[分享]更新上一次发的socket传大文件（加了断点续传）

[小范f-li.cn]

上一贴：http://topic.csdn.net/u/20100531/17/dbfbbe52-3c44-4105-b13a-b05380f063d2.html

核心代码

//#define Sleep
#undef Sleep
using System;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Text;
using System.Threading;

namespace Rocky
{
    public static class FileTransmitor
    {
        private const int BufferSize = 1024;
        public static readonly IPEndPoint TestIP;

        static FileTransmitor()
        {
            AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
            TestIP = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 520);
        }

        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            StreamWriter writer = new StreamWriter(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "exec.log"), true, Encoding.Default);
            writer.WriteLine(e.ExceptionObject);
            writer.Dispose();
        }

        public static void Send(IPEndPoint ip, string path)
        {
            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            sock.Connect(ip);
            byte[] buffer = new byte[BufferSize];
            using (FileStream reader = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.None))
            {
                long send, length = reader.Length;
                sock.Send(BitConverter.GetBytes(length));
                string fileName = Path.GetFileName(path);
                sock.Send(buffer, 0, Encoding.Default.GetBytes(fileName, 0, fileName.Length, buffer, 0), SocketFlags.None);
                Console.WriteLine("Sending file:" + fileName + ".Plz wait...");
                sock.Receive(buffer);
                reader.Position = send = BitConverter.ToInt64(buffer, 0);
                int read, sent;
                while ((read = reader.Read(buffer, 0, BufferSize)) != 0)
                {
                    sent = 0;
                    while ((sent += sock.Send(buffer, sent, read, SocketFlags.None)) < read)
                    {
                        send += (long)sent;
#if Sleep
                        Thread.Sleep(200);
#endif
                        //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, length = BitConverter.ToInt64(buffer, 0);
            string fileName = Encoding.Default.GetString(buffer, 0, client.Receive(buffer));
            Console.WriteLine("Receiveing file:" + fileName + ".Plz wait...");
            //string filePath = Path.Combine(path, fileName), tempExtension = ".temp", tempPath = filePath + tempExtension;
            FileInfo file = new FileInfo(Path.Combine(path, fileName));
            using (FileStream writer = file.Open(file.Exists ? FileMode.Append : FileMode.CreateNew, FileAccess.Write, FileShare.None))
            {
                receive = writer.Length;
                client.Send(BitConverter.GetBytes(receive));
                int received;
                while (receive < length)
                {
                    received = client.Receive(buffer);
                    if (received == 0)
                    {
                        Console.WriteLine("Send Stop.");
                        return;
                    }
                    writer.Write(buffer, 0, received);
                    writer.Flush();
                    receive += (long)received;
#if Sleep
                    Thread.Sleep(200);
#endif
                    //Console.WriteLine("Received " + receive + "/" + length + ".");//进度
                }
            }
            Console.WriteLine("Receive finish.");
        }
    }
}

下次更新：多线程多通道传输。 :)

[无心雨云]

学习中
sf

[jsonzbc]

多谢lz分享....学习。。。

[hyblusea]

继续期待楼主的佳作

[小范f-li.cn]

测试代码：
server:

            FileTransmitor.Receive(FileTransmitor.TestIP, @"E:\");//接受放到那个盘里 保存路径=这个参数+发送到文件名。
            Console.ReadLine();

client:

            Console.WriteLine("Plz type in a file path.");
            string file = Console.ReadLine();
            FileTransmitor.Send(FileTransmitor.TestIP, file);
            Console.ReadLine();

[huwen7565833]

楼主好人啊！！！
这段时间正在为大文件的传输速度慢烦劳！！

[周药师]

不如做个资源 让网友去下载直接看结果

[haiben080808]

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​ ​ ​ ​ ​ ​ ​ ​}