Symfony 3 YAML路由不起作用

Question

this is the code for my front controller:

<?php

namespace SystemBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class SystemController extends Controller
{
    public function indexAction()
    {
        return $this->render('SystemBundle:Pages:index.html.twig');
    }
    public function pkgsAction(){
        return $this->render('SystemBundle:Pages:pkg.html.twig');
    }
    public function aboutAction(){
        return $this->render('SystemBundle:Pages:about.html.twig');
    }
    public function contactAction(){
        return $this->render('SystemBundle:Pages:contact.html.twig');
    }
}

and the following is my routing.yml file inside my SystemBundle>Resources>config :

system_homepage:
    path:     /
    defaults: { _controller: SystemBundle:System:index }

system_about:
    path: /about
    defaults: { _controller: SystemBundle:System:about}

system_contact:
    path: /contact
    defaults: { _controller: SystemBundle:System:contact}

system_pkg:
    path: /pkgs
    defaults: { _controller: SystemBundle:System:pkgs}

Everything seems okay and I can access the localhost:8000 but not the other pages like localhost:8000/contact, etc.

They give out a 404 error and an exception: error image here

Please help...

Answer 1

In your routing.yml file, set type to annotation . See the Symfony Routing Docs for more information.

// app/config/routing.yml
app:
    resource: "@SystemBundle/Controller/"
    type:     annotation

Then you can add annotation routes, very easily I might add, in your controller.. like so:

<?php
namespace SystemBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class SystemController extends Controller
{

    /**
     * @Route("/")
     */
    public function indexAction()
    {
        return $this->render('SystemBundle:Pages:index.html.twig');
    }

    /**
     * @Route("/pkg")
     */
    public function pkgsAction()
    {
        return $this->render('SystemBundle:Pages:pkg.html.twig');
    }

    /**
     * @Route("/about")
     */
    public function aboutAction()
    {
        return $this->render('SystemBundle:Pages:about.html.twig');
    }

    /**
     * @Route("/contact")
     */
    public function contactAction()
    {
        return $this->render('SystemBundle:Pages:contact.html.twig');
    }

}

Now you can control your routing right at the class/method level. Personally (and I feel many would agree) this offers a great level of control and clarity over your routes as they're included right there with the method in question.

Caveat Some will argue (for some good reason) that annotations are bad practice as they clutter up the method comments, and actually remove clarity within said comments. I disagree with this notion. Symfony annotations are clearly different than most standard methods of method commenting as they're required to have a certain syntax, ie. @route will not compile; @Route must have a capital 'R', for example.

Not to mention, when you're working in a Symfony-based project, you should be aware of the possibility that annotations will be used. This is all part of communication within a development team. if you're being hired, for example, to work on a Symfony-based project, you should really be aware of annotations and they should not confuse you, nor should they confuse the code you're writing.

I'm in favour of route annotations. You'll find they're easy-to-use, and easy to control.