看了很多人写的博客，要么太复杂，要么没有添加xml的方式，自己亲自配置了一下，供各位参考
项目截图
image
添加pom文件
<!-- 设置mybatis -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.4</version>
</dependency>
添加Mapper类
@Mapper
public interface UserMapper {
User findUserById(Integer id);
}
添加mapper.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.mapper.UserMapper">
<resultMap id = "result" type = "com.example.domain.User">
<result property = "id" column = "id"/>
<result property = "name" column = "name"/>
</resultMap>
<select id = "findUserById" resultMap = "result">
SELECT * FROM act_user where id = #{id};
</select>
</mapper>
在application.properties添加数据库和mybatis配置
# mysql
spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
# mybatis
# 对应实体类的包名
mybatis.typeAliasesPackage=com.example.domain
# mapper.xml文件所在位置，我放到了resources下面
mybatis.mapperLocations=classpath:**/mapper/*.xml
配置启动类，添加MapperScan注解
@SpringBootApplication
@MapperScan("com.example.mapper")
public class SpringBootDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootDemoApplication.class, args);
}
}
添加日志输出，在logback-spring.xml中添加这一行即可
<logger name="com.example.mapper" level="DEBUG"></logger>
运行效果
image
欢迎访问我的博客，一起进步
