mybatis-plus-join关联查询selectCollection查询有bug，修改成单独查询

service/src/main/java/com/kym/service/admin/impl/SystemNoticeServiceImpl.java

@@ -20,6 +20,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
+import java.util.stream.Collectors;
 
 /**
  * <p>
@@ -63,13 +64,13 @@ public class SystemNoticeServiceImpl extends MyBaseServiceImpl<SystemNoticeMappe
         PageHelper.startPage(params.getPageNum(), params.getPageSize());
         MPJLambdaWrapper<SystemNotice> wrapper = JoinWrappers.lambda(SystemNotice.class)
                 .selectAsClass(SystemNotice.class, NoticeStationVo.class)
-                .selectCollection(StationNotice.class, NoticeStationVo::getStationIdList, map ->map.result(StationNotice::getStationId))
-                .leftJoin(StationNotice.class, StationNotice::getNoticeId, StationNotice::getId)
                 .eq(CommUtil.isNotEmptyAndNull(params.getStatus()), SystemNotice::getStatus, params.getStatus())
                 .like(CommUtil.isNotEmptyAndNull(params.getTitle()), SystemNotice::getTitle, params.getTitle())
                 .like(CommUtil.isNotEmptyAndNull(params.getContent()), SystemNotice::getContent, params.getContent())
                 .orderByDesc(SystemNotice::getUpdateTime);
         List<NoticeStationVo> res = this.selectJoinList(NoticeStationVo.class, wrapper);
+        var notice2stations = stationNoticeService.lambdaQuery().in(StationNotice::getNoticeId, res.stream().map(NoticeStationVo::getId).toList()).list().stream().collect(Collectors.groupingBy(StationNotice::getNoticeId, Collectors.mapping(StationNotice::getStationId, Collectors.toList())));
+        res.forEach(item -> item.setStationIdList(notice2stations.get(item.getId())));
         return new PageBean<>(res);
     }