管乐迷商城改造

mec-biz/src/main/java/com/ym/mec/biz/service/impl/StudentRepairServiceImpl.java

@@ -423,7 +423,9 @@ public class StudentRepairServiceImpl extends BaseServiceImpl<Integer, StudentRe
 
             List<Goods> goodsList = goodsService.findGoodsByIds(goodsIdsStr);
             Map<Integer, Goods> goodsMap = goodsList.stream().collect(Collectors.toMap(Goods::getId, t -> t));
-            BigDecimal totalGroupPurchasePrice = goodsMap.values().stream().map(Goods::getGroupPurchasePrice).reduce(BigDecimal.ZERO, BigDecimal::add);
+            BigDecimal totalGroupPurchasePrice =
+                    goodsSellDtos.stream().map(t -> goodsMap.get(t.getGoodsId()).getGroupPurchasePrice().
+                            multiply(new BigDecimal(t.getGoodsNum()))).reduce(BigDecimal.ZERO, BigDecimal::add);
 
             Goods goods = null;
             for (String goodsIdStr : goodsIdsStr.split(",")) {