优化退款状态判断条件

src/main/java/thyyxxk/wxservice_server/service/SavePayResultService.java

@@ -96,7 +96,7 @@ public class SavePayResultService {
             return ResultVoUtil.success("保存门诊缴费信息成功。");
         }
         Integer status = dao.selectPayStatus(order.getTradeNo());
-        if (null == status || status != TradeState.SUCCESS.getCode()) {
+        if (null != status && status == TradeState.REFUND.getCode()) {
             return ResultVoUtil.success("因系统原因，订单已退款。请稍后重新缴费或前往一楼收费窗口缴费。");
         }
         JSONObject hrgParam = new JSONObject();