上载文件的MimeTypes限制Symfony2

我想限制用户上传。我想只上传pdf格式。我为我的领域做这件事：

/**
 * @Assert\File(maxSize="6M", mimeTypes={"pdf"})
 */
private $document;

---

但这不起作用。我做错了什么？

正确的pdf mime类型是

application/pdf

-

看看注释部分，也许你遗漏了什么

//simple example
namespace Your\Bundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;
//test class
class YourClass
{
    /**
     * @Assert\File(
     *     maxSize = "6M",
     *     mimeTypes = {"application/pdf", "application/x-pdf"},
     *     mimeTypesMessage = "Please upload a valid PDF"
     * )
     */
    protected $document;
}

---

建议使用

mimeTypes={“application/pdf”，“application/x-pdf”}

查看官方文档中的文件约束：。

//simple example
namespace Your\Bundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;
//test class
class YourClass
{
    /**
     * @Assert\File(
     *     maxSize = "6M",
     *     mimeTypes = {"application/pdf", "application/x-pdf"},
     *     mimeTypesMessage = "Please upload a valid PDF"
     * )
     */
    protected $document;
}