Yii如何设置邮箱发文件

'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' => false,
 
            'transport' => [
 
                //这里如果你是qq的邮箱，可以参考qq客户端设置后再进行配置 http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256
 
                'class' => 'Swift_SmtpTransport',
 
                'host' => 'smtp.qq.com',
 
                // qq邮箱
 
                'username' => '114***6@qq.com',
 
                //授权码, 什么是授权码， http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256
 
                'password' => '***',
 
                'port' => '465',
 
                'encryption' => 'ssl',
 
             ],
 
            'messageConfig'=>[
 
                'charset'=>'UTF-8',
 
                'from'=>['114***@qq.com'=>'developer']
 
            ],
 
        ],

public function actionSendmail()
 
    {
 
        $mail = \YII::$app->mailer->compose();
 
        $mail->setTo("***@qq.com");
 
        $mail->setSubject("邮件测试");
 
        $mail->setTextBody("textbody 25 ok?");//发布纯文字文本
 
        //$mail->setHtmlBody("htmlbody");//发布可以带html标签的文本
 
        if($mail->send()){
 
            echo "success";
 
        }else{
 
            echo "failure";
 
        }
 
}