easywechat4.x升级到6.x

backend/application/api/controller/Order.php

@@ -243,25 +243,26 @@ class Order extends Api
     }
 
     /**
-     * 支付回调
+     * 支付回调(微信支付 v3: 返回 JSON,失败时微信将按频率重试)
      * @return void
      * @throws \Exception
      */
     public function payNotify()
     {
-        header('Content-Type: text/xml; charset=utf-8');
+        header('Content-Type: application/json; charset=utf-8');
         try {
-            $xml = OrderService::payNotify();
-            echo $xml;
+            // PSR-7 响应(SDK 已完成验签/解密,业务失败返回 500 由微信重试)
+            $response = OrderService::payNotify();
+            http_response_code($response->getStatusCode());
+            foreach ($response->getHeaders() as $name => $values) {
+                header($name . ': ' . implode(', ', $values));
+            }
+            echo $response->getBody()->getContents();
             exit;
         } catch (\Exception $e) {
-            $res = [
-                'return_code' => 'FAIL',
-                'return_msg' => $e->getMessage()
-            ];
-            $xml = ToolService::ToXml($res);
-            Log::info('微信回调信息信息_result_error：' . json_encode(['res' => $res, 'xml' => $xml], JSON_UNESCAPED_UNICODE));
-            echo $xml;
+            Log::info('微信回调信息信息_result_error：' . json_encode(['msg' => $e->getMessage()], JSON_UNESCAPED_UNICODE));
+            http_response_code(500);
+            echo json_encode(['code' => 'FAIL', 'message' => $e->getMessage()], JSON_UNESCAPED_UNICODE);
             exit;
         }
     }