mybatis注解开发实例Mybatis基于注解的增删改查

mapper接口代码如下

package javacto.taobao.com;
import com.javacto.po.User;
import com.javacto.po.UserVo;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface UserMapper {
    /**
     * 根据用户ID来查询用户信息
     * javacto.taobao.com
     * @param id
     * @return
     */
    @Select("SELECT * FROM TUSER WHERE uid=${id }")
    public User findById(@Param("id") int id);

    /**
     * 模糊查询
     * @param uname
     * @return
     */
    @Select("SELECT * FROM TUSER WHERE uname LIKE concat(concat('%',#{uname}),'%')")
    public List findByName(String uname);

    /**
     * 查询所有
	 *javacto.ke.qq.com
     * @return
     */
    @Select("SELECT * FROM TUSER")
    public List findUserList();

    /**
     * 添加
     * @param User
     * @return
     */
    @Insert("INSERT INTO TUSER(uname,upassword,usex,udate,uaddress,ustate)" +
            " VALUES(#{uname},#{upassword},#{usex},NOW(),#{uaddress},0);")
    public int insertUser(User user);

    /**
     * 删除
     * @param id
     * @return
     */
    @Delete("DELETE FROM TUSER WHERE uid=${id}")
    public int deleteUser(@Param(("id")) int id);
}

配置mappers

测试代如如下：

public class TestUserMapper {
    //javacto.ke.qq.com
    SqlSessionFactory sqlSessionFactory;
    @Before
    public void setUp() throws IOException {
        String sqlMapConfig="SqlMapConfig.xml";
        InputStream is = Resources.getResourceAsStream(sqlMapConfig);
        sqlSessionFactory = new SqlSessionFactoryBuilder().build(is);
    }

    //javacto.taobao.com   
    @Test
    public void testfindById(){
        SqlSession sqlSession = sqlSessionFactory.openSession();
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
     
		User user=userMapper.findById(1);
        System.out.println(user);
    }
}