您请求的服务不存在"user_service"

Question

我试图实现编码密码的服务，但它似乎不工作，因为我得到"你已经请求了一个不存在的服务user_service "错误。

下面是我的代码: <标题>供应商/BundleNameBundle/资源/config/services.yml h1> app/config/config.yml h1> 的服务代码

class UserService {
    /**
     * @var EncoderFactoryInterface
     */
    private $encoderFactory;

    public function  __construct(EncoderFactoryInterface $encoderFactory)
    {
           $this->encoderFactory=$encoderFactory;
    }

    public  function  setEncodedPassword(User $user)
   {
         $encoder=$this->encoderFactory->getEncoder($user);
         $password=$encoder->encodePassword($user->getPassword(),$user->getSalt());
         $user->setPassword($password);
   }
}

井下控制器:

 $user=new User();
        $user->setPassword('password');
        $this->get('user_service')->setEncodedPassword($user);

编辑:

我手动删除缓存文件夹，我的服务开始工作。

Answer 1

尝试查看您的src/{VendorName}/{BundleName}Bundle/DependencyInjection/{VendorName}{BundleName}Extension.php

这个文件应该像这样加载你的服务定义:

<?php
namespace Vendor{BundleName}BundleDependencyInjection;
use SymfonyComponentDependencyInjectionContainerBuilder;
use SymfonyComponentConfigFileLocator;
use SymfonyComponentHttpKernelDependencyInjectionExtension;
use SymfonyComponentDependencyInjectionLoader;
/**
 * This is the class that loads and manages your bundle configuration
 *
 * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html}
 */
class Vendor{BundleName}Extension extends Extension
{
    /**
     * {@inheritDoc}
     */
    public function load(array $configs, ContainerBuilder $container)
    {
        $configuration = new Configuration();
        $config = $this->processConfiguration($configuration, $configs);
        //Load our YAML resources
        $loader = new LoaderYamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
        $loader->load('services.yml');
    }
}

这会将服务定义从src/{VendorName}/{BundleName}Bundle/Resources/config/services.yml加载到容器中。如果还是不行，试试php app/console cache:clear。出于速度原因，symfony基本上会将所有服务(和其他配置文件)聚合到一个缓存文件中，这样它就不必每次都读取这些文件。实际缓存服务定义的文件位于:

• app/cache/{envName}/(缓存目录可以配置到任何你想要的位置，这只是默认值)

包含容器服务定义相关信息的文件如下:

• 应用{EnvName} DebugProjectContainer.php
{EnvName} DebugProjectContainer.php
• 应用。元
• 应用{EnvName} DebugProjectContainer.xml