C#网络编程服务器端程序实现源码是怎么样的呢？让我们来看看其中重要的一部分：

    由于在此次程序中我们采用的结构是异步阻塞方式，所以在实际的程序中，为了不影响服务器端程序的运行速度，我们在程序中设计了一个线程，使得对网络请求侦听，接受和发送数据都在线程中处理，请在下面的代码中注意这一点，下面是C＃网络编程服务器端程序的完整代码：

//server.cs  

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 ;  
//C#网络编程服务器端程序  
//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 ( ) ;  
}  
//C#网络编程服务器端程序  
//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：" ;  
//C#网络编程服务器端程序  
//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 ( )  
{  
//C#网络编程服务器端程序  
//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  
//C#网络编程服务器端程序  
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 )  
{  
//C#网络编程服务器端程序  
//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 )  
{  
//C#网络编程服务器端程序  
//关闭线程和流  
networkStream.Close ( ) ;  
streamReader.Close ( ) ;  
streamWriter.Close ( ) ;  
_thread1.Abort ( ) ;  
tcpListener.Stop ( ) ;  
socketForClient.Shutdown ( SocketShutdown.Both ) ;  
socketForClient.Close ( ) ;  
}  
} 

    C#网络编程服务器端程序的实现源码就向你介绍到这里，希望对你了解和学习C#网络编程服务器端程序有所帮助。