asp.net-mvc 如何在 ASP.NET MVC 的控制器中获取路由名称？
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How can I get the route name in controller in ASP.NET MVC?
提问by Mike Scott
ASP.NET MVC routes have names when mapped:
ASP.NET MVC 路由在映射时具有名称：
routes.MapRoute(
"Debug", // Route name -- how can I use this later????
"debug/{controller}/{action}/{id}",
new { controller = "Home", action = "Index", id = string.Empty } );
Is there a way to get the route name, e.g. "Debug" in the above example? I'd like to access it in the controller's OnActionExecuting so that I can set up stuff in the ViewData when debugging, for example, by prefixing a URL with /debug/...
有没有办法获取路线名称，例如上面示例中的“调试”？我想在控制器的 OnActionExecuting 中访问它，以便我可以在调试时在 ViewData 中设置内容，例如，通过在 URL 前加上 /debug/...
回答by Nicolas Cadilhac
The route name is not stored in the route unfortunately. It is just used internally in MVC as a key in a collection. I think this is something you can still use when creating links with HtmlHelper.RouteLink for example (maybe somewhere else too, no idea).
不幸的是，路线名称未存储在路线中。它只是在 MVC 内部用作集合中的键。我认为这是您在使用 HtmlHelper.RouteLink 创建链接时仍然可以使用的东西，例如（也许在其他地方也是如此，不知道）。
Anyway, I needed that too and here is what I did:
无论如何，我也需要它，这就是我所做的：
public static class RouteCollectionExtensions
{
public static Route MapRouteWithName(this RouteCollection routes,
string name, string url, object defaults, object constraints)
{
Route route = routes.MapRoute(name, url, defaults, constraints);
route.DataTokens = new RouteValueDictionary();
route.DataTokens.Add("RouteName", name);
return route;
}
}
So I could register a route like this:
所以我可以注册一个这样的路线：
routes.MapRouteWithName(
"myRouteName",
"{controller}/{action}/{username}",
new { controller = "Home", action = "List" }
);
In my Controller action, I can access the route name with:
在我的 Controller 操作中，我可以使用以下命令访问路由名称：
RouteData.DataTokens["RouteName"]
Hope that helps.
希望有帮助。
回答by Alan Shaw
If using the standard MapRoute setting like below:
如果使用标准 MapRoute 设置，如下所示：
routes.MapRoute( name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
...this will work in the view...
...这将在视图中工作...
var routeName = Url.RequestContext.RouteData.Values["action"].ToString();
回答by Alexander
You could pass route name through route values using default value of additional parameter:
您可以使用附加参数的默认值通过路由值传递路由名称：
routes.MapRoute(
name: "MyRoute",
url: "{controller}/{action}/{id}",
defaults: new { routeName = "MyRoute", controller = "Home", action = "Index", id=UrlParameter.Optional }
);
Then, it is possible to get passed value from controller context:
然后，可以从控制器上下文中获取传递的值：
string routeName = ControllerContext.RouteData.Values["routeName"].ToString();
回答by logicalguy
This does not directlyanswer the question (if you want to be pedantic); however, the real objective seems to be to get a route's base URL, given a route name. So, this is how I did it:
这并不能直接回答问题（如果你想学究）；然而，真正的目标似乎是在给定路由名称的情况下获取路由的基本 URL。所以，我是这样做的：
My route was defined in RouteConfig.csas:
我的路线定义RouteConfig.cs为：
routes.MapRoute(
name: "MyRoute",
url: "Cont/Act/{blabla}",
defaults: new { controller = "Cont", action = "Act"}
);
And to get the route's base URL:
并获取路由的基本 URL：
var myRoute = Url.RouteUrl("MyRoute", new { blabla = "blabla" }).Replace("blabla", "");
It gave me the route's base URL that I wanted:
它给了我我想要的路由的基本 URL：
/Cont/Act/
Hope this helps.
希望这可以帮助。
回答by ajbeaven
An alternative solution could be to use solution configurations:
另一种解决方案可能是使用解决方案配置：
protected override OnActionExecuting()
{
#if DEBUG
// set up stuff in the ViewData
#endif
// continue
}
There shouldn't really ever be a need to reference the route name like this - which I suppose is why MVC makes it so difficult to do this sort of thing.
真的不需要像这样引用路由名称 - 我想这就是为什么 MVC 使这种事情变得如此困难的原因。
回答by Мишка Коробков
another option - use MapRoute with string[] namespaces argument, then you can see your namespaces as RouteData.DataTokens["Namespaces"]
另一个选项 - 将 MapRoute 与 string[] 命名空间参数一起使用，然后您可以将命名空间视为 RouteData.DataTokens["Namespaces"]
