fix 群成员人数限制

cooleshow-user/user-biz/src/main/resources/config/mybatis/StudentMapper.xml

@@ -399,7 +399,7 @@
         from student t
         left join vip_card_record vcr on t.user_id_ = vcr.user_id_ and vcr.efficient_flag_ = 1 and vcr.end_time_>now() and now()>= vcr.start_time_ and vcr.client_type_= 'STUDENT'
         where t.user_id_ in
-        <foreach collection="param.studentIdList" separator="," item="item" open="(" close=")">
+        <foreach collection="studentIdList" separator="," item="item" open="(" close=")">
             #{item}
         </foreach>
     </select>