Question

我想从RouteTable中检索路由值，但它是null。有人可以帮忙吗？

public static class GetRouteValues
{
    public static string GetSomeValue()
    {
        RouteCollection routes = RouteTable.Routes;
        var value = routes["somevalue"].ToString();
        return value;
    }
}

我想检索此值以便在global.asax文件中使用，并设置为某些路由值的默认值。

string value = GetRouteValues.GetSomeValue();
routes.MapRoute(null,
                        "{_value}/home",
                        new
                        {
                            _value = value,
                            controller = "home",
                            action = "index"
                        });

Answer 1

好的，如果您正在尝试获取当前路线，可以在控制器内执行此操作....

var completeRoute = this.ControllerContext.RouteData.Route;
//or
var justValue = this.ControllerContext.RouteData.Values["value"]

如果那就是你想要的，请告诉我......

更新：

好的，我认为这应该是你所追求的。您应该能够在静态方法中使用它而不传入任何上下文对象。

var httpContext = new HttpContextWrapper(HttpContext.Current); 
var requestContext = new RequestContext(httpContext, new RouteData());
var completeRoute = requestContext.RouteData.Route;
var justValue = requestContext.RouteData.Values["value"];

希望有所帮助。

Answer 2

Global会很好，但到目前为止我只在Controller中看到它：

Namespace Controllers
  Public Class HomeController
    Inherits BaseController
      Dim routeValues = System.Web.HttpContext.Current.Request.RequestContext.RouteData.Values
      Dim actionName As String
      Dim controllerName As String

      Public Function Index(id As String) As ActionResult
        Try
            Dim x As Integer = 0
            Dim y As Integer = 5
            Dim z As Integer = y / x
        Catch ex As Exception
            If routeValues IsNot Nothing Then
                If routeValues.ContainsKey("action") Then
                    actionName = routeValues("action").ToString()
                End If
                If routeValues.ContainsKey("controller") Then
                    controllerName = routeValues("controller").ToString()
                End If
            End If

            Log.LogError(ex, controllerName, actionName)
        End Try

从RouteTable中检索路由值

2 个答案: