diff --git a/README.md b/README.md
index b8cf249..91dfc08 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,9 @@ composer require windhoney/yii2-rest-rbac
     'components' => [
         'authManager' => [
             'class' => 'wind\rest\components\DbManager', //配置文件
+            'defaultRoles' => ['普通员工'] //选填，默认角色（默认角色下->公共权限（登陆，oauth2，首页等公共页面））
+            'groupTable' => 'auth_groups',//选填，分组表(已默认，可根据自己表名修改)
+            'groupChildTable' => 'auth_groups_child',//选填，分组子表(已默认，可根据自己表名修改)
         ],
     ]
 ```
@@ -59,8 +62,8 @@ composer require windhoney/yii2-rest-rbac
         'class' => 'wind\rest\components\AccessControl',
         'allowActions' => [
             'site/*',//允许访问的节点，可自行添加
-            'rbac/menu/user-menu',
-            'oauth2/*',
+            'rbac/menu/user-menu',//可将路由配置到“普通员工”（默认角色）下
+            'oauth2/*',//可将路由配置到“普通员工”（默认角色）下
         ]
     ],
 ```
diff --git a/components/DbManager.php b/components/DbManager.php
index 89d3a99..cc1e828 100644
--- a/components/DbManager.php
+++ b/components/DbManager.php
@@ -55,11 +55,11 @@ class DbManager extends \yii\rbac\DbManager
     /**
      * @var string the name of the table storing groups. Defaults to "auth_groups".
      */
-    public static $groupTable = 'auth_groups';
+    public $groupTable = 'auth_groups';
     /**
      * @var string the name of the table storing groups. Defaults to "auth_groups_child".
      */
-    public static $groupChildTable = 'auth_groups_child';
+    public $groupChildTable = 'auth_groups_child';
     /**
      * @var Connection|array|string the DB connection object or the application component ID of the DB connection.
      * After the DbManager object is created, if you want to change this property, you should only assign it
@@ -224,7 +224,7 @@ public function getGroups($group_name = null)
     {
         $query = (new Query)
             ->select(['group_id', 'group_name'])
-            ->from([self::$groupTable])
+            ->from([$this->groupTable])
             ->andFilterWhere(['group_name' => $group_name])
             ->andWhere(['group_status' => 0]);
         $result = $query->all($this->db);
@@ -243,7 +243,7 @@ public function getGroupChild($user_id)
     {
         $query = (new Query)
             ->select(['group_id'])
-            ->from([self::$groupChildTable])
+            ->from([$this->groupChildTable])
             ->andWhere(['user_id' => $user_id]);
         $result = $query->all($this->db);
         
@@ -260,7 +260,7 @@ public function getGroupChild($user_id)
     public function assignGroup($group_id, $user_id)
     {
         $this->db->createCommand()
-            ->insert(self::$groupChildTable, [
+            ->insert($this->groupChildTable, [
                 'group_id' => $group_id,
                 'user_id' => $user_id
             ])->execute();
@@ -278,7 +278,7 @@ public function assignGroup($group_id, $user_id)
     public function revokeGroup($group_id, $user_id)
     {
         $this->db->createCommand()
-            ->delete(self::$groupChildTable, [
+            ->delete($this->groupChildTable, [
                 'group_id' => $group_id,
                 'user_id' => $user_id
             ])->execute();
diff --git a/models/AuthGroups.php b/models/AuthGroups.php
index ef9fe79..06b273f 100644
--- a/models/AuthGroups.php
+++ b/models/AuthGroups.php
@@ -2,7 +2,6 @@
 
 namespace wind\rest\models;
 
-use wind\rest\components\DbManager;
 use wind\rest\components\Helper;
 use Yii;
 
@@ -31,7 +30,7 @@ public function __construct($id, array $config = [])
      */
     public static function tableName()
     {
-        return DbManager::$groupTable;
+        return Yii::$app->authManager->groupTable;
     }
     
     /**
diff --git a/models/AuthGroupsChild.php b/models/AuthGroupsChild.php
index 02f78fd..7dfe774 100644
--- a/models/AuthGroupsChild.php
+++ b/models/AuthGroupsChild.php
@@ -2,7 +2,7 @@
 
 namespace wind\rest\models;
 
-use wind\rest\components\DbManager;
+use Yii;
 
 /**
  * Class AuthGroups
@@ -19,7 +19,7 @@ class AuthGroupsChild extends \yii\db\ActiveRecord
      */
     public static function tableName()
     {
-        return DbManager::$groupChildTable;
+        return Yii::$app->authManager->groupChildTable;
     }
     
     /**