MVC,动态路由,Unity,确定global.asax中是否存在电流控制器

为什么不创建一个实用工具帮助器类来注册来自数据库的路由,然后在global.asax中应用控制器路由?

因为您的DB路由是先注册的,所以如果它找到一个有效的路由,那么它将首先使用那个路由。或者你可以设置它,反之亦然。作为一个额外的注意事项,我会确保您从数据库发送的路由有一个关联的路由名,以避免冲突。

public class Global : HttpApplication
{
    public static void RegisterRoutes(RouteCollection routes)
    {
        //call utility to register routes from db
        RouteHelper.RegisterRoutesFromDB(routes);

        //now define my standard routes
        routes.MapRoute(
            "Default",
            "{controller}/{action}/{id}",
            new { controller = "Home", action = "Index", id = "" }
        );

        ...

here 是一个解决方案。使用它,您可以为每个路由定义可选路由,如下所示

   var defaultRoute = routes.MapReplaceableRoute(
              name: "Default",
              url: "{controller}/{action}/{id}",
              defaults: new { controller = "Home", action = "Index", id = 
  UrlParameter.Optional    }
          );

        var route = routes.MapRoute(
            name: "Dynamic",
            url: "{name}",
            defaults: new { controller = "Dynamic", action = "Index" });

        defaultRoute.AlternativeRoute = route;