在ASP.NET MVC中支持 HttpHandler

写HttpHandler与ASP.NET WebForm基本没有什么不同。只是部署的时候需要注意，只在Web.config中注册还不行，需要在Global.asax.cs添加一条ignore规则：

protected void Application_Start()

{

AreaRegistration.RegisterAllAreas();

WebApiConfig.Register(GlobalConfiguration.Configuration);

FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);

RouteTable.Routes.IgnoreRoute("{filename}.ashx");

RouteConfig.RegisterRoutes(RouteTable.Routes);

}

链接：

http://www.hanselman.com/blog/BackToBasicsDynamicImageGenerationASPNETControllersRoutingIHttpHandlersAndRunAllManagedModulesForAllRequests.aspx