@Override
 public boolean add(SheetVO vo) {
   // TODO 自动生成的方法存根
   boolean res = super.add(vo);
   for (long id : ((HallTruckSheetVO) vo).getExpressNums()) {
     logisticBL.changeLogisticsState(
         id + "", "快递已离开" + ((HallTruckSheetVO) vo).getStart() + "中转中心" + "-" + vo.getTime());
     logisticBL.changeLogisticsState(
         id + "", "快递已发往" + ((HallTruckSheetVO) vo).getEnd() + "中转中心" + "-" + vo.getTime());
   }
   return res;
 }
 @Override
 public boolean add(SheetVO vo) {
   // TODO 自动生成的方法存根
   boolean res = super.add(vo);
   for (long id : ((CenterReceivingGoodsSheetVO) vo).getExpressNums())
     logisticBL.changeLogisticsState(
         id + "", "快递已到达" + LogIn.currentUser.getCity() + "中转中心" + "-" + vo.getTime());
   return res;
 }