修改密码——持久层

1.持久层

1.1规划sql语句

update t_user set password=? where uid = ?

1.2做映射

Integer UpdatePasswordByUid(String uid,String password);

 

 <update id="UpdatePasswordByUid">
        update t_user set password = #{password} where uid = ${uid}
 </update>

 

1.3测试

@Test
    public void updatepassword()
    {
        Integer integer = userMapper.UpdatePasswordByUid(7, "6666");
        System.out.println(integer);
        User byUid = userMapper.findByUid(7);
        System.out.println(byUid);
    }