无法将服务"Album\Controller\AlbumController“解析到工厂；是否确实在配置过程中提供了该服务？在Zend Framework 2中

Question

我在Zend Framework2教程项目中收到一个错误，

Unable to resolve service "Album\Controller\AlbumController" to a factory; are you certain you provided it during configuration?

我的Module.php as

namespace Album;

use Zend\ModuleManager\Feature\ConfigProviderInterface;

class Module implements ConfigProviderInterface
{
public function getConfig()
{
    return include __DIR__ . '/../config/module.config.php';
}

public function getServiceConfig()
{
    return [
        'factories' => [
            Model\AlbumTable::class => function($container) {
                $tableGateway = $container->get(Model\AlbumTableGateway::class);
                return new Model\AlbumTable($tableGateway);
            },
            Model\AlbumTableGateway::class => function ($container) {
                $dbAdapter = $container->get(AdapterInterface::class);
                $resultSetPrototype = new ResultSet();
                $resultSetPrototype->setArrayObjectPrototype(new Model\Album());
                return new TableGateway('album', $dbAdapter, null, $resultSetPrototype);
            },
        ],
    ];
}

public function getControllerConfig()
{
    return [
        'factories' => [
            Controller\AlbumController::class => function($container) {
                return new Controller\AlbumController(
                    $container->get(Model\AlbumTable::class)
                );
            },
        ],
    ];
}
}

我的module.config.php是；

namespace Album;

use Zend\Router\Http\Segment;

//use Zend\ServiceManager\Factory\InvokableFactory;

return [
'controllers' => [
    'factories' => [
        Controller\AlbumController::class => InvokableFactory::class,
    ],
],

'router' => [
    'routes' => [
        'album' => [
            'type'    => Segment::class,
            'options' => [
                'route' => '/album[/:action[/:id]]',
                'constraints' => [
                    'action' => '[a-zA-Z][a-zA-Z0-9_-]*',
                    'id'     => '[0-9]+',
                ],
                'defaults' => [
                    'controller' => Controller\AlbumController::class,
                    'action'     => 'index',
                ],
            ],
        ],
    ],
],

'view_manager' => [
    'template_path_stack' => [
        'album' => __DIR__ . '/../view',
    ],
],
];

我是Zend Framework的新手。只是不知道我做错了什么。如果需要更多的代码，请提出来。

Answer 1

您已经为“Controller\AlbumController：：class”定义了两个工厂...

一个在module.config.php中-

return [
    'controllers' => [
        'factories' => [
             Controller\AlbumController::class => InvokableFactory::class,
        ],
     ],
],

第二个在Module.php中-

public function getControllerConfig()
{
    return [
        'factories' => [
            Controller\AlbumController::class => function($container) {
                return new Controller\AlbumController(
                    $container->get(Model\AlbumTable::class)
                );
            },
        ],
    ];
}

它们都是相互冲突的。可调用的工厂用于没有任何依赖关系的类。在本例中，"AlbumController“的依赖项是"AlbumTable"，所以第二个选项看起来就是您想要的那个。

因此，简而言之，从module.config.php中的数组中删除“controllers”键值。

希望这能有所帮助！

Answer 2

我也遇到了同样的问题，还有其他一些相关的问题--直到我终于意识到问题的真正根源:我正在遵循Zend2的教程，而我安装的是Zend3！

如果你有Zend3，一定要使用Zend3的教程，这里是：https://docs.zendframework.com/tutorials/getting-started/overview/