diff --git a/cloud-pay-server/src/main/java/com/muyu/pay/controller/AliPayController.java b/cloud-pay-server/src/main/java/com/muyu/pay/controller/AliPayController.java
index 9d92380..c6cb4e8 100644
--- a/cloud-pay-server/src/main/java/com/muyu/pay/controller/AliPayController.java
+++ b/cloud-pay-server/src/main/java/com/muyu/pay/controller/AliPayController.java
@@ -19,6 +19,7 @@ import com.alipay.api.request.AlipayTradePagePayRequest;
 import javax.annotation.Resource;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.UUID;
 
 @RestController
 @RequestMapping("alipay")
@@ -36,6 +37,7 @@ public class AliPayController {
     @GetMapping("/pay")
     @ResponseBody
     public Result pay(@Validated AliPay aliPay, HttpServletResponse httpResponse) throws Exception {
+        aliPay.setTraceNo(UUID.randomUUID().toString().replace("-", ""));
         AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
                 aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);
         AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();