diff --git a/src/plugin/admin/api/Middleware.php b/src/plugin/admin/api/Middleware.php
index 02cc844..20d5540 100644
--- a/src/plugin/admin/api/Middleware.php
+++ b/src/plugin/admin/api/Middleware.php
@@ -1,13 +1,14 @@
 <?php
 namespace plugin\admin\api;
 
+use ReflectionException;
 use Webman\Http\Request;
 use Webman\Http\Response;
 use Webman\MiddlewareInterface;
 use support\exception\BusinessException;
 
 /**
- * 对外提供的webman-admin鉴权中间件
+ * 对外提供的鉴权中间件
  */
 class Middleware implements MiddlewareInterface
 {
@@ -16,7 +17,7 @@ class Middleware implements MiddlewareInterface
      * @param Request $request
      * @param callable $handler
      * @return Response
-     * @throws \ReflectionException
+     * @throws ReflectionException
      * @throws BusinessException
      */
     public function process(Request $request, callable $handler): Response
@@ -30,7 +31,20 @@ class Middleware implements MiddlewareInterface
             if ($request->expectsJson()) {
                 $response = json(['code' => $code, 'msg' => $msg, 'type' => 'error']);
             } else {
-                $response = \response($msg, 401);
+                if ($code === 401) {
+                    $response = response(<<<EOF
+<script>
+    if (self !== top) {
+        parent.location.reload();
+    }
+</script>
+EOF
+                    );
+                } else {
+                    $request->app = '';
+                    $request->plugin = 'admin';
+                    $response = view('common/error/403')->withStatus(403);
+                }
             }
         } else {
             $response = $request->method() == 'OPTIONS' ? response('') : $handler($request);
@@ -38,4 +52,4 @@ class Middleware implements MiddlewareInterface
         return $response;
     }
 
-}
\ No newline at end of file
+}
diff --git a/src/plugin/admin/app/controller/InstallController.php b/src/plugin/admin/app/controller/InstallController.php
index a6fcf8b..d62caa1 100644
--- a/src/plugin/admin/app/controller/InstallController.php
+++ b/src/plugin/admin/app/controller/InstallController.php
@@ -198,15 +198,17 @@ EOF;
         if ($password != $password_confirm) {
             return $this->json(1, '两次密码不一致');
         }
-        if (Admin::first()) {
-            return $this->json(1, '后台已经安装完毕，无法通过此页面创建管理员');
-        }
         if (!is_file($config_file = base_path() . '/plugin/admin/config/database.php')) {
             return $this->json(1, '请先完成第一步数据库配置');
         }
         $config = include $config_file;
         $connection = $config['connections']['mysql'];
         $pdo = $this->getPdo($connection['host'], $connection['username'], $connection['password'], $connection['port'], $connection['database']);
+
+        if ($pdo->query('select * from `wa_admins`')->fetchAll()) {
+            return $this->json(1, '后台已经安装完毕，无法通过此页面创建管理员');
+        }
+
         $smt = $pdo->prepare("insert into `wa_admins` (`username`, `password`, `nickname`, `created_at`, `updated_at`) values (:username, :password, :nickname, :created_at, :updated_at)");
         $time = date('Y-m-d H:i:s');
         $data = [
diff --git a/src/plugin/admin/app/controller/TableController.php b/src/plugin/admin/app/controller/TableController.php
index 66ee09a..bed149b 100644
--- a/src/plugin/admin/app/controller/TableController.php
+++ b/src/plugin/admin/app/controller/TableController.php
@@ -103,6 +103,7 @@ class TableController extends Base
 
         $primary_key_count = 0;
         foreach ($columns as $index => $item) {
+            $columns[$index]['field'] = trim($item['field']);
             if (!$item['field']) {
                 unset($columns[$index]);
                 continue;
@@ -207,6 +208,7 @@ class TableController extends Base
 
         $primary_key_count = $auto_increment_count = 0;
         foreach ($columns as $index => $item) {
+            $columns[$index]['field'] = trim($item['field']);
             if (!$item['field']) {
                 unset($columns[$index]);
                 continue;
diff --git a/src/plugin/admin/app/functions.php b/src/plugin/admin/app/functions.php
index 47b0879..1fed316 100644
--- a/src/plugin/admin/app/functions.php
+++ b/src/plugin/admin/app/functions.php
@@ -3,11 +3,9 @@
  * Here is your custom functions.
  */
 
-use app\model\User;
+use plugin\admin\app\model\User;
 use plugin\admin\app\model\Admin;
 use plugin\admin\app\model\AdminRole;
-use plugin\admin\app\model\Role;
-use plugin\admin\app\model\Rule;
 
 /**
  * 当前管理员id
@@ -138,4 +136,4 @@ function refresh_user_session(bool $force = false)
     unset($user['password']);
     $user['session_last_update_time'] = $time_now;
     $session->set('user', $user);
-}
\ No newline at end of file
+}
diff --git a/src/plugin/admin/app/middleware/AccessControl.php b/src/plugin/admin/app/middleware/AccessControl.php
index 38fa701..081d0ee 100644
--- a/src/plugin/admin/app/middleware/AccessControl.php
+++ b/src/plugin/admin/app/middleware/AccessControl.php
@@ -37,6 +37,7 @@ class AccessControl implements MiddlewareInterface
 EOF
                     );
                 } else {
+                    $request->app = '';
                     $request->plugin = 'admin';
                     $response = view('common/error/403')->withStatus(403);
                 }