update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ClassGroupServiceImpl.java

@@ -2988,13 +2988,17 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
         MapUtil.populateMap(params, queryInfo);
         params.put("groupType",queryInfo.getGroupType().getCode());
 
+        List<ClassGroupTeachersDto> dataList = null;
+        int count = classGroupDao.countClassGroup(params);
+
         if(Objects.nonNull(queryInfo.getLessThenThreeHighOnline())){
             List<Long> lessThenThreeClassGroupIds = classGroupStudentMapperDao.getLessThenThreeClassGroupIds(queryInfo.getOrganIdList());
             params.put("classGroupIds", lessThenThreeClassGroupIds);
+            if(CollectionUtils.isEmpty(lessThenThreeClassGroupIds)){
+                count=0;
+            }
         }
 
-        List<ClassGroupTeachersDto> dataList = null;
-        int count = classGroupDao.countClassGroup(params);
         if (count > 0) {
             pageInfo.setTotal(count);
             params.put("offset", pageInfo.getOffset());