其实这些东西网上都有，但是比较凌乱，很少有封装好的类，在此共享一下。。。
一个Socket服务器类，一个Socket客户端类，都可以直接拿去用，下边有详细的调用示例。
需要说明的是，服务器类没有处理多客户连接，只是简单的响应单客户连接。
另外，提醒一点，，尤其是很多新手容易犯的错误，就是服务器类处理事务是在线程中进行的，此时不能访问界面上的控件，需要委托跨线程访问。
Socket服务器类(SocketServicesHelper.cs)：
using System;using System.IO;using System.Net;using System.Net.Sockets;using System.Text;using System.Threading;using System.Diagnostics;using System.Text.RegularExpressions;namespace USBControl{/// <summary>/// Socket服务器类/// </summary>public class SocketServicesHelper{private Socket socket1 = null;private Socket socket2 = null;private Thread ListenThread = null;private int port = 0; //监听端口/// <summary>/// 构造方法/// </summary>/// <param name="port">监听端口</param>public SocketServicesHelper(int port){this.port = port;}/// <summary>/// 启动服务/// </summary>public void startServices(){try{//获取本机IPIPAddress ip = IPAddress.Parse(getIP());//步骤1 创建网络端点IPEndPointIPEndPoint myServer = new IPEndPoint(ip, port);//步骤2 创建套接字Socketsocket1 = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//步骤3 套接字绑定到网络端点socket1.Bind(myServer);//创建监听线程ListenThread = new Thread(new ThreadStart(ListenFunction));//启动线程ListenThread.Start();}catch (Exception ex){throw ex;}}/// <summary>/// 监听方法，在线程中启动/// </summary>void ListenFunction(){try{clsUSBControl usbcl = new clsUSBControl();RegChangeNotice regChangeNotice = new RegChangeNotice();//步骤4 设置最大客户端连接数socket1.Listen(5);//循环检测客户端连接while (true){//步骤5 检测客户端连接socket2 = socket1.Accept();//步骤6 判断连接状态if (socket2.Connected){//步骤7 接收客户端消息byte[] clientData = new byte[1024];int i = socket2.Receive(clientData);string removeMsg = Encoding.Unicode.GetString(clientData, 0, i).Split(new char[] { ‘|’ })[0].Split(new char[] { ‘ ‘ })[1];//根据消息做出相应动作}}}catch (Exception ex){throw ex;}finally{//关闭连接if (socket1.Connected){socket1.Shutdown(SocketShutdown.Both);socket1.Close();}if (socket2.Connected){socket2.Shutdown(SocketShutdown.Both);socket2.Close();}}}/// <summary>/// 获得本机IP地址/// </summary>/// <returns></returns>private string getIP(){string ipAddress = "";Process p = null;StreamReader reader = null;try{ProcessStartInfo start = new ProcessStartInfo("cmd.exe");start.FileName = "ipconfig";start.Arguments = "/all";start.CreateNoWindow = true;start.RedirectStandardOutput = true;start.RedirectStandardInput = true;start.UseShellExecute = false;p = Process.Start(start);reader = p.StandardOutput;string line = reader.ReadLine();while (!reader.EndOfStream){if (line.ToLower().IndexOf("ip address") > 0 || line.ToLower().IndexOf("ipv4 地址") > 0 || line.ToLower().IndexOf("ip地址") > 0){int index = line.IndexOf(":");index += 2;ipAddress = ipAddress + line.Substring(index) + ",";}line = reader.ReadLine();}}catch(Exception ex){throw ex;}finally{if (p != null){p.WaitForExit();p.Close();}if (reader != null){reader.Close();}}return Regex.Match(ipAddress.Equals("") ? ipAddress : ipAddress.Substring(0, ipAddress.Length – 1), "[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}").ToString();}}}
调用示例：
//实例化时传入监听端口，本机IP自动获取
SocketServicesHelper ssh = new SocketServicesHelper(8881);
//开始监听
ssh. startServices();
Socket 客户端类(SocketClientHelper.cs)：
using System;using System.IO;using System.Net;using System.Net.Sockets;using System.Text;namespace BLL{/// <summary>/// Socket客户端类/// </summary>public class SocketClientHelper{private IPAddress ip = null;private int port = 0;private Socket socket = null;/// <summary>/// 构造方法/// </summary>/// <param name="ip">服务器IP</param>/// <param name="port">服务器端口</param>public SocketClientHelper(IPAddress ip, int port){this.ip = ip;this.port = port;}/// <summary>/// 向服务器发送消息/// </summary>/// <param name="sendStr">消息内容</param>/// <returns></returns>public string send(string sendStr){try{LayerParameter lp = new LayerParameter();IPEndPoint removeServer = new IPEndPoint(ip, port);socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);socket.Connect(removeServer);//检查连接状态if (socket.Connected){//转换编码byte[] bs = Encoding.Unicode.GetBytes(sendStr);//发送消息socket.Send(bs, bs.Length, 0);//断开SOCKETsocket.Shutdown(SocketShutdown.Both);//关闭SOCKETsocket.Close();return "设置成功！";}else{return "与客户端通信失败，可能是电脑未开启或者客户端未开启！";}}catch (Exception ex){throw ex;}}}}
调用示例：
//实例化时传入服务器IP和消息端口
带着感恩的心启程，学会爱，爱父母，爱自己，爱朋友，爱他人。
