优化当前域名获取

Application/Base/Tool/Request.class.php

@@ -99,7 +99,7 @@ class Request {
 
     public function getHost()
     {
-        $host = $this->getScheme() . '://' . $this->serverInfo['SERVER_NAME'];
+        $host = $this->getScheme() . '://' . $this->serverInfo['HTTP_HOST'];
         if (in_array($this->serverInfo['SERVER_PORT'], [80, 443])) {
             return $host;
         }