c# socket传送大文件分享代码。

小范f-li.cn 2010-05-31 05:14:43

这里贴核心部分。

using System;

using System.Net;

using System.Net.Sockets;

using System.IO;

using System.Text;



namespace FileSender

{

    public static class FileSender

    {

        private const int BufferSize = 1024;



        public static void Send(IPEndPoint ip, string path)

        {

            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            sock.Connect(ip);

            using (FileStream reader = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.None))

            {

                long send = 0L, length = reader.Length;

                sock.Send(BitConverter.GetBytes(length));

                string fileName = Path.GetFileName(path);

                sock.Send(Encoding.Default.GetBytes(fileName));

                Console.WriteLine("Sending file:" + fileName + ".Plz wait...");

                byte[] buffer = new byte[BufferSize];

                int read, sent;

                //断点发送 在这里判断设置reader.Position即可

                while ((read = reader.Read(buffer, 0, BufferSize)) != 0)

                {

                    sent = 0;

                    while ((sent += sock.Send(buffer, sent, read, SocketFlags.None)) < read)

                    {

                        send += (long)sent;

                        //Console.WriteLine("Sent " + send + "/" + length + ".");//进度

                    }

                }

                Console.WriteLine("Send finish.");

            }

        }



        public static void Receive(IPEndPoint ip, string path)

        {

            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            sock.Bind(ip);

            sock.Listen(1);

            Socket client = sock.Accept();

            byte[] buffer = new byte[BufferSize];

            client.Receive(buffer);

            long receive = 0L, length = BitConverter.ToInt64(buffer, 0);

            string fileName = Encoding.Default.GetString(buffer, 0, client.Receive(buffer));

            Console.WriteLine("Receiveing file:" + fileName + ".Plz wait...");

            using (FileStream writer = new FileStream(Path.Combine(path, fileName), FileMode.Create, FileAccess.Write, FileShare.None))

            {

                int received;

                //断点接受 在这里判断设置writer.Position即可

                while (receive < length)

                {

                    received = client.Receive(buffer);

                    writer.Write(buffer, 0, received);

                    writer.Flush();

                    receive += (long)received;

                    //Console.WriteLine("Received " + receive + "/" + length + ".");//进度

                }

            }

            Console.WriteLine("Receive finish.");

        }

    }

}