private void Listen ( ) { try { tlTcpListen = new TcpListener ( port ) ; //以8000端口号来初始化TcpListener实例 tlTcpListen.Start ( ) ; //开始监听 statusBar1.Text = "正在监听..." ; tcClient = tlTcpListen.AcceptTcpClient ( ) ; //通过TCP连接请求 nsStream = tcClient.GetStream ( ) ; //获取用以发送、接收数据的网络基础数据流 srRead=new StreamReader(nsStream);//以得到的网络基础数据流来初始化StreamReader实例 statusBar1.Text = "已经连接!"; while( blistener ) //循环侦听 { string sMessage = srRead.ReadLine();//从网络基础数据流中读取一行数据 if ( sMessage == "STOP" ) //判断是否为断开TCP连接控制码 { tlTcpListen.Stop(); //关闭侦听 nsStream.Close(); //释放资源 srRead.Close(); statusBar1.Text = "连接已经关闭!" ; thThreadRead.Abort(); //中止线程 return; } string sTime = DateTime.Now.ToShortTimeString ( ) ; //获取接收数据时的时间 listBox1.Items.Add ( sTime + " " + sMessage ) ; } } catch ( System.Security.SecurityException ) { MessageBox.Show ( "侦听失败!" , "错误" ) ; } } //开始监听 private void button1_Click(object sender, System.EventArgs e) { thThreadRead = new Thread ( new ThreadStart ( Listen ) ); thThreadRead.Start();//启动线程 button1.Enabled=false; }
//连接 private void button1_Click(object sender, System.EventArgs e) { IPAddress ipRemote ; try { ipRemote = IPAddress.Parse ( textBox1.Text ) ; } catch //判断给定的IP地址的合法性 { MessageBox.Show ( "输入的IP地址不合法!" , "错误提示!" ) ; return ; } IPHostEntry ipHost ; try { ipHost = Dns.Resolve ( textBox1.Text ) ; } catch //判断IP地址对应主机是否在线 { MessageBox.Show ("远程主机不在线!" , "错误提示!" ) ; return ; } string sHostName = ipHost.HostName ; try { TcpClient tcpClient = new TcpClient(sHostName,8000);//对远程主机的8000端口提出TCP连接申请 nsStream = tcpClient.GetStream();//通过申请,并获取传送数据的网络基础数据流 swWriter = new StreamWriter(nsStream);//使用获取的网络基础数据流来初始化StreamWriter实例 button1.Enabled = false ; button2.Enabled = true ; tcpConnect = true ; statusBar1.Text = "已经连接!" ; } catch { MessageBox.Show ( "无法和远程主机8000端口建立连接!" , "错误提示!" ) ; return ; } } //发送 private void button2_Click(object sender, System.EventArgs e) { if (textBox2.Text !="") { swWriter.WriteLine(textBox2.Text);//刷新当前数据流中的数据 swWriter.Flush(); } else { MessageBox.Show("发送信息不能为空!","错误提示!"); } }
//连接 private void button1_Click(object sender, System.EventArgs e) { IPAddress ipRemote ; try { ipRemote = IPAddress.Parse ( textBox1.Text ) ; } catch //判断给定的IP地址的合法性 { MessageBox.Show ( "输入的IP地址不合法!" , "错误提示!" ) ; return ; } IPHostEntry ipHost ; try { ipHost = Dns.Resolve ( textBox1.Text ) ; } catch //判断IP地址对应主机是否在线 { MessageBox.Show ("远程主机不在线!" , "错误提示!" ) ; return ; } string sHostName = ipHost.HostName ; try { TcpClient tcpClient = new TcpClient(sHostName,8000);//对远程主机的8000端口提出TCP连接申请 nsStream = tcpClient.GetStream();//通过申请,并获取传送数据的网络基础数据流 swWriter = new StreamWriter(nsStream);//使用获取的网络基础数据流来初始化StreamWriter实例 button1.Enabled = false ; button2.Enabled = true ; tcpConnect = true ; statusBar1.Text = "已经连接!" ; } catch { MessageBox.Show ( "无法和远程主机8000端口建立连接!" , "错误提示!" ) ; return ; } } //发送 private void button2_Click(object sender, System.EventArgs e) { if (textBox2.Text !="") { swWriter.WriteLine(textBox2.Text);//刷新当前数据流中的数据 swWriter.Flush(); } else { MessageBox.Show("发送信息不能为空!","错误提示!"); } }
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using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
// 新添加的命令空间
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Text;
using System.IO;namespace SocketServer
{
/// <summary>
/// 服务器端。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.RichTextBox richTextBox1;
private System.Windows.Forms.Button button1;
// 客户端节点
private IPEndPoint client;
// 服务器端Socket
private Socket server;
// 服务器端监听线程
private Thread thdSvr;
// 网络数据流
NetworkStream stream;
// 写数据流
TextWriter writer;
// 读数据流
TextReader reader;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
// 监听线程
private void ThreadServer()
{
client = new IPEndPoint(IPAddress.Any, 34567);
server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
server.Blocking = true;
server.Bind(client);
server.Listen(0);
while(true)
{
Socket t = server.Accept();
