diff --git a/app/controller/PayController.php b/app/controller/PayController.php
index c8f5bb0..b1583d0 100644
--- a/app/controller/PayController.php
+++ b/app/controller/PayController.php
@@ -97,7 +97,12 @@ class PayController
                     $sign = self::getSign($notify, $user_key);
                     $notify['sign'] = $sign;
                     // 跳转通知URL
-                    $res_return_url = $act_order->return_url . '?' . http_build_query($notify);
+                    $res_return_url = '';
+                    if (strpos($act_order->return_url, '?')) {
+                        $res_return_url = $act_order->return_url . '&' . http_build_query($notify);
+                    } else {
+                        $res_return_url = $act_order->return_url . '?' . http_build_query($notify);
+                    }
                     // 响应消息
                     $data['order_id'] = $act_order->order_id;
                     $data['passtime'] = $passtime > 0 ? $passtime : 0;
@@ -187,7 +192,13 @@ class PayController
         $sign = self::getSign($notify, $user_key);
         $notify['sign'] = $sign;
         // 异步通知
-        $res_notify = self::getHttpResponse($order->notify_url . '?' . http_build_query($notify));
+        $notify_url = '';
+        if (strpos($order->notify_url, '?')) {
+            $notify_url = $order->notify_url . '&' . http_build_query($notify);
+        } else {
+            $notify_url = $order->notify_url . '?' . http_build_query($notify);
+        }
+        $res_notify = self::getHttpResponse($notify_url);
         if ($res_notify === 'success') {
             return ['order' => $order->order_id, 'code' => 1, 'msg' => 'notify success'];
         } else {
@@ -314,7 +325,8 @@ class PayController
             'sign_type' => 'MD5',
         ];
         // 添加扩展参数
-        $notify = array_merge($notify, unserialize($param->param));
+        // $notify = array_merge($notify, unserialize($param->param));
+        $notify['param'] = unserialize($param->param);
         return $notify;
     }
     // 请求外部资源
diff --git a/app/model/Order.php b/app/model/Order.php
index 35e7447..1f62400 100644
--- a/app/model/Order.php
+++ b/app/model/Order.php
@@ -42,7 +42,7 @@ class Order extends BaseModel
             // 设备类型
             'device'        => isset($data['device']) ? $data['device'] : '',
             // 业务扩展参数
-            'param'         => serialize(self::getParams($data)),
+            'param'         => serialize(isset($data['param']) ? $data['param'] : ''),
             // 等待/过期：0, 支付成功：1
             'state'         => 0,
             // 开启监听：1, 关闭监听：0
@@ -148,17 +148,17 @@ class Order extends BaseModel
         return $channel;
     }
     // 获取扩展参数数组
-    private static function getParams(array $data): array
-    {
-        $keys = ['pid', 'type', 'out_trade_no', 'notify_url', 'return_url', 'name', 'money', 'sign', 'sign_type'];
-        $params = [];
-        foreach ($data as $key => $value) {
-            if (!in_array($key, $keys)) {
-                $params[$key] = $value;
-            }
-        }
-        return $params;
-    }
+    // private static function getParams(array $data): array
+    // {
+    //     $keys = ['pid', 'type', 'out_trade_no', 'notify_url', 'return_url', 'name', 'money', 'sign', 'sign_type'];
+    //     $params = [];
+    //     foreach ($data as $key => $value) {
+    //         if (!in_array($key, $keys)) {
+    //             $params[$key] = $value;
+    //         }
+    //     }
+    //     return $params;
+    // }
     // 检查金额
     private static function checkMoney($money, $type, $aid, $cid): float
     {