java-insagent-pc/src/main/resources/mapper/modules/admin/SysChannelAreaRelationMapper.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.ydtech.modules.admin.dao.SysChannelAreaRelationMapper">

    <resultMap id="BaseResultMap" type="com.ydtech.modules.admin.model.po.SysChannelAreaRelation">
            <id property="id" column="id" jdbcType="BIGINT"/>
            <result property="gradeId" column="grade_id" jdbcType="BIGINT"/>
            <result property="areaId" column="area_id" jdbcType="BIGINT"/>
    </resultMap>

    <sql id="Base_Column_List">
        id,grade_id,area_id
    </sql>
    <select id="queryRelationList"
            parameterType="com.ydtech.modules.admin.model.vo.SysChannelVo"
            resultType="com.ydtech.modules.admin.model.po.SysChannelAreaRelation">
        select
            a.area_id as areaId,
            b.name
        from sys_channel_area_relation as a
        left join sys_dept as b on a.area_id = b.id
        <where>
            <if test="sysChannelVo.gradeId != null ">
                and a.grade_id = #{sysChannelVo.gradeId}
            </if>
            <if test="sysChannelVo.id != null and sysChannelVo.id != '' ">
                and a.area_id = #{sysChannelVo.id}
            </if>
            <if test="sysChannelVo.name != null and sysChannelVo.name != '' ">
                and b.name like CONCAT('%', #{sysChannelVo.name}, '%')
            </if>
        </where>
    </select>
</mapper>