订单号为空，退款成功接口直接返回error

order-application-service/src/main/java/cn/freemud/service/impl/OrderServiceImpl.java

@@ -599,6 +599,10 @@ public class OrderServiceImpl implements Orderservice {
     @Override
     public String refundNotifyCallback(RefundNotifyCallbackRequestVo requestVo) {
         String trackingNo = LogTreadLocal.getTrackingNo();
+        if (StringUtils.isEmpty(requestVo.getTransId())) {
+            //订单号不能为空
+            return refundFaileMessage("transId is can not empty");
+        }
         Integer refundStatus = requestVo.getRefundStatus();
         if (!Objects.equals(refundStatus, ResponseCodeConstant.RESPONSE_SUCCESS)) {
             //只有退款成功更新状态.其他情况不处理