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重要方法: IPAddress ip = IPAddress.Any;//服务端设置 IPAddress ip = IPAddress.Parse(IP地址);//IP对象 IPEndPoint point = new IPEndPoint(ip,端口号);//设置端口号和IP; Socket socket = new Socket(AddressFamily.InterNetwork,SockType.Stream,PotocolType.Tcp); Socket.Connect(point);//客户端连接服务器; Socket.Bind(Point); //服务端绑定端口; Socket.Listen() ;//服务端设置监听数据长度; Socket.Accept();//等待客户端连接,创建客户端Socket对象; Socket.Receive();//接收客户端传来的消息; Encoding.UTF8.GetString();//将字节转换成字符串; Socket.Send(buffer);//消息发送:发送字节组;
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服务器:
1、设置服务器:端口 、IP;
IPAddress ip = IPAddress.Parse("IP地址");//设置ip地址对象 IPEndPoint point = new IPEndPoint(ip,端口号[int]); //设置端口号和ip
2、设置服务器:Socket 通信对象;
Socket socketwatch = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
3、服务器Socket绑定 端口 和 IP;
sockwatch.Bind(point);
4、设置服务器监听数据长度,0表示无限;
sockwatch.listen(0);
5、服务器Socket等待客户端连接,并创建客户端通信对象。
Socket socketsend = socketwatch.accept();
6、接收客户端上传消息。
byte[]buffer=new byte[1024*1024*2]; int r= socketsend.Receive(buffer); //将接收的数据赋值到 字节组 buffer数组中; string str = Encoding.UTF8.GetString(buffer,0,r); //将字节转换为字符串;
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客户端:
1、设置服务器端口和IP;
IPAddress ip = IPAddress.Parse("ip地址"); //服务器IP IPEndPoint point = new IPEndPoint(ip,端口号); //服务器端口和IP
2、创建客户端Socket对象;
Socket socksend = new Socket(AddressFamily.InerNetwork,SocketType.Stream,ProtocolType.Tcp);
3、连接服务器;
socksend.Connect(point);//连接服务器
4、接收服务器传输数据;
byte []buffer = new byte[1024*1024*2]; int r = socketsend.Receive(buffer); //填充字节组,获取字节长度; string str = EnCoding.UTF8.GetString(buffer,0,r);//将字节数据组转换为字符串;
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服务端代码
public partial class FormServer : Form { public FormServer() { InitializeComponent(); } //声明 socketSend 用于等待客户端的连接 并且创建与之通信用的SocketSend,//等客户端连接//接受到client连接,为此连接建立新的socket,并接受信息 Socket socketSend; //将远程连接的客户端的IP地址和Socket存入集合中 Dictionary<string, Socket> dicSocket = new Dictionary<string, Socket>(); void ShowMsg(string str)//给消息文本框加文本的方法 { txtLog.AppendText(str + " "); } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnStart_Click(object sender, EventArgs e) { try { IPAddress ip = IPAddress.Any; IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(txtPort.Text));//创建终结点(EndPoint) Socket socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//建立监视的Socket socketWatch.Bind(point);//使得Socket绑定Bind()端口,参数为EndPoint//监听 ShowMsg("监听成功"); socketWatch.Listen(0);//参数是监听的最大长度,0是无限 Thread th = new Thread(Listen);//新建线程,运行soketWatch(),这里的Listen是自定义的方法 th.IsBackground = true;//线程为后台属性 th.Start(socketWatch);//提供线程要执行的方法的要使用的数据(参数)的对象 } catch { } } //被线程执行的函数,用于Accept()新建Socket,把每次的新建Socket,添加RemoteEndPoint到Dic集合,添加到cbo下拉列表框,有参数的话,必须是object类型 void Listen(object o) { Socket socketWatch = o as Socket;//as 强转语句,object o参数强转为Socket类型 while (true) { try { /*---------主要代码----------------*/ socketSend = socketWatch.Accept();//等待客户端的连接 并且创建一个负责通信的Socket dicSocket.Add(socketSend.RemoteEndPoint.ToString(), socketSend);//将远程连接的客户端的IP地址和Socket存入集合中 /*---------主要代码----------------*/ Action<string> action = (data) => { cboUsers.Items.Add(data); }; Invoke(action, socketSend.RemoteEndPoint.ToString()); ShowMsg(socketSend.RemoteEndPoint.ToString() + ":" + "连接成功");//192.168.11.78:连接成功 /*---------主要代码----------------*/ Thread th = new Thread(Recive);//开启 一个新线程不停的接受客户端发送过来的消息 th.IsBackground = true; th.Start(socketSend); /*---------主要代码----------------*/ } catch { } } } /// <summary> /// 接收信息 /// </summary> /// <param name="o"></param> void Recive(object o)//被线程执行的函数,用于服务器端不停的接受客户端发送过来的消息,并打印出来 { Socket socketSend = o as Socket; while (true) { try { //客户端连接成功后,服务器应该接受客户端发来的消息 byte[] buffer = new byte[1024 * 1024 * 2]; //实际接受到的有效字节数 int r = socketSend.Receive(buffer); if (r == 0) { break; } string str = Encoding.UTF8.GetString(buffer, 0, r); ShowMsg(socketSend.RemoteEndPoint + ":" + str); } catch { } } } private void btnSelect_Click(object sender, EventArgs e)// 选择要发送的文件 { OpenFileDialog ofd = new OpenFileDialog(); ofd.InitialDirectory = @"C:UsersSpringRainDesktop"; ofd.Title = "请选择要发送的文件"; ofd.Filter = "所有文件|*.