Magento 2 - 将产品添加到购物车时直接进入结账页面

我正在编写一个扩展，当单击产品页面上的“添加到购物车”按钮时，可以直接进入结账页面。我找到了 Magento 1 的解决方案here http://www.magecorner.com/bypass-cart-and-go-to-checkout/我尝试将其适应 Magento 2。这是我的文件：

文件etc/frontend/events.xml：

<?xml version="1.0" encoding="utf-8" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="checkout_cart_add_product_complete">
        <observer
            name="mycompany_go_to_checkout"
            instance="MyCompany\GoToCheckout\Observer\GoToCheckout" />
    </event>
</config>

文件观察者/GoToCheckout.php：

namespace MyCompany\GoToCheckout\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;

class GoToCheckout implements ObserverInterface
{
    protected $_url;

    public function execute(Observer $observer)
    {
        $urlInterface = \Magento\Framework\App\ObjectManager::getInstance()->get('Magento\Framework\UrlInterface');
        $url = $urlInterface->getUrl('checkout');
        $observer->getControllerAction()->getResponse()->setRedirect($url);
    }
}

我应该更改或添加什么才能使其正常工作？

任何指导将不胜感激。

下面是完整的工作代码。我在我的模块中使用了 if 。

<?xml version="1.0" encoding="utf-8" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="checkout_cart_add_product_complete">
        <observer
            name="mycompany_go_to_checkout"
            instance="MyCompany\GoToCheckout\Observer\GoToCheckout" />
    </event>
</config>

观察者代码是：

namespace MyCompany\GoToCheckout\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;

class GoToCheckout implements ObserverInterface
{
    protected $uri;
    protected $responseFactory;
    protected $_urlinterface;

 public function __construct(
        \Zend\Validator\Uri $uri,
        \Magento\Framework\UrlInterface $urlinterface,
        \Magento\Framework\App\ResponseFactory $responseFactory,
         \Magento\Framework\App\RequestInterface $request
    ) {
        $this->uri = $uri;
        $this->_urlinterface = $urlinterface;
        $this->responseFactory = $responseFactory;
        $this->_request = $request;
    }

    public function execute(Observer $observer)
    {
        $resultRedirect = $this->responseFactory->create();
        $resultRedirect->setRedirect($this->_urlinterface->getUrl('checkout'))->sendResponse('200');
        exit();
    }
}

但此代码仅适用于详细信息页面。在列表页面中它将不起作用，因为它是由 Ajax 管理的。那么解决方案是什么呢？简单，只需创建一个插件结账/控制器/购物车/Add.php并将您的逻辑写入此文件中。