添加订单创建提示

fs-service-system/src/main/java/com/fs/live/service/impl/LiveOrderServiceImpl.java

@@ -2211,6 +2211,7 @@ public class LiveOrderServiceImpl implements ILiveOrderService {
         if(live == null) return R.error("当前直播不存在");
         FsStoreProduct fsStoreProduct = fsStoreProductService.selectFsStoreProductById(liveOrder.getProductId());
         LiveGoods goods = liveGoodsMapper.selectLiveGoodsByProductId(liveOrder.getLiveId(), liveOrder.getProductId());
+        if(goods == null) return R.error("当前商品不存在");
 
         // 更改店铺库存
         fsStoreProduct.setStock(fsStoreProduct.getStock()-Integer.parseInt(liveOrder.getTotalNum()));