FOSRestBundle 遇到 Symfony4 问题，204 无内容响应

Question

我已经用 get 动作为 Movie 对象制作了一个 rest 控制器。

我的数据库管理器一部电影 id:3。

当我尝试访问 localhost:8000/api/movie/3 或与此相关的任何其他想法时，它会直接返回到我来自的页面，只有一点没有内容响应的提示。

[Tue May 29 16:06:42 2018] 127.0.0.1:61540 [204]: /api/movie/3

我有以下配置：

services.yaml

services:
    ...
    sensio_framework_extra.view.listener:
        alias: Sensio\Bundle\FrameworkExtraBundle\EventListener\TemplateListener
    ...

routes/rest.yaml

movies:
    type:     rest
    resource: App\Controller\MovieController
    prefix: /api

packages/fos_rest.yaml

fos_rest:
    param_fetcher_listener:  true
    allowed_methods_listener:  true
    routing_loader:
        include_format: false
    view:
        view_response_listener:  'force'
    format_listener:
        rules:
            - { path: '^/api', priorities: ['json'], fallback_format: 'json' }
    zone:
        - { path: ^/api/* }

packages/framework.yaml:

framework:
    ...
    templating: { engines: ['twig'] }

以及以下文件：

Controller/MovieController.php

<?php

namespace App\Controller;

use FOS\RestBundle\Controller\Annotations as Rest;
use FOS\RestBundle\Routing\ClassResourceInterface;
use FOS\RestBundle\Controller\FOSRestController;

/**
* @Rest\RouteResource("Movie", pluralize=false)
*/
class MovieController extends FOSRestController implements ClassResourceInterface {

    /**
     * @Rest\View()
     * @Rest\Get("/movie/{id}")
     */
    public function getAction(string $id) {}

}

Entity/Movie.php

<?php

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity(repositoryClass="App\Repository\MovieRepository")
 */
class Movie {
    /**
     * @ORM\Id()
     * @ORM\GeneratedValue()
     * @ORM\Column(type="integer")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=32)
     */
    private $title;

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

    ...
}

调试路由器给我这个结果：

$ bin/console debug:router | grep movie
  get_movie                     GET        ANY      ANY    /api/movie/{id}

[更新]

由于之前的错误配置我遇到了错误：

1

Warning: ReflectionObject::__construct() expects parameter 1 to be object, null given

2

An instance of Symfony\Bundle\FrameworkBundle\Templating\EngineInterface >must be injected in FOS\RestBundle\View\ViewHandler to render templates.

3

Type error: Argument 2 passed to Twig_Environment::render() must be of the type array

4

There are no registered paths for namespace "FOSRest".

5

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

Answer 1

我必须将 MovieController 编辑为 return 对象或 return 异常。

MovieController.php

<?php

namespace App\Controller;

use App\Repository\MovieRepository;
use Doctrine\ORM\EntityManagerInterface;
use FOS\RestBundle\Controller\Annotations as Rest;
use FOS\RestBundle\Routing\ClassResourceInterface;
use FOS\RestBundle\Controller\FOSRestController;


/**
* @Rest\RouteResource("Movie", pluralize=false)
*/
class MovieController extends FOSRestController implements ClassResourceInterface {

    /**
     * @var EntityManagerInterface
     */
    private $entityManager;

    /**
     * @var MovieRepository
     */
    private $movieRepository;

    public function __construct(
        EntityManagerInterface $entityManager,
        MovieRepository $movieRepository
    ) {
        $this->entityManager       = $entityManager;
        $this->movieRepository     = $movieRepository;
    }

    public function getAction(string $id) {
        $movie = $this->movieRepository->find($id);

        if($movie === null) {
            throw new NotFoundHttpException();
        }

        return $this->view($movie);
    }
}

Answer 2

您应该像这样在视图注释参数中添加 populateDefaultVars :

/** * * @rest\View(populateDefaultVars=false) */

FOSRestBundle 遇到 Symfony4 问题，204 无内容响应

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