将多个路由分配给一个方法，如何确定调用哪个路由? [英] Multiple routes assigned to one method, how to determine which route was called?

问题描述

此刻，我正在研究一个小型ASP.NET MVC项目.该项目是在几个月前发布的.但是，出于可用性和SEO的原因，现在应该实施更改.我决定使用属性路由来创建干净的URL.

I am working on a small ASP.NET MVC project at the moment. The project was released a few month ago. But changes should be implemented for usability and SEO reasons now. I decided to use attribute routing to create clean URLs.

当前产品页面的调用者:

At the moment a product page is called by:

hostname.tld/Controller/GetArticle/1234

hostname.tld/Controller/GetArticle/1234

我这样定义了一条新路线:

I defined a new Route like this:

[Route("Shop/Article/{id:int}/{title?}", Name = "GetArticle", Order = 0)]
public ActionResult GetArticle(int id, string title = null) {
    // Logic
}

一切正常，但是由于向后兼容和SEO原因，旧路由仍然可用.并使用HTTP状态代码301重定向到新的URL.

Everything works fine, but because of backwards compatibility and SEO reasons, the old route should be still available. And redirected with HTTP status code 301 to the new URL.

我听说可以为一个动作分配多个路由，如下所示:

I've heard that it is possible to assign multiple routes to one action, like this:

[Route("Shop/Article/{id:int}/{title?}", Name = "GetArticle", Order = 0)]
[Route("Controller/GetArticle/{id:int}", Name = "GetArticle_Old", Order = 1)]
public ActionResult GetArticle(int id, string title = null) {
    // Logic
}

但是我不知道这是一个好的解决方案还是如何确定调用哪条路线?

But I have no idea if this is a good solution or how to determine which route was called?

推荐答案

您可以查看ControllerContext.RouteData，以弄清楚在一项操作中使用多条路线时，他们使用了哪条路线.

You can look at ControllerContext.RouteData to figure out which route they used when using multiple routes for one action.

public const string MultiARoute = "multiA/{routesuffix}";
public const string MultiBRoute = "multiB/subB/{routesuffix}";

[Route(MultiARoute)]
[Route(MultiBRoute)]
public ActionResult MultiRoute(string routeSuffix)
{

   var route = this.ControllerContext.RouteData.Route as Route;
   string whatAmI = string.Empty;

   if (route.Url == MultiARoute)
   {
      whatAmI = "A";
   }
   else
   {
      whatAmI = "B";
   }
   return View();
}

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