而我们预期的结果应该如下图，实际只请求两次。
用301重定向可以解决该循环请求产生的问题。
OK, let’s begin.
本文已经同步至我的个人博客站点：积累吧|ASP.NET 页面双向静态化
源代码下载：Routing-Static-Page-Demo-V2
Demo（点击这些链接会自动跳转到对应的.html页）：
- http://csdemo.jileiba.com
- http://csdemo.jileiba.com/Default.aspx
- http://csdemo.jileiba.com/Account/Login.aspx
1. 修改CustomRouteHandler类，添加RequestPath属性
using System.Web; using System.Web.Compilation; using System.Web.Routing; using System.Web.UI; namespace Routing_Static_Page_Demo.WebHandler{ public class CustomRouteHandler : IRouteHandler { /// <summary> /// 虚拟路径 /// </summary> public string VirtualPath { get; private set; } /// <summary> /// 请求路径 /// </summary> public string RequestPath { get { return VirtualPath.Substring(1); } } public CustomRouteHandler( string virtualPath) { this.VirtualPath = virtualPath; } /// <summary> /// 返回实际请求页 /// </summary> public IHttpHandler GetHttpHandler( RequestContext requestContext) { foreach ( var urlParm in requestContext.RouteData.Values) { requestContext.HttpContext.Items[urlParm.Key] = urlParm.Value; } var page = BuildManager.CreateInstanceFromVirtualPath(VirtualPath, typeof( Page)) as IHttpHandler; return page; } }}RequestPath属性是从VirtualPath过来的，如果VirtualPath为~/default.aspx，那么对应的RequestPath则是/default.aspx
2. 在WebModule下创建CustomHttpModule.cs类
using System; using System.Globalization; using System.Web; using System.Web.Routing; using Routing_Static_Page_Demo.WebHandler; namespace Routing_Static_Page_Demo.WebModule{ public class CustomHttpModule : IHttpModule { private HttpApplication app; public void Init( HttpApplication context) { app = context; app.AuthorizeRequest += App_AuthorizeRequest; } public void App_AuthorizeRequest( object sender, EventArgs e) { HttpRequest req = app.Request; string path = req.Path; // 如果是.aspx页面 if (path.EndsWith( ".aspx", true, CultureInfo.CurrentCulture)) { // routeUrl则用于存放对应的.html string routeUrl = string.Empty; // 遍历RouteTable，找到.aspx页面对应的.html foreach ( Route route in RouteTable.Routes) { // 获取CustomRouteHandler var handler = ( CustomRouteHandler) route.RouteHandler; // 获取CustomRouteHandler的RequestPath string requestPath = handler.RequestPath; if (requestPath.ToLower() == path.ToLower()) { routeUrl = route.Url; break; } } // 将.aspx页面永久重定向到对应的.html页面 app.Response.StatusCode = 301; app.Response.AddHeader( "Location", "/" + routeUrl); app.Response.End(); } } public void Dispose() { } }}如果你不太熟悉HttpApplication的事件，可以参照：MSDN HttpApplication事件
如果你不太熟悉HttpApplication的用法，可以参照：MSDN HttpApplication类
3. 修改web.config文件，添加HttpModule配置
黄色标记的地方是添加的，其它配置不变。
<? xml version =" 1.0" encoding =" UTF-8" ?>< configuration > < system.web > < compilation debug =" true" targetFramework =" 4.0" /> < httpModules > < add name =" CustomHttpModule" type =" Routing_Static_Page_Demo.WebModule.CustomHttpModule, Routing_Static_Page_Demo" /> </ httpModules > </ system.web > < system.webServer > < modules runAllManagedModulesForAllRequests =" true" > < remove name =" UrlRoutingModule" /> < add name =" UrlRoutingModule" type =" System.Web.Routing.UrlRoutingModule, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> < add name =" CustomHttpModule" type =" Routing_Static_Page_Demo.WebModule.CustomHttpModule" /> </ modules > < handlers > < add name =" UrlRoutingHandler" preCondition =" integratedMode" verb =" *" path =" UrlRouting.axd" type =" System.Web.HttpForbiddenHandler, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> </ handlers > </ system.webServer ></ configuration >在VS自带的WebDev服务器中运行这个项目：在浏览器栏输入http://localhost:xxxx/Default.aspx，会自动跳转到http://localhost:xxxx/Index.html，运行默认路径http://loclhost:xxxx/也会自动跳转到http://localhost:xxxx/Index.html。
4. 在IIS中运行项目
WebDev运行虽然通过了，IIS可不见得通过，毕竟WebDev的权限太高了。
果然，运行之后，出现下面的错误画面：
还是web.config的配置问题。在<webserver>节点下添加下面一行配置：
< validation validateIntegratedModeConfiguration =" false" />这一行配置并不会真正影响web应用程序的安全性，它只是用于关闭有些配置将不会被使用的警告。
That’s end, have fun.nking, keep moving, even if the road obstacles , the one more important thing is that always be a pig for you, that's keep fool.
