我的问题很简单。我有一个 Uri,我想弄清楚它映射到哪个路由,这样我就可以对路由的各个部分进行一些检查:控制器、操作等。
如何从 Uri 转到 RouteData 或 Route?
根据@tvanfosson 的指导,我想出了一个可以满足我需要的课程。请注意,GetRouteData
实际上看着AppRelativeCurrentExecutionFilePath
和PathInfo
上的属性RequestContextBase
类,而不是Url
财产。
public class RouteInfo
{
public RouteInfo(RouteData data)
{
RouteData = data;
}
public RouteInfo(Uri uri, string applicationPath)
{
RouteData = RouteTable.Routes.GetRouteData(new InternalHttpContext(uri, applicationPath));
}
public RouteData RouteData { get; private set; }
//********************
//Miscellaneous properties here to deal with routing conditionals... (e.g. "CanRedirectFromSignIn")
//********************
private class InternalHttpContext : HttpContextBase
{
private HttpRequestBase _request;
public InternalHttpContext(Uri uri, string applicationPath) : base()
{
_request = new InternalRequestContext(uri, applicationPath);
}
public override HttpRequestBase Request { get { return _request; } }
}
private class InternalRequestContext : HttpRequestBase
{
private string _appRelativePath;
private string _pathInfo;
public InternalRequestContext(Uri uri, string applicationPath) : base()
{
_pathInfo = uri.Query;
if (String.IsNullOrEmpty(applicationPath) || !uri.AbsolutePath.StartsWith(applicationPath, StringComparison.OrdinalIgnoreCase))
{
_appRelativePath = uri.AbsolutePath.Substring(applicationPath.Length);
}
else
{
_appRelativePath = uri.AbsolutePath;
}
}
public override string AppRelativeCurrentExecutionFilePath { get { return String.Concat("~", _appRelativePath); } }
public override string PathInfo { get { return _pathInfo; } }
}
}
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