Question

我在global.asax中有这个MapPageRoute：

RouteTable.Routes.MapPageRoute("TestPages", "{file}", "~/Test/{file}");

它基本上表示如果请求来自任何文件，它将转到Test文件夹。但是我想限制它，只有在URL中没有asp扩展时才会执行此规则。因此，如果用户键入Test.asp，则不会发生URL路由。但如果像http://www.something.com/Test/这样的路线应该被执行。

我怎样才能做到这一点？

Answer 1

我为此目的使用约束。例如：

routes.MapPageRoute("CMS", "{*friendlyUrl}", "~/index.aspx", true, null, new RouteValueDictionary { { "incomingUrl", new CatchallConstraint() } });

CatchallContraint是必须实现IRouteConstraint的类。

在Match方法中，只检查文件扩展名，如果是asp扩展名则返回false。

这是我的实现（vb.net） - 它比你需要的多，因为它可以在web.config中配置，但你明白了。

Public Class CatchallConstraint 实现System.Web.Routing.IRouteConstraint

''' <summary>
''' If AppSettings: CatchallIgnoredExtensions doesn't exist, these are the default extensions to ignore in the catch-all route
''' </summary>
''' <remarks></remarks>
Public Const DefaultIgnoredExtensions As String = ".jpg,.gif,.png"

''' <summary>
''' For the catch-all route, checks the AppSettings: CatchallIgnoredExtensions to determine if the route should be ignored.
''' Generally this is for images - if we got to here that means the image was not found, and there's no need to follow this route
''' </summary>
Public Function Match(ByVal httpContext As System.Web.HttpContextBase, ByVal route As System.Web.Routing.Route, ByVal parameterName As String, ByVal values As System.Web.Routing.RouteValueDictionary, ByVal routeDirection As System.Web.Routing.RouteDirection) As Boolean Implements System.Web.Routing.IRouteConstraint.Match
    If routeDirection = Routing.RouteDirection.IncomingRequest Then
        Dim friendlyUrl As String = Nothing
        If values.TryGetValue("friendlyUrl", friendlyUrl) AndAlso Not String.IsNullOrEmpty(friendlyUrl) Then
            If friendlyUrl.Contains(".") Then
                Dim catchallIgnoredExtensions As String = ConfigurationManager.AppSettings("CatchallIgnoredExtensions")
                ' only set defaults if the setting is not found - user may not want to ignore any extensions
                If catchallIgnoredExtensions Is Nothing Then
                    catchallIgnoredExtensions = DefaultIgnoredExtensions
                End If
                ' replace spaces and period to standardize, surround the extensions in commas for searching
                catchallIgnoredExtensions = "," & catchallIgnoredExtensions.Replace(" ", "").Replace(".", "").ToLowerInvariant() & ","
                Dim extension As String = System.IO.Path.GetExtension(friendlyUrl).Replace(".", "")
                If catchallIgnoredExtensions.Contains("," & extension & ",") Then
                    Return False
                End If
            End If
        End If
    End If
    Return True
End Function

结束班

Answer 2

要忽略路线，请尝试使用以下内容：

RouteTable.Routes.Ignore("{resource}.asp/{*pathInfo}");

将'.asp'更改为您要过滤的类型。

忽略.asp页面Asp.Net 4.0路由的路由

2 个答案: