控制器必须返回响应，给定数组

问题描述

我正在尝试遵循 Will Durand 的教程关于如何使用 Symfony2 设置一个好的 REST API.但是我一开始就失败了，因为我收到了这个错误:

I am trying to follow Will Durand's tutorial on how to set up a good REST API with Symfony2. However I am failing in the very beginning as I get this error:

The controller must return a response (Array(welcome => Welcome to my API) given).

我非常基本的配置肯定有一些基本的问题.我为 fos_rest 配置尝试了不同的设置，但是 配置参考并没有提供什么帮助，因为我不太了解单个设置的作用.

Something basic must be wrong with my very basic configuration. I have tried different setting for the fos_rest config, but the configuration reference doesn't provide to be very helpful as I do not really understand what the single settings do.

我的设置:

//config.yml
sensio_framework_extra:
    view:
        annotations: true

fos_rest: ~

//Controller
<?php

namespace Acme\Bundle\ApiBundle\Controller;

use FOS\RestBundle\Controller\Annotations as Rest;

class DefaultController
{
    /**
     * @Rest\View
     */
    public function indexAction()
    {
        return array(
            'welcome' => 'Welcome to my API'
        );
    }
}

我的 API 应该根据接受标头返回 XML 或 JSON.永远不会有 html 输出.

My API should return XML oder JSON based on the accept header. There will never be an html output.

推荐答案

我修好了！配置需要如下所示:

I fixed it!The config needs to look like this:

sensio_framework_extra:
    view:
        annotations: false

fos_rest:
    view:
        view_response_listener: true

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