Symfony MongoDb 用 FS 存储图片

Symfony MongoDb 用 FS 存储图片

使用Symfony

1. DBmanage引用GitHub

2. 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);
   }
   

3. FSManager（图片处理类）

   <?php
   namespace 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;
    }