diff --git a/gan-modules/ruoyi-gan/src/main/java/com/ruoyi/app/service/AlipayService.java b/gan-modules/ruoyi-gan/src/main/java/com/ruoyi/app/service/AlipayService.java
index de466a1..bc8e50a 100644
--- a/gan-modules/ruoyi-gan/src/main/java/com/ruoyi/app/service/AlipayService.java
+++ b/gan-modules/ruoyi-gan/src/main/java/com/ruoyi/app/service/AlipayService.java
@@ -141,11 +141,20 @@ public class AlipayService {
 
             AlipayTradeAppPayRequest request = new AlipayTradeAppPayRequest();
             request.setNotifyUrl(NOTIFY_URL);
-            JSONObject jsonObject = new JSONObject();
+            //SDK已经封装掉了公共参数，这里只需要传入业务参数。以下方法为sdk的model入参方式(model和biz_content同时存在的情况下取biz_content)。
+            AlipayTradeAppPayModel model = new AlipayTradeAppPayModel ();
+            model.setBody("我是测试数据" );
+            model.setSubject ( "App支付测试Java" );
+            model.setOutTradeNo ( KeyUtil.generateUniqueKey() );
+            model.setTimeoutExpress ( "30m" );
+            model.setTotalAmount ( "0.01" );
+            model.setProductCode ( "QUICK_MSECURITY_PAY" );
+            request.setBizModel ( model );
+            /*JSONObject jsonObject = new JSONObject();
             jsonObject.put("out_trade_no" , KeyUtil.generateUniqueKey());
             jsonObject.put("total_amount",0.01);
             jsonObject.put("subject","订单充值");
-            request.setBizContent(jsonObject.toString());
+            request.setBizContent(jsonObject.toString());*/
             // 3. 发起请求并处理响应
             AlipayTradeAppPayResponse response = alipayClient.sdkExecute(request);
             if (response.isSuccess()) {