ASP.NET下载

源码：

 

protected void LinkButton_xia_Command(object sender, CommandEventArgs e)
    {
       string name=DownloadInfoManager.GetModel(Convert.ToInt32(e.CommandArgument)).D_name.ToString();

       string fileName = name; //客户端保存的文件名    
       string filePath = Server.MapPath("~/images/meansFlie/" + name);//路径   

       //以字符流的形式下载文件    
       FileStream fs = new FileStream(filePath, FileMode.Open);
       byte[] bytes = new byte[(int)fs.Length];
       fs.Read(bytes, 0, bytes.Length);
       fs.Close();
       Response.ContentType = "application/octet-stream";
       //通知浏览器下载文件而不是打开    
       Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
       Response.BinaryWrite(bytes);
       Response.Flush();
       Response.End();   

    }

 

测试：

 

protected void Button1_Click(object sender, EventArgs e)
        {
            string fileName = "进晴物流.pptx"; //客户端保存的文件名 
            string filePath = Server.MapPath("downinfo/进晴物流.pptx" );//路径 

            //以字符流的形式下载文件    
            FileStream fs = new FileStream(filePath, FileMode.Open);
            byte[] bytes = new byte[(int)fs.Length];
            fs.Read(bytes, 0, bytes.Length);
            fs.Close();
            Response.ContentType = "application/octet-stream";
            //通知浏览器下载文件而不是打开    
            Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
            Response.BinaryWrite(bytes);
            Response.Flush();
            Response.End();

        }