C#版 Winform界面 Socket编程 Client客户端
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.IO; using System.Linq; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading; using System.Threading.Tasks; using System.Windows.Forms; namespace _07Client { public partial class Form1 : Form { public Form1() { InitializeComponent(); } Socket socketSend; 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); ShowMsg("连接成功"); //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:\Users\SpringRain\Desktop"; 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 + "\r\n"); } /// <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); } private void Form1_Load(object sender, EventArgs e) { Control.CheckForIllegalCrossThreadCalls = false; } } }