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我已按照 Symfony 5.2 教程添加 fileUploader 作为服务 (https://symfony.com/doc/current/controller/upload_file.html)。
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，您应该明确配置其值。
被这个控制器调用：
/**
* @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？我尝试通过删除 String 类型，添加字符串类型，从 services.yaml 中的 targetDirectory 参数中删除 $ ......现在几个小时...
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%'
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;
}
看看我的工作 services.yaml。我已经更改了命名空间
应用\服务
到
应用\服务
而且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%'
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