exam-api/target/classes/mapper/sys/depart/SysDepartMapper.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.ydl.exam.modules.sys.depart.mapper.SysDepartMapper">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.ydl.exam.modules.sys.depart.entity.SysDepart">
        <id column="id" property="id" />
        <result column="dept_type" property="deptType" />
        <result column="parent_id" property="parentId" />
        <result column="dept_name" property="deptName" />
        <result column="dept_code" property="deptCode" />
        <result column="sort" property="sort" />
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        `id`,`dept_type`,`parent_id`,`dept_name`,`dept_code`,`sort`
    </sql>


    <resultMap id="TreeResultMap"
               type="com.ydl.exam.modules.sys.depart.dto.response.SysDepartTreeDTO"
               extends="BaseResultMap">
        <collection property="children" column="id" select="findChildren"></collection>
    </resultMap>


    <select id="findChildren" resultMap="TreeResultMap">
        SELECT * FROM sys_depart WHERE parent_id=#{id}
    </select>

    <select id="paging" resultMap="TreeResultMap">
        SELECT * FROM sys_depart WHERE parent_id='0'
        <if test="query!=null">
            <if test="query.deptName!=null and query.deptName!=''">
                AND dept_name LIKE '%${query.deptName}%'
            </if>
        </if>
    </select>

</mapper>