asp.net – 在.ashx处理程序中查看状态？

public DataSet GetSomeData(string user,string query,string sort)
{
    // You could make the key just based on the query params but figured
    // you would want the user in there as well.
    // You could user just the user if you want to limit it to one cached item
    // per user too.
    string key = string.Format("{0}:{1}",user,query);

    DataSet ds = HttpContext.Current.Cache[key] as DataSet;
    if (ds == null)
    {
        // Need to reload or get the data
        ds = LoadMyData(query);

        // Now store it and make the expiry short so it doesn't bog up your server
        // needlessly... worst case you have to retrieve it again because the data
        // has expired.
        HttpContext.Current.Cache.Insert(key,ds,null,DateTime.UtcNow.AddMinutes(yourTimeout),System.Web.Caching.Cache.NoSlidingExpiration);
    }

    // Perform the sort or leave as default sorting and return
    return (string.IsNullOrEmpty(sort) ? ds : sortSortMyDataSet(ds,sort));
}

当你说1000个用户时,这是否意味着并发用户？如果您的到期时间是1分钟,那么有多少并发用户会在一分钟内拨打该电话并需要排序.我认为将数据卸载到类似于ViewState的东西只是交换一些缓存内存以获得带宽和来回处理大量请求的负载.在我看来,你来回传递的越少越好.