ks/ruoyi-bussiness/src/main/resources/mapper/app/JobCollectionMapper.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.ruoyi.cms.mapper.JobCollectionMapper">
    
    <resultMap type="JobCollection" id="JobCollectionResult">
        <result property="id"    column="id"    />
        <result property="jobId"    column="job_id"    />
        <result property="userId"    column="user_id"    />
        <result property="delFlag"    column="del_flag"    />
        <result property="createBy"    column="create_by"    />
        <result property="createTime"    column="create_time"    />
        <result property="updateBy"    column="update_by"    />
        <result property="updateTime"    column="update_time"    />
        <result property="remark"    column="remark"    />
    </resultMap>

    <sql id="selectJobCollectionVo">
        select id, job_id, user_id, del_flag, create_by, create_time, update_by, update_time, remark from job_collection
    </sql>

    <select id="selectJobCollectionList" parameterType="JobCollection" resultMap="JobCollectionResult">
        <include refid="selectJobCollectionVo"/>
        <where>  del_flag = '0'
            <if test="jobId != null "> and job_id = #{jobId}</if>
            <if test="userId != null "> and user_id = #{userId}</if>
        </where>
    </select>
    <select id="collectionJob" resultType="com.ruoyi.cms.domain.Job">
        select *
        from job
        where del_flag = '0'
          and is_publish = 1
          and job_id in (SELECT DISTINCT (job_id)
                         FROM job_collection
                         where  del_flag = '0' and user_id = #{userId}
                         order by create_time desc)
    </select>
</mapper>