C# Socket 通过网络远程连接 发送接收字符！

Question

我要用socket 写个发送接收字符串   连接远程服务器 怎么实现  谁能给个实例！

Answer 1

http://msdn.microsoft.com/zh-cn/library/system.net.sockets.socket(v=VS.90).aspx
本人觉得上面的这个例子就很好的。

Answer 2

server端
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.Sockets;
using System.Net;
using System.Threading;
namespace se
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
      
        private IPEndPoint MyServer;
        private Socket sock;
        private Socket handler;
        private bool bb = true;        private void Form1_Load(object sender, EventArgs e)
        {
            try
            {
                MyServer = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 999);
                sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                sock.Bind(MyServer);
                sock.Listen(50);
                toolStripStatusLabel1.Text = "开始监听 ．．．";
                sock.BeginAccept(new AsyncCallback(AcceptCallback), sock);
            }
            catch (Exception ee) { toolStripStatusLabel1.Text = ee.Message; }            Control.CheckForIllegalCrossThreadCalls = false;        }        private void targett()
        {
            if (handler.Connected)
            {
                toolStripStatusLabel1.Text = "与客户建立连接。";
                while (bb)
                {
                    Byte[] bbb = new Byte[640];
                    handler.Receive(bbb, bbb.Length, 0);
                    string ccc = System.Text.Encoding.UTF8.GetString(bbb);
                    string x = "w";
                    int i = ccc.IndexOf(x);
                    if (i > 0)
                    {
                        saveUser(ccc);
                    }
                    richTextBox1.AppendText(ccc + "\r\n");
                }
            }
        }
        private void saveUser(string str) 
        { 
           
        }
        private void AcceptCallback(IAsyncResult ar)
        {
            toolStripStatusLabel1.Text = "与客户建立连接!";
            handler = ((Socket)ar.AsyncState).EndAccept(ar);
            Thread thread = new Thread(new ThreadStart(targett));
            thread.Start();
        }     }
}客户端：
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.Sockets;
using System.Net;
using System.Threading;
namespace Client
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
  
    private IPEndPoint MyServer; 
        private Socket sock; 
        private bool bb = true; 
                
        private void Form1_Load(object sender, EventArgs e) 
        { 
            Control.CheckForIllegalCrossThreadCalls = false; 
        } 
        
        private void targett() 
        { 
            while (bb) 
            { 
                Byte[] bbb = new Byte[640]; 
                sock.Receive(bbb, bbb.Length, 0); 
                string aaaaa = System.Text.Encoding.BigEndianUnicode.GetString(bbb);
                this.richTextBox1.AppendText(aaaaa); 
            } 
        } 
        
        private void button2_Click(object sender, EventArgs e) 
        { 
            try 
            { 
                Byte[] bytee = new Byte[640];
                string send = this.richTextBox2.Text + "\r\n"; 
                bytee = System.Text.Encoding.BigEndianUnicode.GetBytes(send.ToCharArray()); 
                sock.Send(bytee, bytee.Length, 0); 
            } 
            catch { MessageBox.Show("连接尚未建立! 无法发送!"); } 
        }        private void richTextBox1_TextChanged(object sender, EventArgs e)
        {        }        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                Byte[] bytee = new Byte[640];
                string send = this.richTextBox2.Text + "\r\n";
                bytee = System.Text.Encoding.UTF8.GetBytes(send.ToCharArray());
                sock.Send(bytee, bytee.Length, 0);
            }
            catch { MessageBox.Show("连接尚未建立! 无法发送!"); } 
        }        private void button2_Click_1(object sender, EventArgs e)
        {
            try
            {
                MyServer = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 999);
                sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                sock.Connect(MyServer);
                this.label1.Text = "连接成功!";
                Thread thread = new Thread(new ThreadStart(targett));
                thread.Start();
            }
            catch (Exception ee) { MessageBox.Show(ee.Message); } 
        }
    }
}
这是我 以前找的参考的  例子 ，非原创。
LZ自己总结一下 就可以啦 
多多总结   多多思考   

Answer 3

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);
    }
}

Answer 4

http://www.ubosm.com/Article/ShowArticle.asp?ArticleID=403有例子，有源码！！！

Answer 5

有现成的包包括了TcpClinet、UDPClient、Socket等客户端、服务器代码