c#如何实现文件下载，急用！

Question

已知服务器上文件路径：server.mapth（“文件名”）；
如何用c#实现将这个文件下载到客户端的指定文件夹内，比如:c:\temp
不用ftp的下载方法，有没有其他的方法啊？
请不要把网上ftp下载文件的代码发给我。谢谢！

Answer 1

没办法，听高人的，如果想实现想想从AJAX入手

Answer 2

给个连接应该就可以下在.
<a href="http://localhost:8080/test /excelModel20087343.rar"></a>

Answer 3

给个连接应该就可以下在. 
<a href="http://localhost:8080/test /excelModel20087343.rar"> </a>就是罗，，，
同意

Answer 4

用socket写了一个程序, 实现文件的传输:服务器端:using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Threading;namespace Server
{
    class Program
    {
        static void Main(string[] args)
        {
            //创建Socket, 并监听
            EndPoint point = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 6688);
            Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            server.Bind(point);
            server.Listen(100);
            Console.WriteLine("server is running...");
            while (true)
            {
                //接收到请求, 创建线程来处理该请求
                Socket socket = server.Accept();
                Console.WriteLine(DateTime.Now.ToString() + ": " + socket.RemoteEndPoint.ToString() + "connected");
                Thread thread = new Thread(new ParameterizedThreadStart(DownloadFile));
                thread.Start(socket);
            }
        }        /// <summary>
        /// 下载文件
        /// </summary>
        /// <param name="obj"></param>
        static void DownloadFile(object obj)
        {
            Socket socket = obj as Socket;
            List<byte> list = new List<byte>();            int bufferSize = 1024;
            byte[] buffer = new byte[bufferSize];
            int dataCount = 0;            while ((dataCount = socket.Receive(buffer)) > 0)
            {
                for (int i = 0; i < dataCount; i++)
                {
                    list.Add(buffer[i]);
                }
            }
            socket.Shutdown(SocketShutdown.Receive);            //读文件数据到内存
            string filePath = Encoding.Default.GetString(list.ToArray());
            byte[] bytes = null;
            if (System.IO.File.Exists(filePath))
            {
                FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                bytes = new byte[stream.Length];
                stream.Read(bytes, 0, (int)stream.Length);
                stream.Flush();
                stream.Close();
            }            //发送
            socket.Send(bytes);
            socket.Shutdown(SocketShutdown.Send);
        }
    }
}
客户端:using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;namespace Client
{
    class Program
    {
        static void Main(string[] args)
        {
            //服务器地址: 127.0.0.1
            IPAddress ipAddress = IPAddress.Parse("127.0.0.1");
            IPEndPoint ipEndPoint = new IPEndPoint(ipAddress, 6688);
            Socket client = new Socket(AddressFamily.InterNetwork,
                SocketType.Stream, ProtocolType.Tcp);            client.Connect(ipEndPoint);            //发送数据
            client.Send(System.Text.Encoding.Default.GetBytes(@"D:\test.txt"));
            client.Shutdown(SocketShutdown.Send);            //接收数据
            List<byte> list = new List<byte>();
            int bufferSize = 1024;
            byte[] buffer = new byte[bufferSize];
            int dataCount = 0;            while ((dataCount = client.Receive(buffer)) > 0)
            {
                for (int i = 0; i < dataCount; i++)
                {
                    list.Add(buffer[i]);
                }
            }
            client.Shutdown(SocketShutdown.Receive);            //将数据写入文件
            MemoryStream ms = new MemoryStream(list.ToArray());
            FileStream stream = new FileStream(@"d:\t.txt", FileMode.Create);
            ms.WriteTo(stream);
            ms.Flush();
            stream.Flush();
            stream.Close();
            ms.Close();            Console.WriteLine("OK");
            Console.ReadKey();
        }
    }
}

Answer 5

        string strFileName = this.DataList1.DataKeys[e.Item.ItemIndex].ToString();\\文件名
        string FullFileName = Page.Server.MapPath("Uploadfiles/") + strFileName;\\文件路径        FileInfo DownloadFile = new FileInfo(FullFileName);
        Response.Clear();
        Response.Charset = "utf-8";
        Response.Buffer = false;
        this.EnableViewState = false;
        Response.ContentEncoding = System.Text.Encoding.UTF8;
        Response.AppendHeader("Content-Disposition","attachment;filename=" + strFileName);
        Response.ContentType = "application/unknown ";
        Response.WriteFile(FullFileName);
        Response.Flush();
        Response.Close();
        Response.End();

Answer 6

看这里吧，有详细的说明
http://blog.csdn.net/y_qingbin/archive/2008/11/01/3197103.aspx

Answer 7

看这里吧，有详细说明
http://blog.csdn.net/y_qingbin/archive/2008/11/01/3197103.aspx

Answer 8

<a href="http://www.nethabede.com/a/com/bb.rar">下载</a>
这样就可以下载吧