我按照 Symfony 5.2 教程将 FileUploader 添加为服务 (https://symfony.com/doc/current/controller/upload_file.html)。
所以这是我的 service.yaml
parameters:
targetDirectory: '%kernel.project_dir%/public/uploads/'
previews_video: '%kernel.project_dir%/public/uploads/previews'
brochures_directory: '%kernel.project_dir%/public/uploads/brochures'
services:
App\Service\FileUploader:
arguments:
$targetDirectory: '%previews_video%'
这是我的FileUploader.php
<?php
namespace App\Service;
use Symfony\Component\HttpFoundation\File\Exception\FileException;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\String\Slugger\SluggerInterface;
class FileUploader
{
private $targetDirectory;
private $slugger;
public function __construct($targetDirectory, SluggerInterface $slugger)
{
$this->targetDirectory = $targetDirectory;
$this->slugger = $slugger;
}
public function upload(UploadedFile $file)
{
$originalFilename = pathinfo($file->getClientOriginalName(), PATHINFO_FILENAME);
$safeFilename = $this->slugger->slug($originalFilename);
$fileName = $safeFilename.'-'.uniqid().'.'.$file->guessExtension();
try {
$file->move($this->getTargetDirectory(), $fileName);
} catch (FileException $e) {
// ... handle exception if something happens during file upload
}
return $fileName;
}
public function getTargetDirectory()
{
return $this->targetDirectory;
}
}
但是我遇到了这个常见错误:
无法解析“App\Controller\VideoController::edit()”的参数 $fileUploader:无法自动装配服务“App\Service\FileUploader”:方法“__construct()”的参数“$targetDirectory”没有类型提示,您应明确配置其值。
由该控制器调用:
/**
* @Route("/{id}/edit", name="video_edit", methods={"GET","POST"})
* @param Request $request
* @param Video $video
* @param FileUploader $fileUploader
* @return Response
*/
public function edit(Request $request, Video $video, FileUploader $fileUploader): Response
{...}
我该如何解决这个问题?我尝试删除 string 类型,添加字符串类型,从 services.yaml 中的 targetDirectory 参数中删除 $...现在已经为此苦苦挣扎了几个小时...
看看我的工作services.yaml。我更改了命名空间
应用\服务
到
应用\服务
我还在文件末尾添加了服务声明。
看起来服务中的行顺序很重要。首先,我在services部分的顶部添加了声明,但是autowiring是在之后声明的,猜测错误就在这里......
# This file is the entry point to configure your own services.
# Files in the packages/ subdirectory configure your dependencies.
# Put parameters here that don't need to change on each machine where the app is deployed
# https://symfony.com/doc/current/best_practices/configuration.html#application-related-configuration
parameters:
previews_directory: '%kernel.project_dir%/public/uploads/previews'
services:
#i've added my service here at first...
app.menu_builder:
class: App\Menu\MenuBuilder
arguments: ["@knp_menu.factory"]
tags:
- { name: knp_menu.menu_builder, method: createMainMenu, alias: main }
# default configuration for services in *this* file
_defaults:
autowire: true # Automatically injects dependencies in your services.
autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
# makes classes in src/ available to be used as services
# this creates a service per class whose id is the fully-qualified class name
App\:
resource: '../src/'
exclude:
- '../src/DependencyInjection/'
- '../src/Entity/'
- '../src/Kernel.php'
- '../src/Tests/'
# controllers are imported separately to make sure services can be injected
# as action arguments even if you don't extend any base controller class
App\Controller\:
resource: '../src/Controller/'
tags: ['controller.service_arguments']
# add more service definitions when explicit configuration is needed
# please note that last definitions always *replace* previous ones
App\Services\FileUploader:
arguments:
$targetDirectory: '%previews_directory%'
在构造函数中为
string
添加类型提示 $targetDirectory
public function __construct(string $targetDirectory, SluggerInterface $slugger)
{
$this->targetDirectory = $targetDirectory;
$this->slugger = $slugger;
}
您应该将自动装配配置添加到您的服务文件中:
parameters:
targetDirectory: '%kernel.project_dir%/public/uploads/'
previews_video: '%kernel.project_dir%/public/uploads/previews'
brochures_directory: '%kernel.project_dir%/public/uploads/brochures'
services:
# To add:
_defaults:
autowire: true
autoconfigure: true
# You service
App\Service\FileUploader:
arguments:
$targetDirectory: '%previews_video%'
我也有同样的问题。 它与该特定服务的缩进有关。我没有收到任何缩进错误,但自动接线也不起作用。 我所做的是添加 4 个空格作为缩进
App\Service\FileUploader:
arguments:
$targetDirectory: '%TEAM_LOGO_DIRECTORY%'
是的,我也遇到了这个问题,我设法通过在 services.yaml 文件中用空格替换缩进来解决它,我在同一根目录中添加了所有这些属性,然后我这样做了,它对我有用:
services:
App\Services\FileUploader: #(added 4 spaces, NOT 1 tab)
arguments: #(added 8 spaces, NOT 2 tabs)
$targetDirectory: '%cats_directory%' #(added 12 spaces, NOT 3 tabs)
如果您(以及其他遇到此问题的人)遇到困难,可以尝试此解决方案。我不保证它100%有效。
我有同样的问题,我终于发布了一个版本,我忘记将 App\Service\FileUploader 类大写,它是 App\Service ileUploader