diff --git a/app/Models/User.php b/app/Models/User.php
index 76a3cbe..9f8c043 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -4,6 +4,7 @@ namespace App\Models;
 
 use App\Models\Traits\HasAccount;
 use App\Models\Traits\HasArea;
+use DateTimeInterface;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 use Illuminate\Support\Str;
@@ -65,6 +66,16 @@ class User extends Authenticatable
         });
     }
 
+    /**
+     * 为数组 / JSON 序列化准备日期。
+     * @param  \DateTimeInterface  $date
+     * @return string
+     */
+    protected function serializeDate(DateTimeInterface $date)
+    {
+        return $date->format($this->dateFormat ?: 'Y-m-d H:i:s');
+    }
+
     protected function getNicknameAttribute()
     {
         return $this->info ? $this->info->nickname : '';
diff --git a/composer.json b/composer.json
index 5af14ea..df84ab1 100644
--- a/composer.json
+++ b/composer.json
@@ -39,14 +39,14 @@
     "autoload": {
         "psr-4": {
             "App\\": "app/",
+            "RuLong\\Identity\\": "packages/identity/src/",
             "Database\\Factories\\": "database/factories/",
             "Database\\Seeders\\": "database/seeders/"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "Tests\\": "tests/",
-            "RuLong\\Identity\\": "packages/identity/src/"
+            "Tests\\": "tests/"
         }
     },
     "minimum-stability": "dev",
diff --git a/config/app.php b/config/app.php
index 519f9b1..b6cc6d8 100644
--- a/config/app.php
+++ b/config/app.php
@@ -13,7 +13,7 @@ return [
     |
      */
 
-    'name'            => env('APP_NAME', 'Laravel'),
+    'name' => env('APP_NAME', 'Laravel'),
 
     /*
     |--------------------------------------------------------------------------
@@ -26,7 +26,7 @@ return [
     |
      */
 
-    'env'             => env('APP_ENV', 'production'),
+    'env' => env('APP_ENV', 'production'),
 
     /*
     |--------------------------------------------------------------------------
@@ -39,7 +39,7 @@ return [
     |
      */
 
-    'debug'           => (bool) env('APP_DEBUG', false),
+    'debug' => (bool) env('APP_DEBUG', false),
 
     /*
     |--------------------------------------------------------------------------
@@ -52,9 +52,9 @@ return [
     |
      */
 
-    'url'             => env('APP_URL', 'http://localhost'),
+    'url' => env('APP_URL', 'http://localhost'),
 
-    'asset_url'       => env('ASSET_URL', null),
+    'asset_url' => env('ASSET_URL', null),
 
     /*
     |--------------------------------------------------------------------------
@@ -67,7 +67,7 @@ return [
     |
      */
 
-    'timezone'        => 'PRC',
+    'timezone' => 'PRC',
 
     /*
     |--------------------------------------------------------------------------
@@ -80,7 +80,7 @@ return [
     |
      */
 
-    'locale'          => 'zh-CN',
+    'locale' => 'zh-CN',
     /*
     |--------------------------------------------------------------------------
     | Application Fallback Locale
@@ -105,7 +105,7 @@ return [
     |
      */
 
-    'faker_locale'    => 'en_US',
+    'faker_locale' => 'en_US',
 
     /*
     |--------------------------------------------------------------------------
@@ -118,9 +118,9 @@ return [
     |
      */
 
-    'key'             => env('APP_KEY'),
+    'key' => env('APP_KEY'),
 
-    'cipher'          => 'AES-256-CBC',
+    'cipher' => 'AES-256-CBC',
 
     /*
     |--------------------------------------------------------------------------
@@ -133,7 +133,7 @@ return [
     |
      */
 
-    'providers'       => [
+    'providers' => [
 
         /*
          * Laravel Framework Service Providers...
@@ -189,7 +189,7 @@ return [
     |
      */
 
-    'aliases'         => [
+    'aliases' => [
 
         'App'          => Illuminate\Support\Facades\App::class,
         'Arr'          => Illuminate\Support\Arr::class,
@@ -227,6 +227,7 @@ return [
         'URL'          => Illuminate\Support\Facades\URL::class,
         'Validator'    => Illuminate\Support\Facades\Validator::class,
         'View'         => Illuminate\Support\Facades\View::class,
+        'Wo'           => App\Facades\Wo\Facade::class,
 
     ],