spzx/spzx-manager/target/classes/mapper/SysUserMapper.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.atguigu.spzx.manger.mapper.SysUserMapper">
    <!-- 用于select查询公用抽取的列 -->
    <sql id="columns">
        id,username userName ,password,name,phone,avatar,description,status,create_time,update_time,is_deleted
    </sql>
    <!-- 根据username查询用户信息 -->
    <select id="selectByUsername" resultType="com.atguigu.spzx.model.entity.system.SysUser">
        select
        <include refid="columns"/>
        from sys_user
        where username = #{username};
    </select>
</mapper>