订单号生成

src/main/java/com/izouma/dingdong/service/OrderInfoService.java

@@ -114,7 +114,9 @@ public class OrderInfoService {
         orderInfo.setEnabled(true);
 //        orderInfo.setGoodsAmount(cart.getRealAmount().subtract(cart.getDeliveryAmount()));
 
-        orderInfo.setOrderNo(user.getId() + new SimpleDateFormat("yyyyMMddHHmmss").format(LocalDateTime.now()));
+        DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
+        String localTime = df.format(LocalDateTime.now());
+        orderInfo.setOrderNo(user.getId() + localTime);
 
         //如果未设置预计到达为15分钟
         if (ObjectUtil.isEmpty(merchantSettings.getPreparationTime())) {