diff --git a/webapp/controller/RechargeController.class.php b/webapp/controller/RechargeController.class.php
index 0ec0db1..45e2d37 100644
--- a/webapp/controller/RechargeController.class.php
+++ b/webapp/controller/RechargeController.class.php
@@ -52,6 +52,11 @@ class RechargeController{
             phpcommon\sendError(ERR_RETRY, '系统繁忙');
             return;
         }
+
+        if ($rsp === '') {
+            phpcommon\sendError(ERR_RETRY, '系统繁忙2');
+            return;
+        }
         
         $response = json_decode($rsp, true);
         echo json_encode(array(
@@ -95,6 +100,11 @@ class RechargeController{
             phpcommon\sendError(ERR_RETRY, '系统繁忙');
             return;
         }
+
+        if ($rsp === '') {
+            phpcommon\sendError(ERR_RETRY, '系统繁忙2');
+            return;
+        }
         
         $response = json_decode($rsp, true);
         $diamonds = $response['diamond'];