ry_zhky/ruoyi-system/src/main/resources/mapper/system/ElPaperQuMapper.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.system.mapper.ElPaperQuMapper">

    <resultMap id="BaseResultMap" type="com.ruoyi.system.domain.paper.ElPaperQu">
        <id column="id" property="id" />
        <result column="paper_id" property="paperId" />
        <result column="qu_id" property="quId" />
        <result column="qu_type" property="quType" />
        <result column="answered" property="answered" />
        <result column="answer" property="answer" />
        <result column="sort" property="sort" />
        <result column="score" property="score" />
        <result column="actual_score" property="actualScore" />
        <result column="is_right" property="isRight" />
    </resultMap>

    <sql id="Base_Column_List">
        id,paper_id,qu_id,
        qu_type,answered,answer,
        sort,score,actual_score,
        is_right
    </sql>


    <!-- 计算总分 -->
    <select id="sumObjective" resultType="int">
        SELECT IFNULL(SUM(actual_score),0) as total
        FROM el_paper_qu
        WHERE paper_id=#{paperId}
          AND is_right=true
          AND qu_type &lt; 4
    </select>


    <resultMap id="ListResultMap" extends="BaseResultMap" type="com.ruoyi.system.domain.paper.dto.ext.PaperQuDetailDTO">
        <result column="image" property="image" />
        <result column="content" property="content" />
        <collection property="answerList" column="{paperId=paper_id,quId=qu_id}"
                    select="com.ruoyi.system.mapper.ElPaperQuAnswerMapper.listForShow" />
    </resultMap>


    <select id="listForPaperResult" resultMap="ListResultMap">
        SELECT pq.*,eq.content,eq.image
        FROM el_paper_qu pq
                 LEFT JOIN el_qu eq ON pq.qu_id = eq.id
        WHERE pq.paper_id=#{paperId}
        ORDER BY pq.sort ASC
    </select>
</mapper>