FileControllerHelper.md

File Controller Helper

public function downloadAction(Request $request)
{
    $id = $request->query->getInt('id');
    if(empty($id)){
        return $this->msgResponse(2, '出错啦', '请求出错啦', 'kit_doc_homepage');
    }
    $doc = $this->getDoctrine()->getRepository('KitDocBundle:FileManagement')->find($id);
    if(empty($doc)){
        return $this->msgResponse(2, '出错啦', '文档不存在或已被删除', 'kit_doc_homepage');
    }
    $docPath = 'uploads' . $doc->getDocPath();
    if(!file_exists($docPath)){
        return $this->msgResponse(2, '出错啦', '文件不存在或已被删除', 'kit_doc_homepage');
    }
    return $this->file($docPath, $doc->getDocName()); // 如果是pdf之类，直接显示而不是下载，需要设置第三个参数ResponseHeaderBag::DISPOSITION_INLINE
	// 还可以直接接受一个File或者UploadedFile实例
	//$samplePdf = new File('/sample.pdf');
	//return $this->file($samplePdf);
}