取餐码获取为null修复

eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbShopTableServiceImpl.java

@@ -979,7 +979,7 @@ public class TbShopTableServiceImpl implements TbShopTableService {
             TbOrderInfo orderInfo = orderInfoMapper.selectById(orderId);
             if (orderInfo != null) {
                 JSONObject jsonObject = new JSONObject();
-                if (orderInfo.getMasterId() != null) {
+                if (StrUtil.isNotBlank(orderInfo.getMasterId())) {
                     jsonObject.put("masterId", orderInfo.getMasterId());
                     return jsonObject;
                 }