springboot2.0系列四（整合mybatis）

springboot整合使用mybatis

4.2.1、pom文件引入

<parent>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-starter-parent</artifactId>             <version>2.0.0.RELEASE</version>       </parent>       <dependencies>             <dependency>                   <groupId>org.springframework.boot</groupId>                   <artifactId>spring-boot-starter</artifactId>             </dependency>             <!-- 测试 -->             <dependency>                   <groupId>org.springframework.boot</groupId>                   <artifactId>spring-boot-starter-test</artifactId>                   <scope>test</scope>             </dependency>             <dependency>                   <groupId>org.mybatis.spring.boot</groupId>                   <artifactId>mybatis-spring-boot-starter</artifactId>                   <version>1.1.1</version>             </dependency>             <!-- mysql 依赖 -->             <dependency>                   <groupId>mysql</groupId>                   <artifactId>mysql-connector-java</artifactId>             </dependency>             <!-- springboot-web组件 -->             <dependency>                   <groupId>org.springframework.boot</groupId>                   <artifactId>spring-boot-starter-web</artifactId>             </dependency>       </dependencies>

 

4.2.2、配置文件引入

spring.datasource.url=jdbc:mysql://localhost:3306/test spring.datasource.username=root spring.datasource.password=root spring.datasource.driver-class-name=com.mysql.jdbc.Driver

 

4.2.3、Mapper代码

package com.example.demo.service; import org.apache.ibatis.annotations.Insert; import org.apache.ibatis.annotations.Mapper; import org.apache.ibatis.annotations.Param; import org.apache.ibatis.annotations.Select; import java.util.Map; @Mapper public interface UserMapper {     @Select("SELECT * FROM USERS WHERE NAME = #{name}")     Map findByName(@Param("name") String name);     @Insert("INSERT INTO USERS(NAME, AGE) VALUES(#{name}, #{age})")     int insert(@Param("name") String name, @Param("age") Integer age); }

4.2.3、Controller代码

package com.example.demo.controller; import com.example.demo.service.UserMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.util.Map; @RestController public class UsersController {     @Autowired     UserMapper userMapper;     @RequestMapping("/insertUser")     public void insertUser(String name,Integer age) {         userMapper.insert(name,age);     }     @RequestMapping("/user")     public Map findUser(String name) {       Map<String,Object> result= userMapper.findByName(name);       return result;     } }

 

4.2.4、启动方式

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

效果