Mybatis更新单条记录

痛定思痛。 2022-06-15 03:36 238阅读 0赞

Mybatis更新单条记录

parameterType:需要更新的用户信息
    #{
       id}：从输入的user对象中获取ID属性，名称需要和属性名一致

映射文件

<update id="updateUserByID" parameterType="com.hl.myabtis.first.beas.User">
            update user set username = #{
       username},birthday = #{
       birthday},sex = #{
       sex},address = #{
       address} where id = #{
       id}
    </update>

测试用例：

@Test
        public void testUpdateUser() throws Exception{
            //创建会话工厂
            String resource = "SqlMapConfig.xml";
            InputStream inputStream = Resources.getResourceAsStream(resource );
            SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
            //通过工厂得到SqlSession
            SqlSession sqlSession = sqlSessionFactory.openSession();
            //把高月改名为姬如千泷
            User user = new User();
            user.setId(2);
            user.setUsername("姬如千泷");
            user.setAddress("秦时明月之君临天下");
            user.setSex('0');
            user.setBirthday(new Date());
            //使用SqlSession操作数据库
            int result = sqlSession.update("test.updateUserByID", user);
            System.out.println(result);
            //手动提交事务
            sqlSession.commit();
            //关闭资源
            sqlSession.close();
        }

可能发生There is no getter for property named ‘value’ in ‘class com.hl.myabtis.first.beas.User’异常，参考：[http://blog.csdn.net/leisure\_life/article/details/72636547][http_blog.csdn.net_leisure_life_article_details_72636547]

[http_blog.csdn.net_leisure_life_article_details_72636547]: http://blog.csdn.net/leisure_life/article/details/72636547