'components' => [
 'db' => [
  'class' => 'yii\db\Connection',
  'dsn' => 'mysql:host=localhost;dbname=yiidemo',
  'username' => 'root',
  'password' => 'root',
  'charset' => 'utf8',
 ],
 'mailer' => [
  'class' => 'yii\swiftmailer\Mailer',
  'viewPath' => '@common/mail',
  // send all mails to a file by default. You have to set
  // 'useFileTransport' to false and configure a transport
  // for the mailer to send real emails.
  'useFileTransport' => true,
  'transport' => [ 
   'class' => 'Swift_SmtpTransport', 
   'host' => 'smtp.qq.com', 
   'username' => '********@qq.com', 
   'password' => '********',
   'port' => '465', 
   'encryption' => 'ssl', 
  ], 
 ],
],

public $modelClass = 'common\models\User';

public function actions()
{
 $actions = parent::actions();

 // 禁用"create" 操作后可用自己在控制器中写的方法
 unset($actions['update'],$actions['create'],$actions['delete']);
 
 //$actions['index']['prepareDataProvider'] = [$this, 'prepareDataProvider'];
 return $actions;
}



public function actionCreate(){

 $request = Yii::$app->request;
 $params = $request->post();
 if($params){
 
 $fromName = $request->getBodyParam('fromName');
 $fromBady = $request->getBodyParam('fromBady');
 $toName = $request->getBodyParam('toName');
 $body = $request->getBodyParam('body');
 return $this->send($fromName,$fromBady,$toName,$body);
 
 }
 
 return false;

}

/*
 * Email Send function
 * @param1 $fromName
 * @param1 $toName
 * @param1 $body
 * $return boo1ean
 * 
 */

public function send($fromName,$fromBady,$toName,$body = ''){
 
 $mail = \Yii::$app->mailer->compose()
  ->setFrom([$fromName=>$fromBady])
  ->setTo($toName)
  ->setSubject('邮件发送配置')
  ->setTextBody($body) //发布纯文字文本
  ->send();
 if($mail){
  return [
   'name' => [
    'fromName' => $fromName,
    'fromBady' => $fromBady,
    'toName' => $toName,
    'body' => $body,
   ],
   'message' => '发生到['.$toName.']的邮件成功！',
   'code' => 0,
   'status' => 200,
  ];
 }else{
  return [
   'name' => 'Error',
   'message' => '发生到'.$toName.'的邮件失败！',
   'code' => 0,
   'status' => 402,
  ];
 }
}