fix

cooleshow-mall/mall-portal/src/main/java/com/yonge/cooleshow/portal/service/impl/OmsPortalOrderServiceImpl.java

@@ -205,8 +205,8 @@ public class OmsPortalOrderServiceImpl implements OmsPortalOrderService {
             if(data != null) {
                 couponAmount = data.getDiscountedPrices();
             }
-            if (couponAmount.compareTo(orderParam.getOrderAmount()) > 0) {
-                couponAmount = orderParam.getOrderAmount();
+            if (couponAmount.compareTo(totalAmount) > 0) {
+                couponAmount = totalAmount;
             }
             handleCouponAmount(orderItemList, couponAmount);
         }