如何上传PDF文件并通过电子邮件发送到typo3？

我有一个包含以下字段的表单 .

• 姓名

• 地址

• 联系

• PDF（文件附件）

此PDF将从系统上传，并通过电子邮件将这些详细信息与上传的PDF一起发送 . 我希望使用独立视图和发送将这些详细信息放在自定义电子邮件模板中 .

我正在使用Typo3 v7.6.23

我是TYPO3的新手，怎么做？

I'm adding my code here

$addJobsInfo = GeneralUtility::makeInstance('MNU\\MnuJobs\\Domain\\Model\\Jobs'); 
$addJobsInfo->setName($arguments['name']);
$addJobsInfo->setAddress($arguments['address']);
$addJobsInfo->setContact($arguments['contact']);             
$this->jobsRepository->add($addJobsInfo);
$persistenceManager = $this->objectManager->get('TYPO3\CMS\Extbase\Persistence\Generic\PersistenceManager');
$persistenceManager->persistAll();
$lastID = $addJobsInfo->getUid();            

$getPDF = $_FILES;                        
if(!empty($getPDF)){
    $pdfName = $getPDF['tx_mnujobs_mnujobs']['name']['jobsDOC'];  
    $pdfTemp = $getPDF['tx_mnujobs_mnujobs']['tmp_name']['jobsDOC'];   
    $resourceFactory = \TYPO3\CMS\Core\Resource\ResourceFactory::getInstance();
    $storage = $resourceFactory->getDefaultStorage();
    $folder = $storage->getFolder('user_upload');
    $pdfFinalName = 'Jobs_'.time().'_'.$pdfName;
    $uploadPDF = $storage->addFile($pdfTemp, $folder, $pdfFinalName);            

    if($lastID){
        $newId = 'NEW'.$lastID;
        $data = array();
        $data['sys_file_reference'][$newId] = array(
            'table_local' => 'sys_file',
            'uid_local' => $uploadPDF->getUid(),
            'tablenames' => 'tx_mnujobs_domain_model_jobs',
            'uid_foreign' => $lastID,
            'fieldname' => 'pdfattachment',
            'pid' => $this->settings['pageUid']
        );
        $dataHandler = GeneralUtility::makeInstance(DataHandler::class);
        $dataHandler->start($data, array());
        $dataHandler->process_datamap();                
    }
}    

//E-mail Sending
$mail = GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Mail\\MailMessage');
$mail->setSubject('Contact Details');
$mail->setTo('sample@gmail.com']);
$mail->setBody('Hi, This is a sample. Please Find the Attachment', 'text/html');
$attachment = Swift_Attachment::fromPath($folder->getIdentifier().$pdfFinalName);
$attachment->setFilename('Document.pdf');
$mail->attach($attachment);
$sendMail = $mail->send();

我得到了这个例外

无法打开文件进行阅读[/user_upload/Jobs_1525757243_sample.pdf]

所以我已经取代了这个

$attachment = Swift_Attachment::newInstance($folder->getIdentifier().$pdfFinalName, 'Document.pdf', 'application/pdf');
$mail->attach($attachment);

两个都不工作，我哪里出错了？