统计总数 -->
    <select id="count" resultType="long">
        SELECT COUNT(*) FROM users
    </select>
    
</mapper>

4. Service服务层

java 复制代码

// src/main/java/com/example/usercrud/service/UserService.java
package com.example.usercrud.service;

import com.example.usercrud.entity.User;
import java.util.List;

public interface UserService {
    
    // 创建用户
    User createUser(User user);
    
    // 删除用户
    boolean deleteUser(Long id);
    
    // 更新用户
    User updateUser(User user);
    
    // 根据ID查询用户
    User getUserById(Long id);
    
    // 查询所有用户
    List<User> getAllUsers();
    
    // 分页查询用户
    List<User> getUsersByPage(int page, int size);
    
    // 统计用户总数
    long getUserCount();
}
// src/main/java/com/example/usercrud/service/impl/UserServiceImpl.java
package com.example.usercrud.service.impl;

import com.example.usercrud.entity.User;
import com.example.usercrud.mapper.UserMapper;
import com.example.usercrud.service.UserService;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.concurrent.TimeUnit;

@Slf4j
@Service
public class UserServiceImpl implements UserService {
    
    @Autowired
    private UserMapper userMapper;
    
    @Autowired
    private StringRedisTemplate stringRedisTemplate;
    
    @Autowired
    private ObjectMapper objectMapper;
    
    private static final String USER_CACHE_PREFIX = "user:";
    private static final String USER_LIST_CACHE_KEY = "user:list";
    private static final int CACHE_EXPIRE_HOURS = 2;
    
    @Override
    public User createUser(User user) {
        try {
            int result = userMapper.insert(user);
            if (result > 0) {
                // 清除列表缓存
                stringRedisTemplate.delete(USER_LIST_CACHE_KEY);
                log.info("用户创建成功，ID: {}", user.getId());
                return user;
            }
        } catch (Exception e) {
            log.error("创建用户失败", e);
            throw new RuntimeException("创建用户失败");
        }
        return null;
    }
    
    @Override
    public boolean deleteUser(Long id) {
        try {
            int result = userMapper.deleteById(id);
            if (result > 0) {
                // 删除缓存
                stringRedisTemplate.delete(USER_CACHE_PREFIX + id);
                stringRedisTemplate.delete(USER_LIST_CACHE_KEY);
                log.info("用户删除成功，ID: {}", id);
                return true;
            }
        } catch (Exception e) {
            log.error("删除用户失败，ID: {}", id, e);
            throw new RuntimeException("删除用户失败");
        }
        return false;
    }
    
    @Override
    public User updateUser(User user) {
        try {
            int result = userMapper.update(user);
            if (result > 0) {
                // 更新缓存
                String cacheKey = USER_CACHE_PREFIX + user.getId();
                String userJson = objectMapper.writeValueAsString(user);
                stringRedisTemplate.opsForValue().set(cacheKey, userJson, CACHE_EXPIRE_HOURS, TimeUnit.HOURS);
                
                // 清除列表缓存
                stringRedisTemplate.delete(USER_LIST_CACHE_KEY);
                log.info("用户更新成功，ID: {}", user.getId());
                return user;
            }
        } catch (Exception e) {
            log.error("更新用户失败，ID: {}", user.getId(), e);
            throw new RuntimeException("更新用户失败");
        }
        return null;
    }
    
    @Override
    public User getUserById(Long id) {
        String cacheKey = USER_CACHE_PREFIX + id;
        
        try {
            // 先从缓存获取
            String userJson = stringRedisTemplate.opsForValue().get(cacheKey);
            if (userJson != null) {
                log.info("从缓存获取用户，ID: {}", id);
                return objectMapper.readValue(userJson, User.class);
            }
            
            // 缓存未命中，从数据库查询
            User user = userMapper.selectById(id);
            if (user != null) {
                // 写入缓存
                userJson = objectMapper.writeValueAsString(user);
                stringRedisTemplate.opsForValue().set(cacheKey, userJson, CACHE_EXPIRE_HOURS, TimeUnit.HOURS);
                log.info("从数据库获取用户并缓存，ID: {}", id);
            }
            return user;
        } catch (Exception e) {
            log.error("获取用户失败，ID: {}", id, e);
            // 缓存异常时直接查数据库
            return userMapper.selectById(id);
        }
    }
    
    @Override
    public List<User> getAllUsers() {
        try {
            // 先从缓存获取
            String listJson = stringRedisTemplate.opsForValue().get(USER_LIST_CACHE_KEY);
            if (listJson != null) {
                log.info("从缓存获取用户列表");
                return objectMapper.readValue(listJson, 
                    objectMapper.getTypeFactory().constructCollectionType(List.class, User.class));
            }
            
            // 缓存未命中，从数据库查询
            List<User> users = userMapper.selectAll();
            if (!users.isEmpty()) {
                // 写入缓存
                listJson = objectMapper.writeValueAsString(users);
                stringRedisTemplate.opsForValue().set(USER_LIST_CACHE_KEY, listJson, CACHE_EXPIRE_HOURS, TimeUnit.HOURS);
                log.info("从数据库获取用户列表并缓存，数量: {}", users.size());
            }
            return users;
        } catch (Exception e) {
            log.error("获取用户列表失败", e);
            // 缓存异常时直接查数据库
            return userMapper.selectAll();
        }
    }
    
