Mybatis面向接口编程

添加与Mapper接口的映射

<!--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">  
<!--namespace名称空间,用于绑定Mapper接口-->   
<mapper namespace="cn.clang.mybatis.mapper.UserMapper">  
	<insert id="insertUser">
		insert into t_user values(10,'小李','123456','男','上海')
	</insert>
</mapper>

创建Mapper接口

public interface UserMapper {
	/**
	 * MyBatis面向接口编程
	 * 1、映射文件的namespace和mapper接口的全类名保持一致
	 * 2、映射文件中SQL语句中的id要和mapper接口中的方法名保持一致
	 */
	 int inserUser();
}

引入配置文件

<mappers>
	<mapper resource="mappers/UserMapper.xml">
</mappers>

代码实现

public class MyBatisTest {
	@Test
	public void test(){
		//...
	}

}