protected void Application_Start()
 {
     log.Info("begin application start");
     ControllerBuilder.Current.SetControllerFactory(typeof(MyControllerFactory)); // 自定义控制器工程
     AreaRegistration.RegisterAllAreas();
     RouteConfig.RegisterRoutes(RouteTable.Routes);
     FilterConfig.RegisterRoutes(GlobalFilters.Filters);
     log.Info("end application start");
 }