当一个网站从 ASP.NET WebForm 转为 ASP.NET MVC 后，那些 URL 怎么办呢？

比如，原来通过 ~/articles/may/zebra-danio-health-tips.html 能访问某一个页面，那现在转为 ASP.NET MVC 了怎么办呢？

直接贴代码了：

1. 新建一个类，继承 RouteBase 类。

namespace DearBruce.LegacyUrlsRoute.MvcUI.Extensions{    using System;    using System.Collections;    using System.Collections.Generic;    using System.Web;    using System.Web.Routing;    using System.Web.Mvc;    public class LegacyUrlsRoute : RouteBase    {        //可以从数据库中读取出原来的地址        private static IList
     
       legacyUrls = new List
      
       ()        {            "~/articles/may/zebra-danio-health-tips.html",            "~/articles/VelociraptorCalendar.pdf",            "~/guides/tim.smith/BuildYourOwnPC_final.asp"        }.ToElementLower();        public override RouteData GetRouteData(HttpContextBase httpContext)        {            string url = httpContext.Request.AppRelativeCurrentExecutionFilePath.ToLower();            if (legacyUrls.Contains(url))            {                RouteData rd = new RouteData(this, new MvcRouteHandler());                rd.Values.Add("controller", "Home");                rd.Values.Add("action", "Old");                rd.Values.Add("url", url);                return rd;            }            else            {                return null; // Not a legacy URL            }        }        public override VirtualPathData GetVirtualPath(RequestContext requestContext, RouteValueDictionary values)        {            return null;        }    }}
      
     

 

2. 新建一个 List 泛型类的扩展方法。

namespace DearBruce.LegacyUrlsRoute.MvcUI.Extensions{    using System;    using System.Collections.Generic;    public static class ListExtensions    {        /// 
        /// 返回每个小写的元素        /// 
        ///         /// 
             public static IList
     
       ToElementLower(this IList
      
        items)        {            if (items == null || items.Count == 0)            {                return items;            }            for (int i = 0; i < items.Count; i++)            {                items[i] = items[i].ToLower();            }            return items;        }    }}
      
     

 

3. 在 Global.asax 配置路由

public static void RegisterRoutes(RouteCollection routes)        {            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");            routes.Add("LegacyUrls", new DearBruce.LegacyUrlsRoute.MvcUI.Extensions.LegacyUrlsRoute());            routes.MapRoute(                "Default", // 路由名称                "{controller}/{action}/{id}", // 带有参数的 URL                new { controller = "Home", action = "Index", id = UrlParameter.Optional } // 参数默认值            );        }

 

运行效果：

 

 

谢谢浏览！