diff --git a/webapp/controller/ShopController.class.php b/webapp/controller/ShopController.class.php
index 7c717980..76c67ccb 100644
--- a/webapp/controller/ShopController.class.php
+++ b/webapp/controller/ShopController.class.php
@@ -347,6 +347,8 @@ class ShopController extends BaseAuthedController
 
         $signature = hash_hmac('sha256', $hash_data, BUY_SERVER_PKEY);
 
+        error_log("buyGoodsDirect-------" . $signature . "---" . $sign . "---" . json_encode($data));
+        
         if ($signature != $sign) {
             $this->_rspErr(1, "signature error, signature: {$signature}, sign: {$sign}");
             return;