商品库存

src/main/java/com/huiju/estateagents/service/impl/TaGoodsServiceImpl.java

 			return "积分不足，请先获取积分";
 		}
 		//判断商品是否够兑换
-		if (taGoods.getTotalNum() < 1){
+		if (taGoods.getInventory() < 1){
 			return "此商品无库存";
 		}