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作者:马金虎 来源:yesky 2007年11月14日
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using System ; using System.Drawing ; using System.Collections ; using System.ComponentModel ; using System.Windows.Forms ; using System.Data ; using System.Net.Sockets ; using System.IO ; using System.Threading ; using System.Net ; //导入程序中使用到的名字空间 public class Form1 : Form { private ListBox ListBox1 ; private Button button2 ; private Label label1 ; private TextBox textBox1 ; private Button button1 ; private Socket socketForClient ; private NetworkStream networkStream ; private TcpListener tcpListener ; private StreamWriter streamWriter ; private StreamReader streamReader ; private Thread _thread1 ; private System.ComponentModel.Container components = null ; public Form1 ( ) { InitializeComponent ( ) ; } //清除程序中使用的各种资源 protected override void Dispose ( bool disposing ) { if ( disposing ) { if ( components != null ) { components.Dispose ( ) ; } } base.Dispose ( disposing ) ; } private void InitializeComponent ( ) { label1 = new Label ( ) ; button2 = new Button ( ) ; button1 = new Button ( ) ; ListBox1 = new ListBox ( ) ; textBox1 = new TextBox ( ) ; SuspendLayout ( ) ; label1.Location = new Point ( 8 , 168 ) ; label1.Name = "label1" ; label1.Size = new Size ( 120 , 23 ) ; label1.TabIndex = 3 ; label1.Text = "往客户端反馈信息:" ; //同样的方式设置其他控件,这里略去 this.Controls.Add ( button1 ) ; this.Controls.Add ( textBox1 ) ; this.Controls.Add ( label1 ) ; this.Controls.Add ( button2 ) ; this.Controls.Add ( ListBox1 ) ; this.MaximizeBox = false ; this.MinimizeBox = false ; this.Name = "Form1" ; this.Text = "C#的网络编程服务器端!" ; this.Closed += new System.EventHandler ( this.Form1_Closed ) ; this.ResumeLayout ( false ) ; } private void Listen ( ) { //创建一个tcpListener对象,此对象主要是对给定端口进行侦听 tcpListener = new TcpListener ( 1234 ) ; //开始侦听 tcpListener.Start ( ) ; //返回可以用以处理连接的Socket实例 socketForClient = tcpListener.AcceptSocket ( ) ; try { //如果返回值是"true",则产生的套节字已经接受来自远方的连接请求 if ( socketForClient.Connected ) { ListBox1.Items.Add ( "已经和客户端成功连接!" ) ; while ( true ) { //创建networkStream对象通过网络套节字来接受和发送数据 networkStream = new NetworkStream ( socketForClient ) ; //从当前数据流中读取一行字符,返回值是字符串 streamReader = new StreamReader ( networkStream ) ; string msg = streamReader.ReadLine ( ) ; ListBox1.Items.Add ( "收到客户端信息:" + msg ) ; streamWriter = new StreamWriter ( networkStream ) ; if ( textBox1.Text != "" ) { ListBox1.Items.Add ( "往客户端反馈信息:" + textBox1.Text ) ; //往当前的数据流中写入一行字符串 streamWriter.WriteLine ( textBox1.Text ) ; //刷新当前数据流中的数据 streamWriter.Flush ( ) ; } } } } catch ( Exception ey ) { MessageBox.Show ( ey.ToString ( ) ) ; } } static void Main ( ) { Application.Run ( new Form1 ( ) ) ; } private void button1_Click ( object sender , System.EventArgs e ) { ListBox1.Items .Add ( "服务已经启动!" ) ; _thread1 = new Thread ( new ThreadStart ( Listen ) ) ; _thread1.Start ( ) ; } private void button2_Click ( object sender , System.EventArgs e ) { //关闭线程和流 networkStream.Close ( ) ; streamReader.Close ( ) ; streamWriter.Close ( ) ; _thread1.Abort ( ) ; tcpListener.Stop ( ) ; socketForClient.Shutdown ( SocketShutdown.Both ) ; socketForClient.Close ( ) ; } private void Form1_Closed ( object sender , System.EventArgs e ) { //关闭线程和流 networkStream.Close ( ) ; streamReader.Close ( ) ; streamWriter.Close ( ) ; _thread1.Abort ( ) ; tcpListener.Stop ( ) ; socketForClient.Shutdown ( SocketShutdown.Both ) ; socketForClient.Close ( ) ; } } |
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