/**
   * 处理微信的请求消息
   *
   * @return string
   */
  public function serve()
  {
    $wechat = app('wechat');
    $wechat->server->setMessageHandler(function($message){
      return "欢迎关注 overtrue！";
    });

    return $wechat->server->serve();
  }

#微信配置，若不知道WECHAT_TOKEN和WECHAT_AES_KEY请继续往下看
WECHAT_APPID=
WECHAT_SECRET=
WECHAT_TOKEN=
WECHAT_AES_KEY=
#微信支付用
WECHAT_PAYMENT_MERCHANT_ID=
WECHAT_PAYMENT_KEY=

protected $routeMiddleware = [
  // ...
  'wechat.oauth' => \Overtrue\LaravelWechat\Middleware\OAuthAuthenticate::class,
];

Route::group(['middleware' => ['wechat.oauth']], function () {
  Route::get('/auth','UsersController@wechatAuth');
});

public function wechatAuth(Request $request)
  {
    $userinfo = session('wechat.oauth_user')->original; // 拿到授权用户资料

    //这里写用户注册到mysql的相关逻辑代码，请自行补充

  }