订单详情返回下单时间

src/main/java/com/chaozhanggui/system/cashierservice/service/OrderService.java

@@ -484,6 +484,7 @@ public class OrderService {
         groupedByPlaceNum.forEach((k, v) -> {
             HashMap<String, Object> item = new HashMap<>();
             item.put("placeNum", k);
+            item.put("placeTime", v.isEmpty() ? null : v.get(0).getUpdateTime());
             item.put("info", v);
             dataList.add(item);
         });