bug修改

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

@@ -618,7 +618,10 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
             dataList.forEach(e -> {
                 param.put("musicGroupId", e.getMusicGroupId());
                 e.setAttendanceNum(teacherPersonalAttendancesCount);
-                e.setHasRestClass(hasRestClassMap.get(Integer.parseInt(e.getClassGroupIds())).intValue());
+                Long aLong = hasRestClassMap.get(Integer.parseInt(e.getClassGroupIds()));
+                if(aLong != null){
+                    e.setHasRestClass(aLong.intValue());
+                }
             });
         }
         if (count == 0) {