diff --git a/src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductMapper.java b/src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductMapper.java
index e26f137..b4c5795 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductMapper.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductMapper.java
@@ -38,7 +38,7 @@ public interface TbProductMapper {
 
     void updateStockById(@Param("productId") String productId, @Param("num") Integer num);
 
-    @Update("update tb_product set stock_number=stock_number-#{num} WHERE id=#{id} and stock_number-#{num} > 0")
+    @Update("update tb_product set stock_number=stock_number-#{num} WHERE id=#{id} and stock_number-#{num} >= 0")
     int decrStock(@Param("id") String id, @Param("num") Integer num);
 
     @Update("update tb_product set stock_number=stock_number-#{num} WHERE id=#{id}")
diff --git a/src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductSkuMapper.java b/src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductSkuMapper.java
index 0376a71..61d7b13 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductSkuMapper.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/dao/TbProductSkuMapper.java
@@ -41,7 +41,7 @@ public interface TbProductSkuMapper {
     List<TbProductSku> selectSkus(@Param("list") List<String> productId);
     List<TbProductSku> selectSku(@Param("productId") String productId);
 
-    @Update("update tb_product_sku set stock_number=stock_number-#{num} WHERE id=#{id} and stock_number-#{num} > 0")
+    @Update("update tb_product_sku set stock_number=stock_number-#{num} WHERE id=#{id} and stock_number-#{num} >= 0")
     int decrStock(@Param("id") String id, @Param("num") Integer num);
 
     @Update("update tb_product_sku set stock_number=stock_number-#{num} WHERE id=#{id}")
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 e9635e5..747ac45 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/service/CartService.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/service/CartService.java
@@ -585,8 +585,6 @@ public class CartService {
                     jsonObject1.put("status", "fail");
                     jsonObject1.put("msg", "商品库存不足" + tbProduct1.getName());
                     jsonObject1.put("data", new ArrayList<>());
-                    PushToAppChannelHandlerAdapter.getInstance().AppSendInfo(jsonObject1.toString(), key, jsonObject.getString("userId"), true);
-
                     PushToAppChannelHandlerAdapter.getInstance().AppSendInfo(jsonObject1.toString(), key, jsonObject.getString("userId"), true);
                     return;
                 }