diff --git a/src/main/java/com/chaozhanggui/system/cashierservice/service/CartService.java b/src/main/java/com/chaozhanggui/system/cashierservice/service/CartService.java
index cf6a1e5..c2254ba 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/service/CartService.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/service/CartService.java
@@ -364,7 +364,7 @@ public class CartService {
 
             redisUtil.saveMessage(tableCartKey, jsonArray.toJSONString());
             // 餐位费
-            Object seatCost = jsonArray.stream().findFirst().filter(info -> "-999".equals(((JSONObject) info).getString("productId"))).orElse(null);
+            Object seatCost = jsonArray.stream().findFirst().filter(info -> "-999".equals(((TbCashierCart) info).getProductId())).orElse(null);
 //            TbCashierCart seatCost = cashierCartArrayList.stream().findFirst().filter(info -> "-999".equals(info.getProductId())).orElse(null);
             HashMap<String, Object> data = new HashMap<>();
             data.put("status", "success");