asp.net实现服务器文件下载到本地

1、说明

　　通过文件下载框实现将服务器上的文件下载到本地指定位置。这里需要指定服务器文件路径

    try
    {
        string strFilePath = Server.MapPath("~") + "/excel/20170206104654.xlsx";//服务器文件路径
        FileInfo fileInfo = new FileInfo(strFilePath);
        Response.Clear();
        Response.Charset = "GB2312";
        Response.ContentEncoding = System.Text.Encoding.UTF8;
        Response.AddHeader("Content-Disposition", "attachment;filename=" + Server.UrlEncode(fileInfo.Name));
        Response.AddHeader("Content-Length", fileInfo.Length.ToString());
        Response.ContentType = "application/x-bittorrent";
        Response.WriteFile(fileInfo.FullName);
        Response.End();
    }
    catch (System.Threading.ThreadAbortException ex)
    {
        //不做处理
    }
    catch (Exception ex)
    {
        //做处理
    }