asp.net web api2设置默认启动登录页面的方法

public class webapiApplication : HttpApplication
{
    protected void Application_Start()
    {
        log4net.Config.XmlConfigurator.Configure(new FileInfo(Server.MapPath("~/WEB.config")));
        AreaReGIStration.RegisterAllAreas();
        GlobalConfiguration.Configure(WebapiConfig.Register);
        FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
        RouteConfig.RegisterRoutes(RouteTable.Routes);
        BundleConfig.RegisterBundles(BundleTable.Bundles);
    }
    
    
    protected void Application_BeginRequest(object sender, EventArgs e)
    {
        if (Context.Request.FilePath == "/") 
            Context.RewritePath("home/page/login.html");
    }
}