springboot mybatis redis整合

### Spring Boot、MyBatis和Redis整合示例项目教程 #### 配置环境准备 为了实现Spring Boot、MyBatis以及Redis的集成，首先需要创建一个新的Spring Boot项目[^3]。 ```xml <dependencies> <!-- MyBatis Starter --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.2.0</version> </dependency> <!-- Redis Starter --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <!-- MySQL Connector (或其他数据库驱动) --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <!-- Other dependencies... --> </dependencies> ``` #### 数据源配置 在`application.yml`文件中定义MySQL的数据源属性： ```yaml spring: datasource: url: jdbc:mysql://localhost:3306/your_database?useSSL=false&serverTimezone=UTC username: root password: your_password driver-class-name: com.mysql.cj.jdbc.Driver redis: host: localhost port: 6379 ``` #### Redis配置类 针对Redis部分，在Java代码里设置相应的Bean以便于后续的操作。这里采用的是Lettuce作为客户端库来访问Redis实例[^1]。 ```java @Configuration public class RedisConfig { @Value("${spring.redis.host}") private String redisHost; @Value("${spring.redis.port}") private int redisPort; @Bean public LettuceConnectionFactory lettuceConnectionFactory() { RedisSentinelConfiguration sentinelConfig = new RedisSentinelConfiguration() .master("mymaster") // 主节点名称 .sentinel(redisHost, redisPort); // 哨兵地址 return new LettuceConnectionFactory(sentinelConfig); } @Bean public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory factory){ final RedisTemplate<String, Object> template = new RedisTemplate<>(); template.setKeySerializer(new StringRedisSerializer()); template.setValueSerializer(new GenericJackson2JsonRedisSerializer()); template.setConnectionFactory(factory); return template; } } ``` #### MyBatis映射接口和服务层 对于持久化逻辑，则利用MyBatis提供的Mapper接口完成SQL语句封装；而业务处理则交由Service组件负责调用这些方法并返回给控制器层。 ```java // UserMapper.java @Mapper public interface UserMapper { List<User> findAll(); } // UserService.java @Service public class UserService { @Autowired private UserMapper userMapper; public List<User> getAllUsers(){ return this.userMapper.findAll(); } } ``` #### 控制器层 最后构建RESTful API端点用于接收HTTP请求并向前端展示查询结果。 ```java @RestController @RequestMapping("/api/users") public class UserController { @Autowired private UserService userService; @GetMapping("") public ResponseEntity<List<User>> getUsers() { try{ List<User> users = userService.getAllUsers(); if(users.isEmpty()){ return new ResponseEntity<>(HttpStatus.NO_CONTENT); }else{ return new ResponseEntity<>(users, HttpStatus.OK); } }catch(Exception e){ return new ResponseEntity<>(null, HttpStatus.INTERNAL_SERVER_ERROR); } } } ```

整合Spring Boot、MyBatis、Redis和Spring Security的步骤如下： 1. 添加依赖：在项目的pom.xml文件中添加以下依赖： ```xml <dependencies> <!-- Spring Boot --> <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> </dependency> <!-- Redis --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <!-- Spring Security --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency> </dependencies> ``` 2. 配置数据库：在application.properties或application.yml文件中配置数据库连接信息。 3. 配置MyBatis：创建MyBatis的Mapper接口和对应的XML文件，配置Mapper接口扫描路径。 4. 配置Redis：在application.properties或application.yml文件中配置Redis连接信息。 5. 配置Spring Security：创建一个继承自WebSecurityConfigurerAdapter的配置类，并重写configure方法来配置安全规则。 示例代码： ```java @Configuration @EnableWebSecurity public class SecurityConfig extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests() .antMatchers("/admin/**").hasRole("ADMIN") .antMatchers("/user/**").hasRole("USER") .anyRequest().authenticated() .and() .formLogin(); } @Autowired public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception { auth.inMemoryAuthentication() .withUser("admin").password("{noop}admin").roles("ADMIN") .and() .withUser("user").password("{noop}user").roles("USER"); } } ``` 6. 编写业务代码：编写Controller和Service层的代码来处理业务逻辑和数据访问。 以上是整合Spring Boot、MyBatis、Redis和Spring Security的基本步骤，你可以根据具体需求进行更详细的配置和开发。