如何在Symfony中正确重定向？

use Symfony\Component\HttpFoundation\RedirectResponse;

public function redirectToExample()
{
    $url = 'https://example.com'; // 目标URL
    $response = new RedirectResponse($url);

    return $response;
}

public function redirectToExample()
{
    $url = 'https://example.com'; // 目标URL
    $statusCode = 301; // 重定向状态码
    $response = new RedirectResponse($url, $statusCode);

    return $response;
}

public function redirectToExample()
{
    $routeName = 'example_route'; // 目标路由名称
    $routeParams = ['id' => 1]; // 路由参数
    $response = $this->redirectToRoute($routeName, $routeParams);

    return $response;
}