diff --git a/.example.env b/.example.env
index 1a50053..95e1469 100644
--- a/.example.env
+++ b/.example.env
@@ -2,7 +2,6 @@ APP_DEBUG = false
 
 [APP]
 DEFAULT_TIMEZONE = Asia/Shanghai
-SYS_KEY = {syskey}
 
 [DATABASE]
 TYPE = mysql
diff --git a/app/controller/Auth.php b/app/controller/Auth.php
index e744ad1..389cb2c 100644
--- a/app/controller/Auth.php
+++ b/app/controller/Auth.php
@@ -47,7 +47,7 @@ class Auth extends BaseController
                 DB::name('user')->where('id', $user['id'])->update(['lasttime' => date("Y-m-d H:i:s")]);
                 $session = md5($user['id'].$user['password']);
                 $expiretime = time()+2562000;
-                $token = authcode("user\t{$user['id']}\t{$session}\t{$expiretime}", 'ENCODE', env('app.sys_key'));
+                $token = authcode("user\t{$user['id']}\t{$session}\t{$expiretime}", 'ENCODE', config_get('sys_key'));
                 cookie('user_token', $token, ['expire' => $expiretime, 'httponly' => true]);
                 if (file_exists($login_limit_file)) {
                     unlink($login_limit_file);
@@ -93,7 +93,7 @@ class Auth extends BaseController
         if($timestamp < time()-300 || $timestamp > time()+300){
             return $this->alert('error', '时间戳无效');
         }
-        if(md5(env('app.sys_key').$domain.$timestamp.$token.env('app.sys_key')) !== $sign){
+        if(md5(config_get('sys_key').$domain.$timestamp.$token.config_get('sys_key')) !== $sign){
             return $this->alert('error', '签名错误');
         }
         if($token != cache('quicklogin_'.$domain)){
@@ -111,7 +111,7 @@ class Auth extends BaseController
 
         $session = md5($row['id'].$row['name']);
         $expiretime = time()+2562000;
-        $token = authcode("domain\t{$row['id']}\t{$session}\t{$expiretime}", 'ENCODE', env('app.sys_key'));
+        $token = authcode("domain\t{$row['id']}\t{$session}\t{$expiretime}", 'ENCODE', config_get('sys_key'));
         cookie('user_token', $token, ['expire' => $expiretime, 'httponly' => true]);
         return redirect('/record/'.$row['id']);
     }
diff --git a/app/controller/Domain.php b/app/controller/Domain.php
index 726ac4e..565c613 100644
--- a/app/controller/Domain.php
+++ b/app/controller/Domain.php
@@ -291,7 +291,7 @@ class Domain extends BaseController
             $token = getSid();
             cache('quicklogin_'.$drow['name'], $token, 3600);
             $timestamp = time();
-            $sign = md5(env('app.sys_key').$drow['name'].$timestamp.$token.env('app.sys_key'));
+            $sign = md5(config_get('sys_key').$drow['name'].$timestamp.$token.config_get('sys_key'));
             $drow['loginurl'] = request()->root(true).'/quicklogin?domain='.$drow['name'].'&timestamp='.$timestamp.'&token='.$token.'&sign='.$sign;
         }
 
diff --git a/app/controller/Install.php b/app/controller/Install.php
index 3f39265..0b0ceb9 100644
--- a/app/controller/Install.php
+++ b/app/controller/Install.php
@@ -29,7 +29,7 @@ class Install extends BaseController
             }
 
             $configdata = file_get_contents(app()->getRootPath().'.example.env');
-            $configdata = str_replace(['{syskey}','{dbhost}','{dbname}','{dbuser}','{dbpwd}','{dbport}','{dbprefix}'], [random(16), $mysql_host, $mysql_name, $mysql_user, $mysql_pwd, $mysql_port, $mysql_prefix], $configdata);
+            $configdata = str_replace(['{dbhost}','{dbname}','{dbuser}','{dbpwd}','{dbport}','{dbprefix}'], [$mysql_host, $mysql_name, $mysql_user, $mysql_pwd, $mysql_port, $mysql_prefix], $configdata);
 
             try{
                 $DB=new PDO("mysql:host=".$mysql_host.";dbname=".$mysql_name.";port=".$mysql_port,$mysql_user,$mysql_pwd);
@@ -53,6 +53,7 @@ class Install extends BaseController
             $sqls=explode(';', $sqls);
 
             $password = password_hash($admin_password, PASSWORD_DEFAULT);
+            $sqls[]="REPLACE INTO `".$mysql_prefix."config` VALUES ('sys_key', '".random(16)."')";
             $sqls[]="INSERT INTO `".$mysql_prefix."user` (`username`,`password`,`level`,`regtime`,`lasttime`,`status`) VALUES ('".addslashes($admin_username)."', '$password', 2, NOW(), NOW(), 1)";
 
             $success=0;$error=0;$errorMsg=null;
diff --git a/app/middleware/AuthUser.php b/app/middleware/AuthUser.php
index d2f2c81..07b78b2 100644
--- a/app/middleware/AuthUser.php
+++ b/app/middleware/AuthUser.php
@@ -13,7 +13,7 @@ class AuthUser
         $cookie = cookie('user_token');
         $user = null;
         if($cookie){
-            $token=authcode($cookie, 'DECODE', env('app.sys_key'));
+            $token=authcode($cookie, 'DECODE', config_get('sys_key'));
             if($token){
                 list($type, $uid, $sid, $expiretime) = explode("\t", $token);
                 if($type == 'user'){
diff --git a/app/middleware/LoadConfig.php b/app/middleware/LoadConfig.php
index 8de6485..f9c0ff8 100644
--- a/app/middleware/LoadConfig.php
+++ b/app/middleware/LoadConfig.php
@@ -31,6 +31,10 @@ class LoadConfig
         
         try{
             $res = Db::name('config')->cache('configs',0)->column('value','key');
+            if(empty($res['sys_key']) && !empty(env('app.sys_key'))){
+                config_set('sys_key', env('app.sys_key'));
+                $res['sys_key'] = env('app.sys_key');
+            }
             Config::set($res, 'sys');
         }catch(Exception $e){
             if(!strpos($e->getMessage(), 'doesn\'t exist')){
diff --git a/app/view/index/error.html b/app/view/index/error.html
deleted file mode 100644
index 4841d4b..0000000
--- a/app/view/index/error.html
+++ /dev/null
@@ -1,23 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-    <meta charset="UTF-8">
-    <meta id="viewport" name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
-    <title>抱歉，出错了</title>
-    <link href="//res.wx.qq.com/open/libs/weui/0.4.3/weui.css" rel="stylesheet">
-    <style>.page{position:absolute;top:0;right:0;bottom:0;left:0;overflow-y:auto;-webkit-overflow-scrolling:touch;box-sizing:border-box}</style>
-</head>
-<body>
-    <div class="weui_msg">
-        <div class="weui_icon_area"><i class="weui_icon_info weui_icon_msg"></i></div>
-        <div class="weui_text_area">
-            <h4 class="weui_msg_title">{$errmsg}</h4>
-        </div>
-    </div>
-<script>
-document.body.addEventListener('touchmove', function (event) {
-	event.preventDefault();
-},{ passive: false });
-</script>
-</body>
-</html>
\ No newline at end of file