    @Override
    public List<User> getUsersByPage(int page, int size) {
        int offset = (page - 1) * size;
        return userMapper.selectByPage(offset, size);
    }
    
    @Override
    public long getUserCount() {
        return userMapper.count();
    }
}

5. Controller控制器

java 复制代码

// src/main/java/com/example/usercrud/controller/UserController.java
package com.example.usercrud.controller;

import com.example.usercrud.entity.User;
import com.example.usercrud.service.UserService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@RestController
@RequestMapping("/api/users")
public class UserController {
    
    @Autowired
    private UserService userService;
    
    /**
     * 创建用户
     */
    @PostMapping
    public ResponseEntity<Map<String, Object>> createUser(@RequestBody User user) {
        Map<String, Object> response = new HashMap<>();
        try {
            User createdUser = userService.createUser(user);
            if (createdUser != null) {
                response.put("success", true);
                response.put("message", "用户创建成功");
                response.put("data", createdUser);
                return ResponseEntity.ok(response);
            } else {
                response.put("success", false);
                response.put("message", "用户创建失败");
                return ResponseEntity.badRequest().body(response);
            }
        } catch (Exception e) {
            log.error("创建用户异常", e);
            response.put("success", false);
            response.put("message", "系统异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(response);
        }
    }
    
    /**
     * 删除用户
     */
    @DeleteMapping("/{id}")
    public ResponseEntity<Map<String, Object>> deleteUser(@PathVariable Long id) {
        Map<String, Object> response = new HashMap<>();
        try {
            boolean deleted = userService.deleteUser(id);
            if (deleted) {
                response.put("success", true);
                response.put("message", "用户删除成功");
                return ResponseEntity.ok(response);
            } else {
                response.put("success", false);
                response.put("message", "用户删除失败，用户不存在");
                return ResponseEntity.badRequest().body(response);
            }
        } catch (Exception e) {
            log.error("删除用户异常", e);
            response.put("success", false);
            response.put("message", "系统异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(response);
        }
    }
    
    /**
     * 更新用户
     */
    @PutMapping("/{id}")
    public ResponseEntity<Map<String, Object>> updateUser(@PathVariable Long id, @RequestBody User user) {
        Map<String, Object> response = new HashMap<>();
        try {
            user.setId(id);
            User updatedUser = userService.updateUser(user);
            if (updatedUser != null) {
                response.put("success", true);
                response.put("message", "用户更新成功");
                response.put("data", updatedUser);
                return ResponseEntity.ok(response);
            } else {
                response.put("success", false);
                response.put("message", "用户更新失败");
                return ResponseEntity.badRequest().body(response);
            }
        } catch (Exception e) {
            log.error("更新用户异常", e);
            response.put("success", false);
            response.put("message", "系统异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(response);
        }
    }
    
    /**
     * 根据ID查询用户
     */
    @GetMapping("/{id}")
    public ResponseEntity<Map<String, Object>> getUserById(@PathVariable Long id) {
        Map<String, Object> response = new HashMap<>();
        try {
            User user = userService.getUserById(id);
            if (user != null) {
                response.put("success", true);
                response.put("data", user);
                return ResponseEntity.ok(response);
            } else {
                response.put("success", false);
                response.put("message", "用户不存在");
                return ResponseEntity.notFound().build();
            }
        } catch (Exception e) {
            log.error("查询用户异常", e);
            response.put("success", false);
            response.put("message", "系统异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(response);
        }
    }
    
    /**
     * 查询所有用户
     */
    @GetMapping
    public ResponseEntity<Map<String, Object>> getAllUsers() {
        Map<String, Object> response = new HashMap<>();
        try {
            List<User> users = userService.getAllUsers();
            response.put("success", true);
            response.put("data", users);
            response.put("total", users.size());
            return ResponseEntity.ok(response);
        } catch (Exception e) {
            log.error("查询用户列表异常", e);
            response.put("success", false);
            response.put("message", "系统异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(response);
        }
    }
    
    /**
     * 分页查询用户
     */
    @GetMapping("/page")
    public ResponseEntity<Map<String, Object>> getUsersByPage(
            @RequestParam(defaultValue = "1") int page,
            @RequestParam(defaultValue = "10") int size) {
        Map<String, Object> response = new HashMap<>();
        try {
            List<User> users = userService.getUsersByPage(page, size);
            long total = userService.getUserCount();
            
            response.put("success", true);
            response.put("data", users);
            response.put("page", page);
            response.put("size", size);
            response.put("total", total);
            response.put("totalPages", (total + size - 1) / size);
            return ResponseEntity.ok(response);
        } catch (Exception e) {
            log.error("分页查询用户异常", e);
            response.put("success", false);
            response.put("message", "系统异常：" + e.getMessage());
            return ResponseEntity.internalServerError().body(response);
        }
    }
}

