/**
  * Console方法: php index.php wechat accessToken [--renew]
  * 获取微信服务号的access token
  */
 public function accessTokenAction()
 {
     $request = $this->getRequest();
     if (!$request instanceof ConsoleRequest) {
         throw new \RuntimeException('You can only use this action from a console!');
     }
     $renew = $request->getParam('renew');
     //$verbose = $request->getParam('verbose') || $request->getParam('v');
     $token = $this->wechat->getAccessToken($renew);
     return "TOKEN:{$token} \n";
 }