exam-api/target/classes/mapper/exam/ExamRepoMapper.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.exam.mapper.ExamRepoMapper">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.ydl.exam.modules.exam.entity.ExamRepo">
        <id column="id" property="id" />
        <result column="exam_id" property="examId" />
        <result column="repo_id" property="repoId" />
        <result column="radio_count" property="radioCount" />
        <result column="radio_score" property="radioScore" />
        <result column="multi_count" property="multiCount" />
        <result column="multi_score" property="multiScore" />
        <result column="judge_count" property="judgeCount" />
        <result column="judge_score" property="judgeScore" />
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        `id`,`exam_id`,`repo_id`,`radio_count`,`radio_score`,`multi_count`,`multi_score`,`judge_count`,`judge_score`
    </sql>

    <resultMap id="ExtResultMap" type="com.ydl.exam.modules.exam.dto.ext.ExamRepoExtDTO" extends="BaseResultMap">
        <result column="totalRadio" property="totalRadio" />
        <result column="totalMulti" property="totalMulti" />
        <result column="totalJudge" property="totalJudge" />
    </resultMap>

    <select id="listByExam" resultMap="ExtResultMap">
        SELECT ep.*,repo.radio_count AS totalRadio,repo.multi_count AS totalMulti,repo.judge_count AS totalJudge
        FROM el_exam_repo ep
        LEFT JOIN el_repo repo ON ep.repo_id=repo.id
        WHERE ep.exam_id=#{examId}
    </select>

</mapper>