test redis host use config

webmain/model/loginModel.php

@@ -297,10 +297,12 @@ class loginClassModel extends Model
 		$cookieSid = $this->rock->cookie('PHPSESSID');
 
         //删除redis
-        $redis = new Redis();
-        $host = getconfig("redis_host");
+		$redis = new Redis();
+		$host = getconfig("redis_host");
         $port = getconfig("redis_port");
+
         $redis->connect($host,$port);
+
         $sid = 'PHPREDIS_SESSION:'.$cookieSid;
         $redis->delete($sid);
         $redis->close();
@@ -416,4 +418,4 @@ class loginClassModel extends Model
         $strs="QWERTYUIOPASDFGHJKLZXCVBNM1234567890qwertyuiopasdfghjklzxcvbnm";
         return substr(str_shuffle($strs),mt_rand(0,strlen($strs)-11),$length);
     }
-}
+}
\ No newline at end of file