套接字编程实现信息传输

来源：互联网发布：经知考试网网址编辑：程序博客网时间：2024/06/04 13:19

using System;using System.Net;using System.Net.Sockets;using System.Threading;using System.Text;using System.Collections.Generic;using System.Net.NetworkInformation;namespace TcpServer{    class Program    {        static void Main(string[] args)        {            Server server = new Server();            server.StartUp();            while(true)            {                string str = Console.ReadLine();                server.SendAll(str);            }        }    }    public class Server    {        //配置相关        private string _ip = "192.168.30.16";        private int _port = 10000;        //服务器套接字        private Socket _server;        //接受客户端连接的线程，因为Accept是一个阻塞线程的方法，而且此方法还需要循环执行        private Thread _acceptClientConnectThread;        //所有已经连接的客户端        private List<Socket> _clientList = new List<Socket>();        /// <summary>        /// 启动服务器 = 建立流式套接字 + 配置本地地址        /// </summary>        public void StartUp()        {            try            {                //建立套接字 ， 寻址方案，套接字类型，协议类型                _server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);                //_server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);                //配置本地地址                EndPoint endPoint = new IPEndPoint(GetIpv4(NetworkInterfaceType.Ethernet), _port);                _server.Bind(endPoint);                //监听和接受客户端请求                _server.Listen(30);                //开启一个接受连接的线程                _acceptClientConnectThread = new Thread(AcceptClientConnect);                _acceptClientConnectThread.Start();                Console.WriteLine("{0}:{1} StartUp...", _ip, _port);            }            catch(Exception e)            {                Console.WriteLine(e.Message);            }        }        /// <summary>        /// 接受客户端连接        /// </summary>        public void AcceptClientConnect()        {            while(true)            {                try                {                    //接受客户端连接                    Socket clientSocket = _server.Accept();                    //维护一个客户端在线列表                    _clientList.Add(clientSocket);                    //获取客户端的网络地址标识                    IPEndPoint clientEndPoint = clientSocket.RemoteEndPoint as IPEndPoint;                    //输出一下地址和端口                    Console.WriteLine("{0}：{1} Connect...", clientEndPoint.Address.ToString(), clientEndPoint.Port);                    //接受客户端消息的线程                    Thread acceptClientMsg = new Thread(AcceptMsg);                    acceptClientMsg.Start(clientSocket);                }                catch(Exception e)                {                    Console.WriteLine(e.Message);                }            }        }        /// <summary>        /// 接受消息        /// </summary>        public void AcceptMsg(object obj)        {            //强转为Socket类型            Socket client = obj as Socket;            //字节数组 接受传来的信息  1024 * 64            byte[] buffer = new byte[client.ReceiveBufferSize];            //获取客户端的网络地址标识            IPEndPoint clientEndPoint = client.RemoteEndPoint as IPEndPoint;            try            {                while (true)                {                    //接受消息                    int len = client.Receive(buffer);                    string str = Encoding.UTF8.GetString(buffer, 0, len);                    Console.WriteLine("Receive {0} : {1}   ：{2}", clientEndPoint.Address.ToString(), _port, str);                }            }            catch(SocketException e)            {                Console.WriteLine(e.Message);                _clientList.Remove(client);            }        }        /// <summary>        /// 给某一个客户端发送消息        /// </summary>        public void Send(string str,Socket client)        {            try            {                //string => byte[]                byte[] strBytes = Encoding.UTF8.GetBytes(str);                client.Send(strBytes);            }            catch(Exception e)            {                Console.WriteLine(e.Message);            }        }        /// <summary>        /// 发送给所有人        /// </summary>        public void SendAll(string str)        {            for (int i = 0; i < _clientList.Count; i++)            {                Send(str, _clientList[i]);            }        }        /// <summary>        /// 获取Ip地址        /// </summary>        public IPAddress GetIpv4(NetworkInterfaceType type)        {            NetworkInterface[] networkInterfaces = NetworkInterface.GetAllNetworkInterfaces();            for (int i = 0; i < networkInterfaces.Length; i++)            {                if(type == networkInterfaces[i].NetworkInterfaceType && networkInterfaces[i].OperationalStatus == OperationalStatus.Up)                {                    UnicastIPAddressInformationCollection ips = networkInterfaces[i].GetIPProperties().UnicastAddresses;                    foreach (UnicastIPAddressInformation item in ips)                    {                        if(item.Address.AddressFamily == AddressFamily.InterNetwork)                        {                            return item.Address;                        }                    }                }            }            return null;        }        /// <summary>        /// 关闭套接字        /// </summary>        public void Close()        {            if(_clientList.Count > 0)            {                for (int i = 0; i < _clientList.Count; i++)                {                    _clientList[i].Close();                }            }            _clientList.Clear();            _server.Close();            _acceptClientConnectThread.Abort();        }    }}

using System;using System.Net;using System.Net.Sockets;using System.Threading;using System.Text;namespace TcpClient{    class Program    {        static void Main(string[] args)        {            Client client = new Client();            client.StartUp();            while (true)            {                string str = Console.ReadLine();                client.Send(str);            }                 }    }    public class Client    {        private Socket _client;        private Thread _acceptServerMsg;        public void StartUp()        {            try            {                _client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);                //客户端连接                _client.Connect("192.168.30.16", 10000);                //接受消息的线程                _acceptServerMsg = new Thread(AcceptServerMsg);                _acceptServerMsg.Start();            }            catch(Exception e)            {                Console.WriteLine(e.Message);            }        }        public void AcceptServerMsg()        {            byte[] buffer = new byte[1024 * 64];            while(true)            {                try                {                    int len = _client.Receive(buffer);                    string str = Encoding.UTF8.GetString(buffer, 0, len);                    Console.WriteLine("Reveive Msg From Server : {0}", str);                }                catch(Exception e)                {                    Console.WriteLine(e.Message);                }            }        }        /// <summary>        /// 发送消息        /// </summary>        public void Send(string str)        {            try            {                //string => byte[]                byte[] strBytes = Encoding.UTF8.GetBytes(str);                _client.Send(strBytes);            }            catch(Exception e)            {                Console.WriteLine(e.Message);            }        }        /// <summary>        /// 关闭套接字        /// </summary>        public void Close()        {            if (_client.Connected)            {                _client.Close();            }            _acceptServerMsg.Abort();        }    }}

阅读全文

0 0