如何在serenity中为页面添加过滤器？

using Serenity.Web;

public class MyFilter : HttpRequestFilter
{
    public override void OnExecutingRequest(System.Web.HttpContext context)
    {
        // 在此处添加过滤逻辑
    }
}

using Serenity.Web;

protected void Application_Start()
{
    // 注册过滤器
    FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
}

using Serenity.Web.Mvc;

[Filter(typeof(MyFilter))]
public class MyPage : Page
{
    // 页面内容
}