.NET MVC路由 - 包罗万象的路线开始？ [英] .NET MVC routing - catchall at start of route?

问题描述

有什么办法我可以匹配：

Is there any way I can match:

/a/myApp/Feature

/a/b/c/myApp/Feature

/x/y/z/myApp/Feature

$ 2 b $ b

与路由，不知道具体是对myApp /功能之前路径是什么

with a route that doesn't specifically know what the path before myApp/Feature is?

我基本上想要做的是：

RouteTable.Routes.MapRoute(
  "myAppFeatureRoute", "{*path}/myApp/Feature",
  new { controller = "myApp", action = "Feature" });

但你不能把一个包罗万象的在路线的起点。

but you can't put a catchall at the start of a route.

如果我只是尝试{路径} /对myApp /功能，这将匹配/ A /对myApp /功能，而不是/ A / b / C /对myApp /功能。

If I just try "{path}/myApp/Feature", that will match "/a/myApp/Feature" but not "/a/b/c/myApp/Feature".

我试过一个正则表达式包罗万象为好，这并没有什么帮助。

I tried a regex catchall as well, that did nothing to help.

RouteTable.Routes.MapRoute(
  "myAppFeatureRoute", "{path}/myApp/Feature",
  new { controller = "myApp", action = "Feature", path = @".+" });

我这样做的原因是，我建立的是在一个CMS使用的功能，并且可以在网站结构的任何地方坐 - 我只能肯定对路径，而不是开始的结束

The reason I'm doing this is that I am building a feature that is used in a CMS, and can sit anywhere in the site structure - I can only be certain about the end of the path, not the beginning.

推荐答案

您可以使用约束的是，

public class AppFeatureUrlConstraint : IRouteConstraint
{
    public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
    {
        if (values[parameterName] != null)
        {
            var url = values[parameterName].ToString();
            return url.Length == 13 && url.EndsWith("myApp/Feature", StringComparison.InvariantCultureIgnoreCase) ||
                    url.Length > 13 && url.EndsWith("/myApp/Feature", StringComparison.InvariantCultureIgnoreCase);
        }
        return false;
    }
}

用它作为，

using it as,

routes.MapRoute(
    name: "myAppFeatureRoute",
    url: "{*url}",
    defaults: new { controller = "myApp", action = "Feature" },
    constraints: new { url = new AppFeatureUrlConstraint() }
    );

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

那么下面的网址，应该由被拦截功能行动

/a/myApp/Feature

/a/b/c/myApp/Feature

/x/y/z/myApp/Feature

希望这有助于

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