MVC3路由设置访问后缀 html jsp

 C# Code 

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public static void RegisterRoutes(RouteCollection routes)         {             routes.IgnoreRoute("{resource}.axd/{*pathInfo}");             string extension = ConfigurationManager.AppSettings["ExtensionName"] ?? string.Empty;             extension = string.IsNullOrWhiteSpace(extension) ? string.Empty : "." + extension;             string[] _namespace = new string[] { "MvcBlog_Example.Controllers" };             routes.MapRoute("AllBlogs",                 "",                 new { controller = "Blog", action = "AllBlogs" },                 null,                 _namespace             );                              //实现http://localhost:5680/User1 (不带/home.jsp)             routes.MapRoute("BlogUser",                 "{userName}",                 new { controller = "Blog", action = "home" },                 new { userName = @"w{5,}" },                 _namespace             );             //示范访问地址http://localhost:5680/User1/home.jsp             routes.MapRoute("Blog",                 "{userName}/{action}" + extension,                 new { userName = "dotNetDR_", action = "home", controller = "Blog" },                 new { userName = @"w{5,}" }, //用户名最少5个字母或数字或下划线                 _namespace             );             /* 你会发现当你输入/aa/home.jsp时~MVC会返回404错误页              * 而输入/aa123/home.jsp时~MVC才会正确地跳转到404.jsp友显示页上!              *              * 实现404友好页              */             routes.MapRoute("NotFound",                 "404" + extension,                 new { controller = "Blog", action = "NotFound" },                 null, _namespace             );         }