如何通过URL获取RouteData？

Question

我需要在ASP.NET MVC应用程序中通过给定的URL字符串获取RoutData。

我已经找到了基于我的URL字符串模拟HttpContextBase然后将其传递给RouteTable.Routes.GetRouteData()线程中的Route Parsing (Uri to Route)方法的方式。

如何使用HttpContextBase模拟RouteData通过URL字符串检索RouteTable.Routes.GetRouteData()？或者是否有另一种通过URL检索RouteData的方法？

Answer 1

我使用Moq来确定在HttpContextBase中使用GetRouteData()的成员。他们是：

• 请求 AppRelativeCurrentExecutionFilePath PATHINFO

Request.AppRelativeCurrentExecutionFilePath应该返回~的路径，我真正需要的，所以实用类可能就像这样：

public static class RouteUtils
{
    public static RouteData GetRouteDataByUrl(string url)
    {
        return RouteTable.Routes.GetRouteData(new RewritedHttpContextBase(url));
    }

    private class RewritedHttpContextBase : HttpContextBase
    {
        private readonly HttpRequestBase mockHttpRequestBase;

        public RewritedHttpContextBase(string appRelativeUrl)
        {
            this.mockHttpRequestBase = new MockHttpRequestBase(appRelativeUrl);
        }


        public override HttpRequestBase Request
        {
            get
            {
                return mockHttpRequestBase;
            }
        }

        private class MockHttpRequestBase : HttpRequestBase
        {
            private readonly string appRelativeUrl;

            public MockHttpRequestBase(string appRelativeUrl)
            {
                this.appRelativeUrl = appRelativeUrl;
            }

            public override string AppRelativeCurrentExecutionFilePath
            {
                get { return appRelativeUrl; }
            }

            public override string PathInfo
            {
                get { return ""; }
            }
        }
    }
}

然后，您可以像这样使用它（例如在~/Error/NotFound上）：

var rd = RouteUtils.GetRouteDataByUrl("~/Error/NotFound")

哪个应该返回一个如下所示的对象：

RouteData.Values
{
    controller = "Error",
    action = "NotFound"
}

Answer 2

这适用于我（.NET 4.5，MVC 5）：https://average-joe.info/url-to-route-data/

System.Web.Routing.RouteData routeFromUrl =
    System.Web.Routing.RouteTable.Routes.GetRouteData(
            new HttpContextWrapper(
                new HttpContext(
                    new HttpRequest(null, path, query),
                    new HttpResponse(new System.IO.StringWriter()))));