tnb/content/content-service/src/main/resources/mapper/exam/ExamUserMapper.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="cn.reghao.tnb.content.app.exam.db.mapper.ExamUserMapper">
    <insert id="save" useGeneratedKeys="true" keyProperty="id">
        insert into exam_user
        (`paper_id`,`user_id`,`role`)
        values
        (#{paperId},#{userId},#{role})
    </insert>
    <insert id="saveAll" useGeneratedKeys="true" keyProperty="id">
        insert ignore into exam_user
        (`paper_id`,`user_id`,`role`)
        values
        <foreach collection="list" item="item" index="index" separator=",">
            (#{item.paperId},#{item.userId},#{item.role})
        </foreach>
    </insert>

    <select id="findByPaperId" resultType="cn.reghao.tnb.content.app.exam.model.po.ExamUser">
        select *
        from exam_user
        where paper_id=#{paperId}
    </select>
    <select id="findByUserId" resultType="cn.reghao.tnb.content.app.exam.model.po.ExamUser">
        select *
        from exam_user
        where user_id=#{userId}
        limit 1
    </select>
    <select id="findExamUser" resultType="cn.reghao.tnb.content.app.exam.model.po.ExamUser">
        select *
        from exam_user
        where paper_id=#{paperId} and user_id=#{userId}
    </select>
</mapper>