数量改为Integer

08.src/Xingxi/xingxi-system/src/main/java/com/xingxi/business/ProdInventory/domain/ProdInventoryBill.java

@@ -39,7 +39,7 @@ public class ProdInventoryBill extends BaseEntity {
 
     // 数量
     @Excel(name = "数量")
-    private Long quantity;
+    private Integer quantity;
 
     // 订单ID
     @Excel(name = "订单ID")