c# socket編程簡單例子

服務器端代碼

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
namespace SocketServer
{
    class Program
    {
        private static byte[] result = new byte[10];
        private static int myProt = 8885;   //端口  
        static Socket serverSocket;
        static void Main(string[] args)
        {
            //服務器IP地址  
            IPAddress ip = IPAddress.Parse("127.0.0.1");
            serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            serverSocket.Bind(new IPEndPoint(ip, myProt));  //綁定IP地址：端口  
            serverSocket.Listen(10);    //設定最多10個排隊連接請求  
            Console.WriteLine("啟動監聽{0}成功", serverSocket.LocalEndPoint.ToString());
            //通過Clientsoket發送數據  
            Thread myThread = new Thread(ListenClientConnect);
            myThread.Start();
            Console.ReadLine();
        }
        /// <summary>  
        /// 監聽客戶端連接  
        /// </summary>  
        private static void ListenClientConnect()
        {
            while (true)
            {
                Socket clientSocket = serverSocket.Accept();
                clientSocket.Send(Encoding.ASCII.GetBytes("Server Say Hello"));
                Thread receiveThread = new Thread(ReceiveMessage);
                receiveThread.Start(clientSocket);
            }
        }
        /// <summary>  
        /// 接收消息  
        /// </summary>  
        /// <param name="clientSocket"></param>  
        private static void ReceiveMessage(object clientSocket)
        {
            Socket myClientSocket = (Socket)clientSocket;
            while (true)
            {
                try
                {
                    //通過clientSocket接收數據  
                    int receiveNumber = myClientSocket.Receive(result);
                    if (receiveNumber == 0)
                    {
                        break;
                    }
                    Console.WriteLine("接收客戶端{0}消息{1}", myClientSocket.RemoteEndPoint.ToString(), Encoding.ASCII.GetString(result, 0, receiveNumber));
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                    break;
                }
            }
            myClientSocket.Shutdown(SocketShutdown.Both);
            myClientSocket.Close();
        }
    }
}

客戶端代碼

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
namespace SocketClient
{
    class Program
    {
        private static byte[] result = new byte[1024];
        static void Main(string[] args)
        {
            //設定服務器IP地址  
            IPAddress ip = IPAddress.Parse("127.0.0.1");
            Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            try
            {
                clientSocket.Connect(new IPEndPoint(ip, 8885)); //配置服務器IP與端口  
                Console.WriteLine("連接服務器成功");
            }
            catch
            {
                Console.WriteLine("連接服務器失敗，請按任意鍵退出！");
                Console.Read();
                return;
            }
            //通過clientSocket接收數據  
            int receiveLength = clientSocket.Receive(result);
            Console.WriteLine("接收服務器消息：{0}", Encoding.ASCII.GetString(result, 0, receiveLength));
            try
            {
                string sendMessage = "client send Message Hello @ " + DateTime.Now;
                clientSocket.Send(Encoding.ASCII.GetBytes(sendMessage));
                Console.WriteLine("向服務器發送消息：{0}" + sendMessage);
            }
            finally
            {
                clientSocket.Shutdown(SocketShutdown.Both);
                clientSocket.Close();
            }
            Console.WriteLine("發送完畢，按回車鍵退出");
            Console.ReadLine();
        }
    }
}