From 013ea42ae4e41a6f65f849352d532972eaba6469 Mon Sep 17 00:00:00 2001
From: hs <112260085@qq.com>
Date: Sat, 28 Dec 2019 18:36:50 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E6=83=A0=E5=8A=B5=E5=A4=A7=E4=BA=8E?=
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---
 .../main/java/io/jpress/web/front/CheckoutController.java  | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/jpress-web/src/main/java/io/jpress/web/front/CheckoutController.java b/jpress-web/src/main/java/io/jpress/web/front/CheckoutController.java
index 93bed74f5..d9439dc2b 100644
--- a/jpress-web/src/main/java/io/jpress/web/front/CheckoutController.java
+++ b/jpress-web/src/main/java/io/jpress/web/front/CheckoutController.java
@@ -266,7 +266,12 @@ public class CheckoutController extends UcenterControllerBase {
 
 
         if (userOrder.getCouponAmount() != null) {
-            orderTotalAmount = orderTotalAmount.subtract(userOrder.getCouponAmount());
+            //优惠劵大于 订单金额会导致 负数
+            if (orderTotalAmount.compareTo(userOrder.getCouponAmount()) <0){
+                orderTotalAmount = new BigDecimal(0);
+            }else {
+                orderTotalAmount = orderTotalAmount.subtract(userOrder.getCouponAmount());
+            }
         }
 
 
-- 
Gitee