利用Cache，asp.net 简单实现定时执行任务

利用Cache,让asp.net 简单实现定时执行任务

private static CacheItemRemovedCallback OnCacheRemove = null;



protected void Application_Start(object sender, EventArgs e)

{

    AddTask("DoStuff", 60);

}



private void AddTask(string name, int seconds)

{

    OnCacheRemove = new CacheItemRemovedCallback(CacheItemRemoved);

    HttpRuntime.Cache.Insert(name, seconds, null,

        DateTime.Now.AddSeconds(seconds), Cache.NoSlidingExpiration,

        CacheItemPriority.NotRemovable, OnCacheRemove);

}



public void CacheItemRemoved(string k, object v, CacheItemRemovedReason r)

{

    // do stuff here if it matches our taskname, like WebRequest

    // re-add our task so it recurs

    AddTask(k, Convert.ToInt32(v));

}