diff --git a/library/think/Request.php b/library/think/Request.php
index d39153fd..9c8ae276 100644
--- a/library/think/Request.php
+++ b/library/think/Request.php
@@ -1523,13 +1523,13 @@ class Request
                     }
                 }
                 // 自动缓存功能
-                $key = '__URL__';
+                $key = md5($this->host()) . '__URL__';
             } elseif (strpos($key, '|')) {
                 list($key, $fun) = explode('|', $key);
             }
             // 特殊规则替换
             if (false !== strpos($key, '__')) {
-                $key = str_replace(['__MODULE__', '__CONTROLLER__', '__ACTION__', '__URL__'], [$this->module, $this->controller, $this->action, md5($this->url())], $key);
+                $key = str_replace(['__MODULE__', '__CONTROLLER__', '__ACTION__', '__URL__', ''], [$this->module, $this->controller, $this->action, md5($this->url())], $key);
             }
 
             if (false !== strpos($key, ':')) {