c# 如何实现端口数据的 通信

[smgzfhxy]

查阅好多资料也不没看明白怎么操作 '
我只需要向端口发送数据 和接受数据
服务端协议 已经早就存在
是 delphi 开发的
不知道 是否存在语言的对接问题?
还有MSDN 关于socket的代码 我也搞不清楚 怎么用
比如 ---------------------
using System;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;

public class GetSocket
{
private static Socket ConnectSocket(string server, int port)
{
Socket s = null;
IPHostEntry hostEntry = null;

// Get host related information.
hostEntry = Dns.GetHostEntry(server);

// Loop through the AddressList to obtain the supported AddressFamily. This is to avoid
// an exception that occurs when the host IP Address is not compatible with the address family
// (typical in the IPv6 case).
foreach(IPAddress address in hostEntry.AddressList)
{
IPEndPoint ipe = new IPEndPoint(address, port);
Socket tempSocket =
new Socket(ipe.AddressFamily, SocketType.Stream, ProtocolType.Tcp);

tempSocket.Connect(ipe);

if(tempSocket.Connected)
{
s = tempSocket;
break;
}
else
{
continue;
}
}
return s;
}

// This method requests the home page content for the specified server.
private static string SocketSendReceive(string server, int port)
{
string request = "GET / HTTP/1.1\r\nHost: " + server +
"\r\nConnection: Close\r\n\r\n";
Byte[] bytesSent = Encoding.ASCII.GetBytes(request);
Byte[] bytesReceived = new Byte[256];

// Create a socket connection with the specified server and port.
Socket s = ConnectSocket(server, port);

if (s == null)
return ("Connection failed");

// Send request to the server.
s.Send(bytesSent, bytesSent.Length, 0);

// Receive the server home page content.
int bytes = 0;
string page = "Default HTML page on " + server + ":\r\n";

// The following will block until te page is transmitted.
do {
bytes = s.Receive(bytesReceived, bytesReceived.Length, 0);
page = page + Encoding.ASCII.GetString(bytesReceived, 0, bytes);
}
while (bytes > 0);

return page;
}

public static void Main(string[] args)
{
string host;
int port = 80;

if (args.Length == 0)
// If no server name is passed as argument to this program,
// use the current host name as the default.
host = Dns.GetHostName();
else
host = args[0];

string result = SocketSendReceive(host, port);
Console.WriteLine(result);
}
-------------------------------------------------------------------------------------
我本地一直没有是通 不知道效果是怎么样的
希望大家给予指导谢谢

[walkghost]

异步的socket通讯。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace SocketTest
{
    public partial class Form1 : Form
    { 
       private  IPAddress ServerIP;
       private IPEndPoint _ipendPoint;
      Socket _mySocket;
            Socket listen;
            Thread listenTH;
        Thread thread;
        public Form1()
        {
            InitializeComponent();
        }

        private void btnStartService_Click(object sender, EventArgs e)
        {

            //创建socket
            ServerIP = IPAddress.Parse(txtServerIP.Text.Trim());
            _ipendPoint = new IPEndPoint(ServerIP, int.Parse(txtServerPort.Text.Trim()));
            _mySocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            _mySocket.Bind(_ipendPoint);
            _mySocket.Listen(102400);
            lbServerStateTXT.Text = "Server is started...";

            listenTH = new Thread(new ThreadStart(LintenClient));
            listenTH.IsBackground = true;
            listenTH.Start();

            //timer1.Start();
        }
        private void LintenClient()
        {

            listen = _mySocket.Accept();
           thread = new Thread(new ThreadStart(threadproc));
            thread.IsBackground = true;
            thread.Start();
        
        }
        private void threadproc()
        {
            byte[] receiveMSG = new byte[10240];
         
            listen.Receive(receiveMSG);
            
           
        
           
            ASCIIEncoding ec = new ASCIIEncoding();
            if (ec.GetString(receiveMSG) != "")
            {
                TXT(ec.GetString(receiveMSG));
               
            }

           
        }

        private void btnStopService_Click(object sender, EventArgs e)
        {
            
            _mySocket.Close();
            lbServerStateTXT.Text = "Server is stop service!";
        }

        private delegate void ADDMSG(String str);

        public void TXT(string str)
        {
            if (this.InvokeRequired)
            {
                ADDMSG call = delegate(string s)
                {
                    txtRecive.Text += str;
                };
                this.Invoke(call, str);
            }
            else
            {
                txtRecive.Text += str;
            }

            string strsend = "Server had recived MSG!";
            byte[] bufferSend = new byte[1021];
            bufferSend = System.Text.Encoding.Default.GetBytes(strsend);
            listen.Send(bufferSend);

            listenTH.Abort();
            listen.Close();
            thread.Abort();
            //_mySocket.Close();
           
        }

       

        private void btnSend_Click(object sender, EventArgs e)
        {
            //发送数据
            byte[] sendmsg = new byte[102300];
            byte[] receivemsg = new byte[102300];
            Socket mysender = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            try
            {
                if (txtBoxSendServerPort.Text.Trim()!="")
                {
                    mysender.Connect(txtBoxSendServerIP.Text, int.Parse(txtBoxSendServerPort.Text.Trim()));
                }
                else
                {
                    mysender.Connect("127.0.0.1", 8888);
                }
            }
            catch (Exception e2)
            {
                txtRecive.AppendText(e2.Message);
            }
            sendmsg = Encoding.Default.GetBytes(txtSend.Text);

            try
                {
                    mysender.Send(sendmsg);
                    
                }
            catch (Exception e2)
                {
                    txtRecive.AppendText(e2.Message);
                }

                try
                {
                    mysender.Close();
                }
                catch (Exception e2)
                {
                    txtRecive.AppendText(e2.Message);
                }
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            //listenTH.Abort();
        }
    }
}