Symfony MongoDb 用 FS 存储图片

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Symfony MongoDb 用 FS 存储图片

使用Symfony

DBmanage引用GitHub

controllor(控制器)

public function saveBooksSubmitAction(Request $Request){    try {        if ($Request->files->get("img_id")) {            $UploadedFile = $Request->files->get("img_id");            $this->checkUploadedIsValid($UploadedFile);            $new_book->setImgId($this->getUploadedImgId());            $new_book->create_time = new \MongoDate();            $new_book->save();            $this->addFlash("success", "成功图书入库。");        } else {            throw new \ErrorException("您没有上传图片，请先上传图片！");        }    } catch (\Exception $Exception) {        $this->addFlash('error', $Exception->getMessage());    }    return $this->redirectToRoute('library_list');}private function getUploadedImgId()    {        $FSManager = new FSManager();        return $FSManager->getPhotoGridFS()->storeUpload("img_id");    }private function checkUploadedIsValid($UploadedFile)    {        $file_type = $UploadedFile->getMimeType();//image/png,image/jpeg,image/gif        if ($file_type != "image/jpeg" && $file_type != 'image/png' && $file_type != 'image/gif') {            throw new \ErrorException("只能上传jpg gif png文件");    }    }//通过id显示图片流public function showPictureAction($img_id){        $FSManager = new FSManager();        $collection = $FSManager->getPhotoGridFS();        $logo = $collection->findOne(array('_id' => new \MongoId($img_id))); // 以_id为索引取得文件        header('Content-type: image/jpg'); // 输出图片头        $pic = $logo->getBytes(); // 输出数据流        return new Response($pic);}

FSManager（图片处理类）

<?phpnamespace AppBundle\DBManager;use rayful\DB\Mongo\DBManager;class FSManager extends DBManager{    protected function collectionName()    {        return '';    }    public function getPhotoGridFS()    {        return $this->getSpecifiedGridFS('photo');    }    public function getAttachGridFS()    {        return $this->getSpecifiedGridFS('attach');    }    public function getSpecifiedGridFS($fsName)    {        return self::db()->getGridFS($fsName);    }    }

使用原生的PHP

    public function uploadImg()    {            $conn = new \MongoClient();            $db = $conn->test;            $prefix = 'img';            $collection = $db->getGridFS($prefix);            $file_size=$_FILES['book_img']['size'];            if($file_size>200*1024) {                throw new \ErrorException("文件过大，不能上传大于200kb的文件");            }            $file_type=$_FILES['book_img']['type'];//image/png,image/jpeg,image/gif            if($file_type !="image/jpeg" && $file_type!='image/png' && $file_type!='image/gif'){                throw new \ErrorException("只能上传jpg gif png文件");            }            $book_img_id = $collection->storeUpload('book_img');            $book_img_id = strval($book_img_id );            return $book_img_id;//        $logo = $collection->findOne(array('_id'=>$book_img_id)); // 以_id为索引取得文件//        header('Content-type: image/png'); // 输出图片头//        $pic= $logo ->getBytes(); // 输出数据流//        return $pic;    }

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