以下是同步聊天程序的客户端源代码。其中的一些过程可以参考服务器端源码
using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Net; using System.Net.Sockets; using System.Threading; using System.Text; namespace 聊天_socket_client { /// <summary> /// Form1 的摘要说明。 /// </summary> public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.Label label4; private System.Windows.Forms.Label label3; private System.Windows.Forms.Label label2; private System.Windows.Forms.Label label1; private System.Windows.Forms.Button btnStop; private System.Windows.Forms.Button btnSend; private System.Windows.Forms.TextBox txtPort; private System.Windows.Forms.TextBox txtServer; private System.Windows.Forms.RichTextBox rtbSend; private System.Windows.Forms.RichTextBox rtbReceive; private System.Windows.Forms.StatusBar statusBar1; private System.Windows.Forms.Button btnConnect; private IPAddress hostIPAddress; private IPEndPoint Server; private Socket sock; /// <summary> /// 必需的设计器变量。 /// </summary> private System.ComponentModel.Container components = null;
public Form1() { // // Windows 窗体设计器支持所必需的 // InitializeComponent();
// // TODO: 在 InitializeComponent 调用后添加任何构造函数代码 // }
/// <summary> /// 清理所有正在使用的资源。 /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); }
#region Windows 窗体设计器生成的代码 /// <summary> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// </summary> private void InitializeComponent() { this.label4 = new System.Windows.Forms.Label(); this.label3 = new System.Windows.Forms.Label(); this.label2 = new System.Windows.Forms.Label(); this.label1 = new System.Windows.Forms.Label(); this.btnStop = new System.Windows.Forms.Button(); this.btnSend = new System.Windows.Forms.Button(); this.btnConnect = new System.Windows.Forms.Button(); this.txtPort = new System.Windows.Forms.TextBox(); this.txtServer = new System.Windows.Forms.TextBox(); this.rtbSend = new System.Windows.Forms.RichTextBox(); this.rtbReceive = new System.Windows.Forms.RichTextBox(); this.statusBar1 = new System.Windows.Forms.StatusBar(); this.SuspendLayout(); // // label4 // this.label4.Location = new System.Drawing.Point(16, 152); this.label4.Name = "label4"; this.label4.Size = new System.Drawing.Size(64, 23); this.label4.TabIndex = 22; this.label4.Text = "发送信息:"; // // label3 // this.label3.Location = new System.Drawing.Point(16, 64); this.label3.Name = "label3"; this.label3.Size = new System.Drawing.Size(64, 23); this.label3.TabIndex = 21; this.label3.Text = "接收信息:"; // // label2 // this.label2.Location = new System.Drawing.Point(216, 16); this.label2.Name = "label2"; this.label2.Size = new System.Drawing.Size(64, 23); this.label2.TabIndex = 20; this.label2.Text = "监听端口:"; // // label1 // this.label1.Location = new System.Drawing.Point(16, 16); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(56, 23); this.label1.TabIndex = 19; this.label1.Text = "服务器:"; // // btnStop // this.btnStop.Location = new System.Drawing.Point(256, 256); this.btnStop.Name = "btnStop"; this.btnStop.TabIndex = 18; this.btnStop.Text = "关闭连接"; this.btnStop.Click += new System.EventHandler(this.btnStop_Click); // // btnSend // this.btnSend.Location = new System.Drawing.Point(144, 256); this.btnSend.Name = "btnSend"; this.btnSend.TabIndex = 17; this.btnSend.Text = "发送信息"; this.btnSend.Click += new System.EventHandler(this.btnSend_Click); // // btnConnect // this.btnConnect.Location = new System.Drawing.Point(32, 256); this.btnConnect.Name = "btnConnect"; this.btnConnect.TabIndex = 16; this.btnConnect.Text = "请求连接"; this.btnConnect.Click += new System.EventHandler(this.btnConnect_Click); // // txtPort // this.txtPort.Location = new System.Drawing.Point(288, 16); this.txtPort.Name = "txtPort"; this.txtPort.Size = new System.Drawing.Size(48, 21); this.txtPort.TabIndex = 15; this.txtPort.Text = "19811"; // // txtServer // this.txtServer.Location = new System.Drawing.Point(72, 16); this.txtServer.Name = "txtServer"; this.txtServer.TabIndex = 14; this.txtServer.Text = "127.0.0.1"; // // rtbSend // this.rtbSend.Location = new System.Drawing.Point(80, 152); this.rtbSend.Name = "rtbSend"; this.rtbSend.Size = new System.Drawing.Size(264, 96); this.rtbSend.TabIndex = 13; this.rtbSend.Text = ""; // // rtbReceive // this.rtbReceive.Location = new System.Drawing.Point(80, 56); this.rtbReceive.Name = "rtbReceive"; this.rtbReceive.Size = new System.Drawing.Size(264, 96); this.rtbReceive.TabIndex = 12; this.rtbReceive.Text = ""; // // statusBar1 // this.statusBar1.Location = new System.Drawing.Point(0, 287); this.statusBar1.Name = "statusBar1"; this.statusBar1.ShowPanels = true; this.statusBar1.Size = new System.Drawing.Size(360, 22); this.statusBar1.TabIndex = 23; this.statusBar1.Text = "statusBar1"; // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(360, 309); this.Controls.Add(this.statusBar1); this.Controls.Add(this.label4); this.Controls.Add(this.label3); this.Controls.Add(this.label2); this.Controls.Add(this.label1); this.Controls.Add(this.btnStop); this.Controls.Add(this.btnSend); this.Controls.Add(this.btnConnect); this.Controls.Add(this.txtPort); this.Controls.Add(this.txtServer); this.Controls.Add(this.rtbSend); this.Controls.Add(this.rtbReceive); this.Name = "Form1"; this.Text = "聊天程序-客户端"; this.Closing += new System.ComponentModel.CancelEventHandler(this.Form1_Closing); this.ResumeLayout(false);
} #endregion
/// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { Application.Run(new Form1()); }
private void btnConnect_Click(object sender, System.EventArgs e) { try { hostIPAddress=IPAddress.Parse(txtServer.Text); } catch{MessageBox.Show("请输入正确的IP地址格式。");} try { Server=new IPEndPoint(hostIPAddress,Int32.Parse(txtPort.Text)); sock=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp); sock.Connect(Server); statusBar1.Text="与主机"+txtServer.Text+"端口"+txtPort.Text+"连接成功"; Thread thread=new Thread(new ThreadStart(ThreadProc)); thread.Start(); } catch(Exception ee){MessageBox.Show(ee.Message);} } private void ThreadProc() { while(true) { Byte[] ByteRecv=new Byte[256]; sock.Receive(ByteRecv,ByteRecv.Length,0); string strRecv=Encoding.BigEndianUnicode.GetString(ByteRecv); rtbReceive.AppendText(strRecv+"\r\n"); } }
private void btnSend_Click(object sender, System.EventArgs e) { try { string strSend ="Client--->"+rtbSend.Text+"\r\n"; Byte[] ByteSend = Encoding.BigEndianUnicode.GetBytes(strSend); sock.Send(ByteSend,ByteSend.Length,0); } catch{MessageBox.Show("连接尚未建立,无法发送.");} }
private void btnStop_Click(object sender, System.EventArgs e) { try { sock.Close(); statusBar1.Text="与主机"+txtServer.Text+"端口"+txtPort.Text+"断开连接"; } catch{MessageBox.Show("连接尚未建立,关闭无效");} }
private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e) { try { sock.Close(); } catch{} } } }

|