6. 主启动类

java 复制代码

// src/main/java/com/example/usercrud/UserCrudApplication.java
package com.example.usercrud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class UserCrudApplication {
    public static void main(String[] args) {
        SpringApplication.run(UserCrudApplication.class, args);
    }
}

7. Redis配置类

java 复制代码

// src/main/java/com/example/usercrud/config/RedisConfig.java
package com.example.usercrud.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
public class RedisConfig {
    
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(connectionFactory);
        
        // JSON序列化配置
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        
        // String序列化
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        
        // key采用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        template.setHashKeySerializer(stringRedisSerializer);
        
        // value序列化方式采用jackson
        template.setValueSerializer(jackson2JsonRedisSerializer);
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        
        template.afterPropertiesSet();
        return template;
    }
    
    @Bean
    public StringRedisTemplate stringRedisTemplate(RedisConnectionFactory connectionFactory) {
        return new StringRedisTemplate(connectionFactory);
    }
    
    @Bean
    public ObjectMapper objectMapper() {
        return new ObjectMapper();
    }
}

API测试

使用Postman或IDEA HTTP Client测试

http 复制代码

### 1. 创建用户
POST http://localhost:8080/api/users
Content-Type: application/json

{
  "username": "testuser",
  "email": "test@example.com",
  "phone": "13800138000",
  "age": 25
}

### 2. 查询所有用户
GET http://localhost:8080/api/users

### 3. 根据ID查询用户
GET http://localhost:8080/api/users/1

### 4. 更新用户
PUT http://localhost:8080/api/users/1
Content-Type: application/json

{
  "username": "updateduser",
  "email": "updated@example.com",
  "phone": "13800138001",
  "age": 30
}

### 5. 分页查询
GET http://localhost:8080/api/users/page?page=1&size=5

### 6. 删除用户
DELETE http://localhost:8080/api/users/1

运行项目

确保MySQL和Redis服务已启动
修改application.yml中的数据库密码
运行主启动类UserCrudApplication
访问 http://localhost:8080/api/users 测试接口

功能特点

✅ 完整的CRUD操作
✅ MyBatis XML配置
✅ Redis缓存集成
✅ 统一返回格式
✅ 异常处理
✅ 分页查询
✅ 日志记录

学习要点

Spring Boot自动配置：理解starter的作用
MyBatis映射：XML配置与注解的使用
Redis缓存策略：缓存更新和失效机制
RESTful API设计：HTTP方法的正确使用
异常处理：统一的错误处理机制

这个项目提供了一个完整的单表CRUD服务示例，适合初学者学习和实践。

我来为你提供一个完整的Spring Boot整合MyBatis、MySQL、Redis开发单表CRUD服务的教程。我为你创建了一个完整的Spring Boot整合MyBatis、MySQL、Redis开发单表CRUD服务的教程。这个教程特别适合初学者，包含了：

主要内容：

环境准备 - Redis安装指导（Windows版本）
项目配置 - 完整的Maven依赖和配置文件
数据库设计 - 用户表结构和测试数据
完整代码实现

：
- 实体类（User）
- Mapper接口和XML映射
- Service服务层（集成Redis缓存）
- Controller控制器（RESTful API）
- 配置类

核心功能：

✅ 完整CRUD操作：创建、读取、更新、删除
✅ Redis缓存：自动缓存用户数据，提高查询性能
✅ 分页查询：支持分页获取用户列表
✅ 异常处理：统一的错误处理机制
✅ RESTful API：符合REST规范的接口设计

学习要点：

MyBatis集成：XML配置方式，适合复杂SQL
Redis缓存策略：查询缓存、更新时清除缓存
Spring Boot自动配置：理解starter依赖的便利性
分层架构：Controller → Service → Mapper的标准结构

快速开始：

按教程安装Redis
创建MySQL数据库和表
修改application.yml中的数据库密码
复制代码到对应目录
运行项目，使用Postman测试API

这个项目提供了企业级开发的基础框架，你可以在此基础上扩展更多功能。有什么问题随时问我！

主要内容：

环境准备 - Redis安装指导（Windows版本）
项目配置 - 完整的Maven依赖和配置文件
数据库设计 - 用户表结构和测试数据
完整代码实现

：
- 实体类（User）
- Mapper接口和XML映射
- Service服务层（集成Redis缓存）
- Controller控制器（RESTful API）
- 配置类

核心功能：

✅ 完整CRUD操作：创建、读取、更新、删除
✅ Redis缓存：自动缓存用户数据，提高查询性能
✅ 分页查询：支持分页获取用户列表
✅ 异常处理：统一的错误处理机制
✅ RESTful API：符合REST规范的接口设计

学习要点：

MyBatis集成：XML配置方式，适合复杂SQL
Redis缓存策略：查询缓存、更新时清除缓存
Spring Boot自动配置：理解starter依赖的便利性
分层架构：Controller → Service → Mapper的标准结构

快速开始：

按教程安装Redis
创建MySQL数据库和表
修改application.yml中的数据库密码
复制代码到对应目录
运行项目，使用Postman测试API