Question

我正在学习Symfony2，我正在向我的控制器注入服务。我收到这个错误：

Catchable Fatal Error: Argument 1 passed to Inter\DemoBundle\Controller\DataController::__construct() must be an instance of Inter\DemoBundle\Factory\ObjectFactory, none given, called in /home/tomazi/Dev/interface.test/app/cache/dev/classes.php on line 2138 and defined

我创建了一个非常基本的结构接口 - ＆gt;工厂 - ＆gt;控制器

我的界面：

<?php
namespace Inter\DemoBundle\Interfaces;

interface ObjectInterface {

    public function create($testObject);

}

我的工厂：

<?php
namespace Inter\DemoBundle\Factory;
use Inter\DemoBundle\Interfaces\ObjectInterface;

class ObjectFactory implements ObjectInterface{

    public function create($testObject)
    {
        $testObject = 'Hello World';
        return $testObject;
    }

}

我的控制器：

<?php
namespace Inter\DemoBundle\Controller;
use Inter\DemoBundle\Factory\ObjectFactory;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;

class DataController
{
    public $object;

    public function __construct(
        ObjectFactory $objectFactory
    ){
        $this->object = $objectFactory;
    }

    /**
     * @Route("/test")
     * @return ObjectFactory
     */
    public function test()
    {
        return $this->object;
    }

}

我的Services.xml：

<?xml version="1.0" ?>

<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

    <services>
        <!--Factory Services-->
        <service id="inter.factory.object_factory"
                 class="Inter\DemoBundle\Factory\ObjectFactory">
        </service>

        <!--Controller Services-->
        <service id="inter.controller" class="Inter\DemoBundle\DataController">
            <argument type="service" id="inter.factory.object_factory" />
        </service>
    </services>

</container>

我是服务新手判断错误我在services.xml中做错了但是我找不到错误有人能看到我做错了吗？

问候

我认为注入现在正在工作但仍然会出现这些新错误：

FileLoaderImportCircularReferenceException in FileLoader.php line 97:
Circular reference detected in 

"/home/tomazi/Dev/interface.test/app/config/routing_dev.yml" 

("/home/tomazi/Dev/interface.test/app/config/routing_dev.yml" > 

"/home/tomazi/Dev/interface.test/app/config/routing.yml" > 

"/home/tomazi/Dev/interface.test/src/Inter/DemoBundle/Controller/" > 

"/home/tomazi/Dev/interface.test/app/config/routing_dev.yml").

Answer 1

您需要修改路由以将其称为服务。例如：

# app/config/routing.yml
hello:
    path:     /hello
    defaults: { _controller: inter.controller:indexAction }

如果您正在使用注释

/**
 * @Route("/test", service="inter.controller")
 */
public function test()
{
    return $this->object;
}

Answer 2

您可以通过Symfony\Bundle\FrameworkBundle\Controller\Controller解决此问题。它是扩展ContainerAware的基本Symfony类，因此它知道容器。

如果你这样做，你可以简单地解决所有你的家庭：

use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class SomeController extends Controller
{
    public function someAction()
    {
        $someService = $this->get('some.service');
        ...
    }
}

Answer 3

两件事：

您需要将有效的ObjectFactory对象传递给构造函数。（你的错误说它没有收到一个）
你需要添加＆＃34; Action＆＃34;到控制器上的方法（*）。确保您的路线设置正确，清除缓存，然后重试。

* http://symfony.com/doc/current/cookbook/controller/service.html#referring-to-the-service

将服务注入Controller

3 个答案: