UploadFile.md

Upload File

• 图片的ajax上传

     /**
     * ajax upload file
     *
     * @param Request $request
     * @return \Symfony\Component\HttpFoundation\JsonResponse
     */
    public function uploadAction(Request $request)
    {
      
        /**
         * @var $image \Symfony\Component\HttpFoundation\File\UploadedFile
         */
        $image = $request->files->get('upfile'); // 图片的name
        if($image instanceof UploadedFile){
            $name = $image->getClientOriginalName();
            $size = $image->getSize();
            $type = $image->guessClientExtension();
            $result = $this->get('kit.file_uploader')->upload($image, 'image/' . date('Y/m'));
            if($result['code'] == 1){
                return $this->json([
                    "originalName" => $name,
                    "name" => $name,
                    "url" => '/'.$result['data'],
                    "size" => $size,
                    "type" => "." . $type,
                    "state" => "SUCCESS"
                ]);
            }else{
                return $this->json([
                    'state' => 'FAILD'
                ]);
            }
        }else{
            return $this->json([
                "originalName" => '',
                "name" => '',
                "url" => '',
                "size" => '',
                "type" => '',
                "state" => "图片不能为空"
            ]);
        }
    }
  

• 表单图片上传

  • 编写图片上传service

      namespace KitBaseBundle\Service;
    
      use Symfony\Component\HttpFoundation\File\UploadedFile;
      
      class FileUploader
      {
          private $targetDir;
      
          public function __construct($targetDir)
          {
              $this->targetDir = $targetDir;
          }
          
          public function upload(UploadedFile $file, $subDir = '')
          {
              $fileName = md5(uniqid()).'.'.$file->guessExtension();
              $subDir = empty($subDir) ? '' : '/'. $subDir;
              try {
                  $file->move($this->targetDir . $subDir, $fileName);
                  $file->getPath();
              }catch (\Exception $e){
                  return [
                      'code' => 0,
                      'data' => $e->getCode() . $e->getMessage()
                  ];
              }
              
              return [
                  'code' => 1,
                  'data' => 'uploads' .$subDir . '/' .$fileName
              ];
          }
          
      }	
    

  • Entity上配置断言

      /**
       * @var string
       *
       * @ORM\Column(name="thumb", type="string", length=255, nullable=true, options={"comment": "配图"})
       * @Assert\File(
       *              maxSize = "10M",
       *              mimeTypes={ "image/png", "image/jpeg", "image/jpg", "image/gif" }, 
       *              mimeTypesMessage = "图片格式不支持"
       * )
       */
      private $thumb;
    

  • form builder

      >add('thumb', FileType::class, [
          'label' => '标题图片',
          'data_class' => null
      ])
    

  • 上传处理

      $form->handleRequest($request);
      if ($form->isSubmitted()) {
          if($form->isValid()){
              /**
               * @var \KitNewsBundle\Entity\News $news 
               */
              $news = $form->getData();
              if(empty($news->getIntroduction())){
                  $news->setIntroduction(mb_substr(strip_tags($news->getContent()), 0, 120));
              }
              $news->setHits(0);
              $image = $news->getThumb();
              if($image instanceof UploadedFile) {
                  $fileName = $this->get('kit.file_uploader')->upload($image, 'image/' . date('Y/m'));
                  if($fileName['code'] == 1){
                      $news->setThumb($fileName['data']);
                      $em->persist($news);
                      $em->flush();
                      return $this->msgResponse(0, '恭喜', '添加成功', 'kit_news_list');
                  }else{
                      $errors[] = '文件上传失败';
                  }
              }else{
                  $em->persist($news);
                  $em->flush();
                  return $this->msgResponse(0, '恭喜', '添加成功', 'kit_news_list');
              }
              
          }else{
              $errors = $this->serializeFormErrors($form);
          }
      }