Symfony2使用第三方库Upload制作图片上传实例详解

render('ZMAdminBundle:Default:index.html.twig',array('name' => $name)); } /** * 上传图片 * * @param type $user_id 用户的id，用作文件名 * @param type $str 表单中file类型的input的name * @param type $path 保存路径 * @return type */ public function uploadPic($user_id,$str,$path) { $fs = new Filesystem(); //检查路径是否存在 if (!$fs->exists($path)) { //如果不存在，创建目录 $fs->mkdir($path,0700); } //使用Upload库 $storage = new UploadStorageFileSystem($path); $file = new UploadFile($str,$storage); //如果文件名为空 if ($file->getName() != '') { //设置文件名为用户的id $file->setName($user_id); //验证文件上传 $file->addValidations(array( //指定文件类型 new UploadValidationMimetype(array('image/png','image/jpg','image/jpeg','image/gif')),//指定文件大小 new UploadValidationSize('2M') )); //上传文件 try { //成功 $file->upload(); //文件名和扩展名 $file_name = $file->getNameWithExtension(); } catch (Exception $e) { //失败! $errors = $file->getErrors(); } } //返回文件名和扩展名 return $file_name; } }

request; $user_id = $request->get('user_id'); //判断是否有文件上传 if (isset($_FILES['head']) && $_FILES['head'] != '') { $conn = $this->getDoctrine()->getConnection(); $data = $conn->fetchAssoc("SELECT id,head FROM contact WHERE id = ? LIMIT 1",array($user_id)); //判断用户是否存在 if(!empty($data['id'])) { //设置图片保存路径 $path = 'image/head/'; //获取上传文件后返回的文件名和扩展名 $file_name = $this->uploadPic($user_id,'head',$path); //修改用户contact表head头像字段的值 $conn->executeUpdate("UPDATE contact SET head = ? WHERE id = ?",array($path . $file_name,$user_id)); $result['flag'] = 1; $result['content'] = '上传头像成功！'; } else { $result['flag'] = 3; $result['content'] = '用户不存在！'; } }else{ $result['flag'] = 2; $result['content'] = '上传失败，没有选择图片！'; } return new Response(json_encode($result),'200',array('Content-Type' => 'application/json')); } }