Symfony:注销后如何显示成功消息 [英] Symfony: how to display a success message after logout

问题描述

在Symfony中，用户成功注销后，如何显示诸如您已成功注销"之类的成功消息?

In Symfony, after a user successfully log out, how to display a success message like "you have successfully logged out" ?

推荐答案

1)创建一个新服务来处理注销成功事件.

1) Create a new service to handle the logout success event.

在services.yml中添加服务:

logout_success_handler:
    class: Path\To\YourBundle\Services\LogoutSuccessHandler
    arguments: ['@security.http_utils']

并添加类，将/path/to/your/login替换为登录页面的网址(在控制器的最后一行):

And add the class, replacing /path/to/your/login with the url of your login page (in the last line of the controller):

<?php

namespace Path\To\YourBundle\Services;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Security\Http\HttpUtils;
use Symfony\Component\Security\Http\Logout\LogoutSuccessHandlerInterface;

class LogoutSuccessHandler implements LogoutSuccessHandlerInterface
{
    protected $httpUtils;
    protected $targetUrl;

    /**
     * @param HttpUtils $httpUtils
     */
    public function __construct(HttpUtils $httpUtils)
    {
        $this->httpUtils = $httpUtils;

        $this->targetUrl = '/path/to/your/login?logout=success';
    }

    /**
     * {@inheritdoc}
     */
    public function onLogoutSuccess(Request $request)
    {
        $response = $this->httpUtils->createRedirectResponse($request, $this->targetUrl);

        return $response;
    }
}

2)配置您的security.yml以使用刚创建的自定义LogoutSuccessHandler:

2) Configure your security.yml to use the custom LogoutSuccessHandler just created:

firewalls:
    # ...
    your_firewall:
        # ...
        logout:
            # ...
            success_handler: logout_success_handler

3)在登录页面的树枝模板中添加:

3) In the twig template of your login page add:

{% if app.request.get('logout') == "success" %}
    <p>You have successfully logged out!</p>
{% endif %}

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