saas_file_manager/zhongzheng-system/src/main/resources/mapper/modules/grade/ClassGradeUserMapper.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.zhongzheng.modules.grade.mapper.ClassGradeUserMapper">

    <resultMap type="com.zhongzheng.modules.grade.domain.ClassGradeUser" id="ClassGradeUserResult">
        <result property="id" column="id"/>
        <result property="userId" column="user_id"/>
        <result property="gradeId" column="grade_id"/>
        <result property="status" column="status"/>
        <result property="createTime" column="create_time"/>
        <result property="updateTime" column="update_time"/>
    </resultMap>

    <resultMap type="com.zhongzheng.modules.grade.vo.ClassGradeUserVo" id="ClassGradeUserVoResult">
        <result property="id" column="id"/>
        <result property="userId" column="user_id"/>
        <result property="gradeId" column="grade_id"/>
        <result property="status" column="status"/>
        <result property="code" column="code"/>
        <result property="realName" column="realname"/>
        <result property="idCard" column="id_card"/>
        <result property="createBy" column="create_by"/>
        <result property="telPhone" column="telphone"/>
    </resultMap>

    <select id="select" parameterType="com.zhongzheng.modules.grade.bo.ClassGradeUserQueryBo" resultMap="ClassGradeUserVoResult">
        SELECT
            g.*,
            u.student_code,
            u.realname,
            u.id_card,
            u.telphone
        FROM
            class_grade_user g
                LEFT JOIN `user` u ON g.user_id = u.user_id
        WHERE
            1 = 1
        <if test="status != null and status.size()!=0 ">
            AND b.status in
            <foreach collection="status" item="item" index="index" open="(" close=")" separator=",">
                #{item}
            </foreach>
        </if>
        <if test="gradeId != null and gradeId != ''">
            AND b.grade_id = #{gradeId}
        </if>
    </select>
</mapper>