修复重复修改数据

src/main/java/com/peanut/modules/pay/weChatPay/service/impl/WxpayServiceImpl.java

@@ -145,6 +145,9 @@ public class WxpayServiceImpl extends ServiceImpl<PayWechatOrderDao, PayWechatOr
         payWechatOrderService.updateById(payWechatOrderEntity);
         // 根据订单号，做幂等处理，并且在对业务数据进行状态检查和处理之前，要采用数据锁进行并发控制，以避免函数重入造成的数据混乱
         BuyOrder order = this.buyOrderService.getOne(new QueryWrapper<BuyOrder>().eq("order_sn", orderNo));
+        if ("3".equals(order.getOrderStatus())){
+            return;
+        }
         //使用优惠券
         if (order.getCouponId()!=null&&order.getCouponId()!=0){
             CouponHistory couponHistory = couponHistoryService.getById(order.getCouponId());