asp.net實現服務器文件下載到本地

1、說明

　　通過文件下載框實現將服務器上的文件下載到本地指定位置。這里需要指定服務器文件路徑

    try
    {
        string strFilePath = Server.MapPath("~") + "/excel/20170206104654.xlsx";//服務器文件路徑
        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)
    {
        //不做處理
    }
    catch (Exception ex)
    {
        //做處理
    }