基本流程
Server
private void btnStart_Click(object sender, EventArgs e) { try { //當點擊開始監聽時在服務器端創建一個負責監視IP地址和端口號的socket Socket socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress ip = IPAddress.Any; //創建端口號對象 IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(txtPort.Text)); //監聽 socketWatch.Bind(point); ShowMsg("監聽成功"); socketWatch.Listen(10); Thread th = new Thread(Listen); th.IsBackground = true; th.Start(socketWatch); } catch { } } void ShowMsg(string str) { txtLog.AppendText(str + "\r\n"); } Socket socketSend; void Listen(object o) { Socket socketWatch = o as Socket; //等待客戶端連接且創建一個負責通訊的socket while (true) { try { //負責跟客戶端通訊的socket 怎么存它？--下拉框 socketSend = socketWatch.Accept(); //將遠程連接的客戶端的(ip地址+端口號)和socket存入集合 disSocket.Add(socketSend.RemoteEndPoint.ToString(), socketSend); //將遠程連接的客戶端的(ip地址+端口號)和socket存入下拉框中 cboUsers.Items.Add(socketSend.RemoteEndPoint.ToString()); //例192.168.1.1:連接成功 ShowMsg(socketSend.RemoteEndPoint.ToString() + ":" + "連接成功"); //開啟一個新線程不停的接收客戶端法發來的消息 Thread th = new Thread(Receive); th.IsBackground = true; th.Start(socketSend); } catch { } } } //將遠程連接的客戶端的(ip地址+端口號)和socket存入集合 Dictionary<string, Socket> disSocket = new Dictionary<string, Socket>(); void Receive(object o)//服務器不停的接收客戶端發來的消息 { Socket socketSend = o as Socket; while (true) { try { //客戶端連接成功后 服務器接收客戶端發送的消息 byte[] buffer = new byte[1024 * 1024 * 2]; //實際接收到的有效字節數 int r = socketSend.Receive(buffer); if (r == 0) { break; } string str = Encoding.UTF8.GetString(buffer, 0, r); ShowMsg(socketSend.RemoteEndPoint + ":" + str); } catch { } } } private void Form1_Load(object sender, EventArgs e) { Control.CheckForIllegalCrossThreadCalls = false; } //服務器給客戶端發送消息 private void btnSend_Click(object sender, EventArgs e) { try { string str = txtMsg.Text; byte[] buffer = System.Text.Encoding.UTF8.GetBytes(str); List<byte> list = new List<byte>(); list.Add(0); list.AddRange(buffer); //將泛型集合轉換為數組 byte[] newBuffer = list.ToArray(); //socketSend.Send(buffer); //獲得用戶在下拉框中選中的IP地址 string ip = cboUsers.SelectedItem.ToString(); disSocket[ip].Send(newBuffer); } catch { } } //選擇要發送的文件 private void btnSelect_Click(object sender, EventArgs e) { OpenFileDialog ofd = new OpenFileDialog(); ofd.InitialDirectory = @"C:\Users\xu.huang\Desktop"; ofd.Title = "請選擇要發送的文件"; ofd.Filter = "所有文件|*.*"; ofd.ShowDialog(); txtPath.Text = ofd.FileName; } private void btnSendFile_Click(object sender, EventArgs e) { //獲得要發送的文件的路徑 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(); disSocket[cboUsers.SelectedItem.ToString()].Send(newBuffer, 0, r + 1, SocketFlags.None); } } private void btnZd_Click(object sender, EventArgs e) { try { byte[] buffer = new byte[1]; buffer[0] = 2; disSocket[cboUsers.SelectedItem.ToString()].Send(buffer); } catch { } }
Client
Socket socketSend; private void btnStart_Click(object sender, EventArgs e) { try { //創建負責通信的Socket socketSend = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //拿到本機ip地址及端口號 IPAddress ip = IPAddress.Parse(txtServer.Text); IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(txtPort.Text)); //獲得要連接的服務器的ip地址及端口號 socketSend.Connect(point); ShowMsg("連接成功"); //開啟一個新線程不停的接收服務器發來的消息 Thread th = new Thread(Receive); th.IsBackground = true; th.Start(); } catch { } } void ShowMsg(string str) { txtLog.AppendText(str + "\r\n"); } //不停的接收服務器發來的消息 void Receive() { while (true) { try { byte[] buffer = new byte[1024 * 1024 * 3]; //實際接收到的字節數 int r = socketSend.Receive(buffer);//--拿出來的哦~ if (r == 0)//--拿出來的哦~ { break; } 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:\Users\xu.huang\Desktop"; sfd.Title = "請選擇要保存的文件"; 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 { } } } //客戶端給服務器發送消息 private void btnSend_Click(object sender, EventArgs e) { string str = txtMsg.Text; byte[] buffer = System.Text.Encoding.UTF8.GetBytes(str); socketSend.Send(buffer); } //取消跨線程檢查 private void Form1_Load(object sender, EventArgs e) { Control.CheckForIllegalCrossThreadCalls = false; } //震動 void Zd() { for (int i = 0; i < 500; i++) { this.Location = new Point(200, 200); this.Location = new Point(300, 300); } }