From a9bf1fc6ffb80c2de56e1730595b3abde4910484 Mon Sep 17 00:00:00 2001
From: hjl <1657978663@qq.com>
Date: 星期五, 21 六月 2024 17:17:55 +0800
Subject: [PATCH] fix: 学习端bug

---
 ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java b/ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java
index ca60bf3..cda7ef4 100644
--- a/ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java
+++ b/ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java
@@ -68,7 +68,10 @@
             String key = String.format(RedisConstants.GOOD_STOCK, goods.getId());
             List<TOrder> orderList = orderService.lambdaQuery().eq(TOrder::getGoodsId, goodId)
                     .eq(TOrder::getDisabled, 0).list();
-            int sum = orderList.stream().map(TOrder::getCount).mapToInt(Integer::intValue).sum();
+            int sum = 0;
+            if (!orderList.isEmpty()) {
+                sum = orderList.stream().map(TOrder::getCount).mapToInt(Integer::intValue).sum();
+            }
             // 计算商品剩余可兑换数量
             int number = goods.getTotal() - sum;
             if (number <= 0) {
@@ -127,9 +130,6 @@
             }
             // 兑换成功,生成订单信息、生成积分明细(积分明细需要远程调用rouyi-study服务)
             boolean result = exchangeGood(goodExchange, recipient, number, goodId, needIntegral);
-            // 扣除库存
-            result = result && this.lambdaUpdate().set(TGoods::getTotal, good.getTotal() - number)
-                    .eq(TGoods::getId, good.getId()).update();
             if (!result) {
                 semaphore.release(number);
                 return R.exchangeError("商品兑换失败!");

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