确认

  • [X] 我使用的版本是最新版, 并且使用插件确认过项目里无依赖版本冲突
  • [X] 我已经在 issue 中搜索过, 确认问题没有被提出过
  • [X] 我已经修改标题, 将标题中的 描述 替换为遇到的问题

当前程序版本

3.5.9

问题描述

4

3 我在利用上述语句测试的时候，是成功的，尽管有 4 行数据，但是 total 为 3， 后续发现有个属性为 null 则他不该显示，所以在 sql 最后加了一个 where attr is not null，但后续发现， total 的值为结果的行数，并非实际对象数了。 如果能解答或提供相关帮助，万分感谢

详细堆栈日志

2024-11-13T23:57:55.994+08:00 DEBUG 11212 --- [amusement-park-server] [           main] e.c.m.m.S.pagination_mpCount             : ==>  Preparing: SELECT COUNT(*) AS total FROM system_user AS u LEFT JOIN system_user_role AS ur ON u.id = ur.user_id LEFT JOIN system_role AS r ON ur.role_id = r.id WHERE ur.role_id IS NOT NULL
2024-11-13T23:57:56.015+08:00 DEBUG 11212 --- [amusement-park-server] [           main] e.c.m.m.S.pagination_mpCount             : ==> Parameters: 
2024-11-13T23:57:56.031+08:00 DEBUG 11212 --- [amusement-park-server] [           main] e.c.m.m.S.pagination_mpCount             : <==      Total: 1
2024-11-13T23:57:56.035+08:00 DEBUG 11212 --- [amusement-park-server] [           main] e.c.m.m.SystemUserMapper.pagination      : ==>  Preparing: select u.id, u.username, u.password, u.nickname, u.phone_number, u.avatar, u.del_flag, u.create_time, u.update_time, ur.id as ur_id, ur.role_id as ur_role_id, ur.user_id as ur_user_id from system_user as u left join system_user_role as ur on u.id = ur.user_id left join system_role as r on ur.role_id = r.id where ur.role_id is not null LIMIT ?
2024-11-13T23:57:56.035+08:00 DEBUG 11212 --- [amusement-park-server] [           main] e.c.m.m.SystemUserMapper.pagination      : ==> Parameters: 10(Long)
2024-11-13T23:57:56.042+08:00 DEBUG 11212 --- [amusement-park-server] [           main] e.c.m.m.SystemUserMapper.pagination      : <==      Total: 2
SystemUserManageInfo(super=SystemUser(id=1, username=zs, password=null, nickname=null, phoneNumber=18650758741, avatar=null, delFlag=false), roles=[SystemUserRole(id=1, userId=1, roleId=1), SystemUserRole(id=2, userId=1, roleId=2)])
2
2024-11-13T23:57:56.069+08:00  INFO 11212 --- [amusement-park-server] [ionShutdownHook] com.alibaba.druid.pool.DruidDataSource   : {dataSource-1} closing ...
2024-11-13T23:57:56.073+08:00  INFO 11212 --- [amusement-park-server] [ionShutdownHook] com.alibaba.druid.pool.DruidDataSource   : {dataSource-1} closed

Comment From: rowstop

resultMap是个什么结构，一对多？出现笛卡尔积的情况 无法精准分页

Comment From: Asukadadadihaokan

谢谢谢谢，是出现了笛卡尔积