From 8a85fc834d98b2c14c5b886a957ccf3197aad293 Mon Sep 17 00:00:00 2001
From: 刘帅 <rr.iii@qq.com>
Date: 星期日, 20 九月 2026 17:12:28 +0800
Subject: [PATCH] feat:优惠券使用入口:购买门票、预定场地、购买惠民卡

---
 cloud-server-other/src/main/java/com/dsh/other/service/impl/SiteServiceImpl.java |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/cloud-server-other/src/main/java/com/dsh/other/service/impl/SiteServiceImpl.java b/cloud-server-other/src/main/java/com/dsh/other/service/impl/SiteServiceImpl.java
index d650bdc..3515c38 100644
--- a/cloud-server-other/src/main/java/com/dsh/other/service/impl/SiteServiceImpl.java
+++ b/cloud-server-other/src/main/java/com/dsh/other/service/impl/SiteServiceImpl.java
@@ -827,8 +827,8 @@
         if (couponId != null && couponId != 0) {
             if (null != couponId && reservationSite.getPayType() != 3) {
                 UserCoupon userCoupon = userCouponClient.queryUserCouponById(new QueryUserCouponByIdAndUserId(reservationSite.getCouponId(), uid));
-                if (userCoupon != null && userCoupon.getStatus() == 2) {
-                    return ResultUtil.error("优惠券已被核销");
+                if (userCoupon == null || userCoupon.getStatus() == null || userCoupon.getStatus() != 1) {
+                    return ResultUtil.error("优惠券不可用");
                 }
                 Coupon coupon = couponClient.queryCouponById(userCoupon.getCouponId());
                 long time = coupon.getEndTime().getTime();
@@ -843,7 +843,7 @@
                         return ResultUtil.error("该优惠券无法使用");
                     }
 
-                    money = money.subtract(new BigDecimal(num2)).setScale(2, RoundingMode.HALF_EVEN);
+                    money = money.subtract(new BigDecimal(num2)).max(BigDecimal.ZERO).setScale(2, RoundingMode.HALF_EVEN);
                 }
                 if (userCoupon != null && coupon.getType() == 2) {//代金券
                     JSONObject jsonObject = JSON.parseObject(coupon.getContent());
@@ -851,7 +851,7 @@
                     if (money.compareTo(new BigDecimal(num1)) <= 0) {
                         return ResultUtil.error("该优惠券无法使用");
                     }
-                    money = money.subtract(new BigDecimal(num1)).setScale(2, RoundingMode.HALF_EVEN);
+                    money = money.subtract(new BigDecimal(num1)).max(BigDecimal.ZERO).setScale(2, RoundingMode.HALF_EVEN);
                 }
                 userCoupon.setStatus(2);
                 userCouponClient.updateUserCoupon(userCoupon);

--
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