求简单的ASP.NET下载代码

Question

谁有，发个过来啊，要任何客户端txt都能够下载的

Answer 1

        /// <summary>
        /// 下载文件
        /// </summary>
        protected void Down_Click(object sender, EventArgs e)
        {
            //获取id集合
            string ids = Utils.GetRequest("cbItem");
            if (ids == string.Empty)
            {
                return;//未选择任何文件
            }
            List<int> list = Utils.Getids(ids);
            FileBLL filebll = new FileBLL();
            //下载选中文件
            foreach (int id in list)
            {
                Down(filebll.GetFile(id).FileAddr);
            }
        }

Answer 2

if (File.Exists(fileName))
            {
                Stream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.ContentType = "application/octet-stream";
                long num3 = stream.Length - 1L;
                HttpContext.Current.Response.AddHeader("Content-Range", "bytes 0-" + num3.ToString() + "/" + stream.Length.ToString());
                HttpContext.Current.Response.AddHeader("Content-Length", stream.Length.ToString());
                if (!isPreview)
                {
                    HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + displayName);
                }
                long length = stream.Length;
                byte[] buffer = new byte[block];
                while (length > 0L)
                {
                    if (HttpContext.Current.Response.IsClientConnected)
                    {
                        int count = stream.Read(buffer, 0, block);
                        HttpContext.Current.Response.OutputStream.Write(buffer, 0, count);
                        HttpContext.Current.Response.Flush();
                        buffer = new byte[block];
                        length -= count;
                    }
                    else
                    {
                        length = -1L;
                    }
                }
                stream.Close();
                HttpContext.Current.Response.End();
            }
            else
            {
                HttpContext.Current.Response.Write("file no found");
            }

Answer 3

模拟浏览器下载(点击文件，弹出保存/下载框)
一：建ashx文件XXX.ashx,包含下面两个方法：        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
    // 获取要下载的内容 byte[]类型(支持各种类型文件哦)
            var param= context.Request["参数名"];
    var content = "";
    // 执行下载
            DownLoad(context, content, sendMessage.AttachName);
        }

        private static void DownLoad(HttpContext context, byte[] content, string fileName)
        {
            context.Response.Clear();
            context.Response.ContentType = "application/octet-stream";
            context.Response.AddHeader("Content-Disposition", "标题;  filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
            context.Response.BinaryWrite(content);
            context.Response.Flush();
            context.Response.End();
        }
二：js code
点击文件
        window.location.href = "XXX.ashx?[参数名]=";

Answer 4

直接Redirect到文件的目录就行了。

Answer 5

这里有很多。。 自己去下载。。 http://www.51aspx.com

Answer 6

/// <summary>
        /// 下载文件
        /// </summary>
        protected void Down_Click(object sender, EventArgs e)
        {
            //获取id集合
            string ids = Utils.GetRequest("cbItem");
            if (ids == string.Empty)
            {
                return;//未选择任何文件
            }
            List<int> list = Utils.Getids(ids);
            FileBLL filebll = new FileBLL();
            //下载选中文件
            foreach (int id in list)
            {
                Down(filebll.GetFile(id).FileAddr);
            }
        }        /// <summary>
        /// 文件下载
        /// </summary>
        /// <param name="FilePath">文件路径</param>
        private void Down(string FilePath)
        {
            String FullFileName = System.Web.HttpContext.Current.Server.MapPath(FilePath); 
            FileInfo DownloadFile = new FileInfo(FullFileName); 
            System.Web.HttpContext.Current.Response.Clear(); 
            System.Web.HttpContext.Current.Response.ClearHeaders(); 
            System.Web.HttpContext.Current.Response.Buffer = false; 
            System.Web.HttpContext.Current.Response.ContentType = "application/octet-stream"; 
            System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(DownloadFile.FullName, System.Text.Encoding.UTF8)); 
            System.Web.HttpContext.Current.Response.AppendHeader("Content-Length", DownloadFile.Length.ToString()); 
            System.Web.HttpContext.Current.Response.WriteFile(DownloadFile.FullName); 
            System.Web.HttpContext.Current.Response.Flush(); 
            System.Web.HttpContext.Current.Response.End();
        }