kps-backend/src/main/resources/mapper/QuestionMapper.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.dayou.dao.QuestionMapper">

   <select id="findChildren" parameterType="java.lang.Long" resultType="com.dayou.entity.Question">
       select q.id,q.label,q.parent_id,q.scope,q.min_score,q.max_score,qq.label AS parentLabel from question q left join question qq on q.parent_id = qq.id where q.deleted = 0 and q.parent_id = #{rootId}
   </select>

    <select id="getFailQuestions" parameterType="java.util.List" resultType="com.dayou.entity.Question">
        select q.id,q.label,q.parent_id,q.scope,q.min_score,q.max_score,qq.label AS parentLabel from question q left join question qq on q.parent_id = qq.id where q.deleted = 0
        and q.parent_id in (
            <foreach collection="parentIds" index="index" item="item" separator=",">
                #{item}
            </foreach>
                )
    </select>
</mapper>