*"; ofd.ShowDialog(); txtPath.Text = ofd.FileName; } //自定义协议,在传递的字节数组前面加上一个字节作为标识,0表示文字,1表示文件,2表示震动 private void btnSend_Click(object sender, EventArgs e)//服务器给客户端发送消息 { string str = txtMsg.Text;//消息框文本 byte[] buffer = System.Text.Encoding.UTF8.GetBytes(str); List<byte> list = new List<byte>();//存入list list.Add(0);//是自定义协议,在传递的字节数组前面加上一个字节作为标识,0表示文字,1表示文件 list.AddRange(buffer);//添加buffer数组进集合list byte[] newBuffer = list.ToArray();//将泛型集合转换为数组 string ip = cboUsers.SelectedItem.ToString(); //获得用户在下拉框中选中的IP地址 dicSocket[ip].Send(newBuffer);//Socket.Send()将数据发送到连接的Socket//socketSend.Send(buffer); } private void btnSendFile_Click(object sender, EventArgs e) { //获得要发送文件的路径 string path = txtPath.Text; using (FileStream fsRead = new FileStream(path, FileMode.Open, FileAccess.Read)) { byte[] buffer = new byte[1024 * 1024 * 5]; int r = fsRead.Read(buffer, 0, buffer.Length); List<byte> list = new List<byte>(); list.Add(1); list.AddRange(buffer); byte[] newBuffer = list.ToArray(); dicSocket[cboUsers.SelectedItem.ToString()].Send(newBuffer, 0, r + 1, SocketFlags.None); } } /// <summary> /// 发送震动 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnZD_Click(object sender, EventArgs e) { byte[] buffer = new byte[1]; buffer[0] = 2; dicSocket[cboUsers.SelectedItem.ToString()].Send(buffer); } }
客户端代码
public partial class FormClient : Form { public Socket socketSend; public FormClient() { InitializeComponent(); } private void btnStart_Click(object sender, EventArgs e) { try { //创建负责通信的Socket socketSend = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress ip = IPAddress.Parse(txtServer.Text); IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(txtPort.Text)); //获得要连接的远程服务器应用程序的IP地址和端口号 socketSend.Connect(point); this.label3.Text = "连接状态:"+"连接成功";// 连接状态: //开启一个新的线程不停的接收服务端发来的消息 Thread th = new Thread(Recive); th.IsBackground = true; th.Start(); } catch { } } /// <summary> /// 不停的接受服务器发来的消息 /// </summary> void Recive() { while (true) { try { byte[] buffer = new byte[1024 * 1024 * 3]; int r = socketSend.Receive(buffer); //实际接收到的有效字节数 if (r == 0) { break; } //表示发送的文字消息 if (buffer[0] == 0) { string s = Encoding.UTF8.GetString(buffer, 1, r - 1); ShowMsg(socketSend.RemoteEndPoint + ":" + s); } else if (buffer[0] == 1) { SaveFileDialog sfd = new SaveFileDialog(); sfd.InitialDirectory = @"C:UsersSpringRainDesktop"; sfd.Title = "请选择要保存的文件"; sfd.Filter = "所有文件|*.*"; sfd.ShowDialog(this); string path = sfd.FileName; using (FileStream fsWrite = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write)) { fsWrite.Write(buffer, 1, r - 1); } MessageBox.Show("保存成功"); } else if (buffer[0] == 2) { ZD(); } } catch { } } } /// <summary> /// 震动 /// </summary> void ZD() { for (int i = 0; i < 500; i++) { this.Location = new Point(200, 200); this.Location = new Point(280, 280); } } void ShowMsg(string str) { txtLog.AppendText(str + " "); } /// <summary> /// 客户端给服务器发送消息 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnSend_Click(object sender, EventArgs e) { string str = txtMsg.Text.Trim(); byte[] buffer = System.Text.Encoding.UTF8.GetBytes(str); socketSend.Send(buffer); } }
源码:https://files.cnblogs.com/files/lanyubaicl/CSocket.zip