Question

我在ASP.net 4.0中使用路由站点，而不是在MVC架构中。这里我遇到了一个很大的问题，即我无法通过路由调用任何处理程序文件。

我在global.asax页面中编写此代码

public static void RegisterRoutes(System.Web.Routing.RouteCollection routes)
    {
        routes.Add(new System.Web.Routing.Route("{language}/{*page}", new CustomRouteHandler()));
    }

    void Application_Start(object sender, EventArgs e)
    {
        RegisterRoutes(System.Web.Routing.RouteTable.Routes);
    }

和CustomRouteHandler类

    public class CustomRouteHandler : IRouteHandler
    {
        public IHttpHandler GetHttpHandler(RequestContext requestContext)
    {
        string language = TemplateControlExtension.GetString(null, requestContext.RouteData.Values["language"]).ToLower();
        string page = TemplateControlExtension.GetString(null, requestContext.RouteData.Values["page"]).ToLower();

        if (string.IsNullOrEmpty(page))
        {
            HttpContext.Current.Response.Redirect("/" + language + "/default.aspx");
        }

        string VirtualPath = "~/" + page;

        if (language != null)
        {
            TemplateControlExtension.Language = language;
        }

        return BuildManager.CreateInstanceFromVirtualPath(VirtualPath, typeof(Page)) as IHttpHandler;
    }
}

当我在这个站点中调用任何处理程序文件时，它会抛出一个错误，即

Type 'Captcha' does not inherit from 'System.Web.UI.Page'.

我的问题是我们如何在此站点中调用处理程序文件？

什么修改需要此路由代码？

Answer 1

使用此代码

using System.Web;
using System.Web.Compilation;
using System.Web.Routing;

public class HttpHandlerRouteHandler<T> : IRouteHandler where T : IHttpHandler, new() {

  public HttpHandlerRouteHandler() { }

  public IHttpHandler GetHttpHandler(RequestContext requestContext) {
    return new T();
  }
}

public class HttpHandlerRouteHandler : IRouteHandler {

  private string _VirtualPath;

  public HttpHandlerRouteHandler(string virtualPath) {
    this._VirtualPath = virtualPath;
  }

  public IHttpHandler GetHttpHandler(RequestContext requestContext) {
    return (IHttpHandler) BuildManager.CreateInstanceFromVirtualPath(this._VirtualPath, typeof(IHttpHandler));
  }

}

如何在asp.net 4.0路由中调用* .ashx处理程序

1 个答案: