Routes ASP.NET MVC 5国际化-文化始终默认

我跟随了这篇关于ASP.NET MVC 5国际化的伟大文章（由ASP.NET网站引用）：

在实施之后，我只有一个无法解决的问题。 在MVC5中，在URL中使用区域性（不使用cookie），区域性始终是默认的，从不让用户通过浏览器发送首选语言

更详细的信息： 问题在于MapRoute中的区域性定义，它从站点的默认硬编码区域性开始。然后，在BeginExecuteCore中，RouteData.Values[“culture”]始终填充默认区域性，从不从Request.UserLanguages获取区域性。 即使url中不存在区域性，也会填充RouteData.Values[“culture”]，例如，在第一次站点根访问时

如何正确地改变这种行为

也许创建两条路线，一条没有文化

关联代码：

routes.MapRoute(
        name: "Default",
        url: "{culture}/{controller}/{action}/{id}",
        defaults: new {culture = CultureHelper.GetDefaultCulture(), controller = "Home", action = "Index", id = UrlParameter.Optional }
    );

protected override IAsyncResult BeginExecuteCore(AsyncCallback callback, object state)
{
    string cultureName = RouteData.Values["culture"] as string; 

    // Attempt to read the culture cookie from Request
    if (cultureName == null)               
        cultureName = Request.UserLanguages != null && Request.UserLanguages.Length > 0 ? Request.UserLanguages[0] : null; // obtain it from HTTP header AcceptLanguages
     //...
}

---

我发现了解决方案，需要添加另一个mapRoute（mvc默认的站点根访问），并输入区域性路由的默认值，路由顺序很重要，现在一切正常：

public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            //Route order is important! First need to put culture route.

            //support for diferent languages/cultures
            routes.MapRoute(
                name: "CultureEnabled",
                url: "{culture}/{controller}/{action}/{id}",
                defaults: new { /*culture = CultureHelper.GetDefaultCulture(),*/ controller = "Home", action = "Index", id = UrlParameter.Optional }
            );

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );
        }

---

我发现了解决方案，需要添加另一个mapRoute（mvc默认的站点根访问），并输入区域性路由的默认值，路由顺序很重要，现在一切正常：

public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            //Route order is important! First need to put culture route.

            //support for diferent languages/cultures
            routes.MapRoute(
                name: "CultureEnabled",
                url: "{culture}/{controller}/{action}/{id}",
                defaults: new { /*culture = CultureHelper.GetDefaultCulture(),*/ controller = "Home", action = "Index", id = UrlParameter.Optional }
            );

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );
        }