if (t != null)
{
stream = new NetworkStream(t);
writer = new StreamWriter(stream);
reader = new StreamReader(stream);
richTextBox1.Text += "接收到一个连接...\n";
writer.WriteLine("欢迎连接到服务器!");
writer.Flush();
writer.WriteLine("您现在可以说话了...");
writer.Flush();
richTextBox1.Text += reader.ReadLine();
richTextBox1.Text += "\n";
reader.Close();
writer.Close();
stream.Close();
t.Close();
}
}
}
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(server != null)
server.Close();
if(!button1.Enabled)
if(thdSvr != null)
thdSvr.Abort();
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <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.richTextBox1 = new System.Windows.Forms.RichTextBox();
this.button1 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// richTextBox1
//
this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Top;
this.richTextBox1.Name = "richTextBox1";
this.richTextBox1.Size = new System.Drawing.Size(416, 256);
this.richTextBox1.TabIndex = 0;
this.richTextBox1.Text = "";
//
// button1
//
this.button1.Location = new System.Drawing.Point(152, 264);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "启动服务器";
this.button1.TextAlign = System.Drawing.ContentAlignment.TopCenter;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(8, 18);
this.ClientSize = new System.Drawing.Size(416, 296);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.button1,
this.richTextBox1});
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "服务器";
this.ResumeLayout(false); }
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
// 开始服务器端的运行。
private void button1_Click(object sender, System.EventArgs e)
{
thdSvr = new Thread(new ThreadStart(this.ThreadServer));
thdSvr.Start();
button1.Enabled = false;
}
}
}
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
// 新添加的命名空间。
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.IO;namespace SocketClient
{
/// <summary>
/// 客户端。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button button1;
private System.Windows.Forms.RichTextBox richTextBox1;
/// <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 Form Designer generated code
/// <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.button1 = new System.Windows.Forms.Button();
this.richTextBox1 = new System.Windows.Forms.RichTextBox();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(168, 272);
this.button1.Name = "button1";
this.button1.TabIndex = 0;
this.button1.Text = "连接";
this.button1.TextAlign = System.Drawing.ContentAlignment.TopCenter;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// richTextBox1
//
this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Top;
this.richTextBox1.Name = "richTextBox1";
this.richTextBox1.Size = new System.Drawing.Size(432, 264);
this.richTextBox1.TabIndex = 1;
this.richTextBox1.Text = "";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(8, 18);
this.ClientSize = new System.Drawing.Size(432, 304);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.richTextBox1,
this.button1});
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "客户端";
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 button1_Click(object sender, System.EventArgs e)
{
// 服务器IP地址
IPAddress serIP;
// 服务器节点
IPEndPoint server;
// 客户端Socket
Socket client;
// 客户端网络数据流
NetworkStream stream;
// 客户端写数据流
TextWriter writer;
// 客户端读数据流
TextReader reader; serIP = IPAddress.Parse("127.0.0.1");
server = new IPEndPoint(serIP,34567);
client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
client.Connect(server);
if(client.Connected)
{
stream = new NetworkStream(client);
writer = new StreamWriter(stream);
reader = new StreamReader(stream);
richTextBox1.Text += "连接到服务器...\n";
richTextBox1.Text += reader.ReadLine();
richTextBox1.Text += reader.ReadLine();
richTextBox1.Text += "\n";
writer.WriteLine("你好,服务器,很高兴能和你通讯,谢谢。");
writer.Flush();
reader.Close();
writer.Close();
stream.Close();
client.Close();
}
}
}
}