asp.net怎么统计软件的下载次数

Question

这个要在js判断了  return false 不计算 return true 计算 （不知道对不对） 请告诉解答

Answer 1

在button里加个aplication吗，或者在一个表中加个字段，每次点击了button时就更新字段啊

Answer 2

public class DownloadHandler : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
        string fileName = context.Request.QueryString["filename"].ToString();
        string filePath = "path of the file on disk"; //you know where your files are
        FileInfo file = new System.IO.FileInfo(filePath);
        if (file.Exists)
        {
            try
            {
                //更新数据库中的下载次数
            }
            catch (Exception)
            {
                //handl.
            }
            //return the file
            context.Response.Clear();
            context.Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
            context.Response.AddHeader("Content-Length", file.Length.ToString());
            context.Response.ContentType = "application/octet-stream";
            context.Response.WriteFile(file.FullName);
            context.ApplicationInstance.CompleteRequest();
            context.Response.End();
        }
    }
    public bool IsReusable
    {
        get { return true; }
    }
}Web.config
<httpHandlers>
    <add verb="GET" path="FileDownload.ashx" type="DownloadHandler"/>
</httpHandlers> page
<a href="FileDownload.ashx?filename=file.exe">Download file.exe</a>