ashx繼承方式

public class BaseHandler : IHttpHandler, IRequiresSessionState
{
    public void ProcessRequest(HttpContext context)
    {
        OnLoad(context);
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }
    public virtual void OnLoad(HttpContext context)
    { 
    }
}

================================

public class test : BaseHandler
    {
        public override void OnLoad(HttpContext context)
        {

           //DOSomething
        }
    }