update

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

@@ -3865,14 +3865,18 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
         	t.setDeliveryBatchNo(deliveryBatchNo);
         	t.setUpdateTime(date);
         });
-        studentPaymentOrderDetailDao.batchUpdate(studentPaymentOrderDetailList);
+        if(studentPaymentOrderDetailList.size() > 0){
+        	studentPaymentOrderDetailDao.batchUpdate(studentPaymentOrderDetailList);
+        }
         
         List<SubjectChange> subjectChangeList = subjectChangeDao.queryWaitDeliveryList(musicGroupId);
         subjectChangeList.forEach(t -> {
         	t.setDeliveryBatchNo(deliveryBatchNo);
         	t.setUpdateTime(date);
         });
-        subjectChangeDao.batchUpdate(subjectChangeList);
+        if(subjectChangeList.size() > 0){
+        	subjectChangeDao.batchUpdate(subjectChangeList);
+        }
 
         //查询当前乐团报名订单中购买了乐保的订单
         List<StudentApplyInstrumentDto> maintenanceList = studentPaymentOrderDetailDao.queryByType(musicGroupId, OrderDetailTypeEnum.MAINTENANCE);