php - 在 Symfony 4 中上传图片

Question

我正在尝试使用本教程在我的 Symfony 项目中上传文件: http://symfony.com/doc/current/controller/upload_file.html

Symfony 没有显示错误，但是当我上传文件时没有任何反应，在我的数据库中没有 filename.jpg 我有这一行 C:\wamp64\tmp\php9294 .tmp

这是我的实体:

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\File\File;

/**
* @ORM\Entity(repositoryClass="App\Repository\ItemRepository")
*/
class Item
{
/**
 * @ORM\Id()
 * @ORM\GeneratedValue()
 * @ORM\Column(type="integer")
 */
private $id;

/**
 * @ORM\Column(type="string")
 * @Assert\NotBlank(message="Upload your image")
 * @Assert\File(mimeTypes={ "image/png", "image/jpeg" })
 */
private $image;

public function getImage()
{
    return $this->image;
}

public function setImage($image)
{
    $this->image = $image;

    return $this;
}

我的表单:

namespace App\Form;

use App\Entity\Item;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\FileType;


class ItemType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('image',FileType::class,array('data_class'=> null, 'label' => 'Image'))
        ;
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => Item::class,
        ));
    }
}

我的 Controller :

namespace App\Controller;

use App\Entity\Item;
use App\Form\ItemType;
use App\Repository\ItemRepository;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

/**
 * @Route("/item")
 */
class ItemController extends Controller
{
    /**
     * @Route("/", name="item_index", methods="GET")
     */

    /**
     * @Route("/new", name="item_new", methods="GET|POST")
     */
    public function new(Request $request): Response
    {
        $item = new Item();
        $form = $this->createForm(ItemType::class, $item);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            $file = $item->getImage();

            $fileName = $this->generateUniqueFileName().'.'.$file->guessExtension();

            // moves the file to the directory where brochures are stored
            $file->move(
                $this->getParameter('brochures_directory'),
                $fileName
            );

            $item->setImage($fileName);



            return $this->redirectToRoute('item_index');
        }

        return $this->render('item/new.html.twig', [
            'item' => $item,
            'form' => $form->createView(),
        ]);
    }

    /**
     * @return string
     */
    private function generateUniqueFileName()
    {
        // md5() reduces the similarity of the file names generated by
        // uniqid(), which is based on timestamps
        return md5(uniqid());
    }
}

我完全按照教程中的步骤操作，但图像似乎没有上传到我的文件夹中

Answer 1

我有同样的问题，我发现这是权限的问题，如果其他人卡在该部分，请将该文件夹授予所有权限，然后重试。

希望对您有所帮助。