diff --git a/src/main/java/com/chaozhanggui/system/cashierservice/controller/NotifyController.java b/src/main/java/com/chaozhanggui/system/cashierservice/controller/NotifyController.java
index 0b629f4..5a39db3 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/controller/NotifyController.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/controller/NotifyController.java
@@ -57,7 +57,7 @@ public class NotifyController {
                     if("TRADE_SUCCESS".equals(object.get("state").toString())){
                         JSONObject extParam = object.getJSONObject("extParam");
                         String orderNo=object.get("mchOrderNo").toString();
-                        if (PayTypeConstant.MINI_PAY.equals(extParam.getStr("payType"))) {
+                        if (ObjectUtil.isNotEmpty(extParam)&&ObjectUtil.isNotNull(extParam)&&PayTypeConstant.MINI_PAY.equals(extParam.getStr("payType"))) {
                             log.info("接收到微信点歌支付成功回调，订单编号：{}", orderNo);
                             return payService.songPaySuccess(orderNo, extParam.getStr("orderNo"));
                         }else {