C# Socket简单例子（服务器与客户端通信）

服务器端代码：

using System.Net.Sockets;  
using System.Net;  
using System.Threading;
using System;
using System.Text;
namespace SocketServer  
{  
    class Program  
    {  
        private static byte[] result = new byte[1024];  
        private static int myProt = 8885;   //端口  
        static Socket serverSocket;  
        static void Main(string[] args)  
        {  
            //服务器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));  //绑定IP地址：端口  
            serverSocket.Listen(10);    //设定最多10个排队连接请求  
            Console.WriteLine("启动监听{0}成功", serverSocket.LocalEndPoint.ToString());  
            //通过Clientsoket发送数据  
            Thread myThread = new Thread(ListenClientConnect);  
            myThread.Start();  
            Console.ReadLine();  
        }  
  
        /// <summary>  
        /// 监听客户端连接  
        /// </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  
                {  
                    //通过clientSocket接收数据  
                    int receiveNumber = myClientSocket.Receive(result);  
                    Console.WriteLine("接收客户端{0}消息{1}", myClientSocket.RemoteEndPoint.ToString(), Encoding.ASCII.GetString(result, 0, receiveNumber));  
                }  
                catch(Exception ex)  
                {  
                    Console.WriteLine(ex.Message);  
                    myClientSocket.Shutdown(SocketShutdown.Both);  
                    myClientSocket.Close();  
                    break;  
                }  
            }  
        }  
    }  
}  

客户端代码：

<pre name="code" class="csharp">using System.Net;  
using System.Net.Sockets;  
using System.Threading;
using System;
using System.Text;
namespace SocketClient  
{  
    class Program  
    {  
        private static byte[] result = new byte[1024];  
        static void Main(string[] args)  
        {  
            //设定服务器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)); //配置服务器IP与端口  
                Console.WriteLine("连接服务器成功");  
            }  
            catch  
            {  
                Console.WriteLine("连接服务器失败，请按回车键退出！");  
                return;  
            }  
            //通过clientSocket接收数据  
            int receiveLength = clientSocket.Receive(result);  
            Console.WriteLine("接收服务器消息：{0}",Encoding.ASCII.GetString(result,0,receiveLength));  
            //通过 clientSocket 发送数据  
            for (int i = 0; i < 10; i++)  
            {  
                try  
                {  
                    Thread.Sleep(1000);    //等待1秒钟  
                    string sendMessage = "client send Message Hellp" + DateTime.Now;  
                    clientSocket.Send(Encoding.ASCII.GetBytes(sendMessage));  
                    Console.WriteLine("向服务器发送消息：{0}" + sendMessage);  
                }  
                catch  
                {  
                    clientSocket.Shutdown(SocketShutdown.Both);  
                    clientSocket.Close();  
                    break;  
                }  
            }  
            Console.WriteLine("发送完毕，按回车键退出");  
            Console.ReadLine();  
        }  
    }  
}