问如何从url引用中获取节点？

EN

use Symfony\Component\HttpFoundation\Request;
use Drupal\Core\Url;
// Getting the referer.
$request = \Drupal::request();
$referer = $request->headers->get('referer');
// Getting the base url.
$base_url = Request::createFromGlobals()->getSchemeAndHttpHost();
// Getting the alias or the relative path.
$alias = substr($referer, strlen($base_url));
// Getting the node.
$params = Url::fromUri("internal:" . $alias)->getRouteParameters();
$entity_type = key($params);
$node = \Drupal::entityTypeManager()->getStorage($entity_type)->load($params[$entity_type]);

//to use dpm you need the devel module
dpm($node->id());
dpm($node->title->value);

$previousUrl = \Drupal::request()->server->get('HTTP_REFERER');
$fake_request = Request::create($previousUrl);
$url_object = \Drupal::service('path.validator')->getUrlIfValid($fake_request->getRequestUri());
$route_name = $url_object->getRouteName();
$url = Url::fromRoute($route_name, $url_object->getRouteParameters());
$previousPath = $url->getInternalPath();