asp.net Socket 通信

Socket 通讯协议主要有两种，一种是Tcp，另一种是Udp，显示情况中一般使用的都是Tcp，因为Udp 可能会丢数据

客户端代码：

   //创建发送数据的Socket,包括ip类型、数据类型、协议类型
            Socket sendSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            //设置发送数据的地址
            IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 12345);
            //创建读取文件的流
            FileStream fileStream = new FileStream(Server.MapPath("123.txt"), FileMode.OpenOrCreate, FileAccess.Read);

            //文件大小
            Byte[] fsSize = new Byte[fileStream.Length - 1];
            //读取文件的二进制流
            BinaryReader reader = new BinaryReader(fileStream);
            //读取数据
            reader.Read(fsSize, 0, (int)fileStream.Length - 1);
            //链接目的地
            sendSocket.Connect(endPoint);
            //发送数据
            sendSocket.Send(fsSize);
            //关闭文件流
            fileStream.Close();
            //关闭发送数据的Socket
            sendSocket.Shutdown(SocketShutdown.Send);
            sendSocket.Close();

客户端采用TcpClient 实现：

    int port=12345;

    string server= ""127.0.0.1;

   TcpClient client=new TcpClient(server,port);  //创建TcpClient并设置发送地址

    string sendMessage = "待发送的数据";

    Byte[] data = new Byte[2048];

     data= System.Text.Encoding.ASCII.GetBytes(message);

    NetworkStream stream =client.GetStream();  //为写入和读取数据，获取客户端数据流

    stream.Write(data,0,data.length); 

 

    string receiveMessage = string.Empty;

    Byte[] receiveByte=new Byte[2048];

    while(string.ISNullOrEmpty(receiveMessage))

    {

    stream.Read(receiveByte,0,receiveByte.Length);  //读取数据

    receiveMessage = System.Text.Encoding.ASCII.GetString(receiveByte);

    }

    stream.Close();

    client.Close();

 

服务端自己也没弄懂，另附上一些大神的文章供大家参考

http://blog.csdn.net/hcf_force/article/details/21169021

http://www.cnblogs.com/di305449473/archive/2008/08/22/1242615.html

http://www.cnblogs.com/sh_yao/archive/2010/11/29/1891166.html