c sharp 聊天工具源代码以及截图

服务器编程：

using System;

using System.Collections.Generic;

using https://www.360docs.net/doc/3a13180747.html,ponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using https://www.360docs.net/doc/3a13180747.html,;

using https://www.360docs.net/doc/3a13180747.html,.Sockets;

using System.Threading;

namespace client

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

this.ListBoxState.Items.Clear();

this.richTextBoxAccept.Text = "";

this.richTextBoxSend.Text = "";

}

private Socket socket;

private Socket clientSocket;

private Thread thread1;

private void buttonStart_Click(object sender, EventArgs e)

{

this.buttonStart.Enabled = false;

IPAddress ip = IPAddress.Parse(this.textBoxIP.Text);

IPEndPoint server1 = new IPEndPoint(ip, Int32.Parse(this.textBoxPort.Text));

socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

socket.Bind(server1);

socket.Listen(10);

clientSocket = socket.Accept();

this.ListBoxState.Items.Add("与客户"+ clientSocket.RemoteEndPoint.ToString() + "建立链接");

thread1 = new Thread(new ThreadStart(AcceptMessage));

thread1.Start();

}

private void AcceptMessage()

{

while (true)

{

try

{

NetworkStream netStream = new NetworkStream(clientSocket);

byte[] datasize = new byte[4];

netStream.Read(datasize, 0, 4);

int size = System.BitConverter.ToInt32(datasize, 0);

Byte[] message = new byte[size];

int dataleft = size;

int start = 0;

while (dataleft>0)

{

int recv = netStream.Read(message, start, dataleft);

start += recv;

dataleft -= recv;

}

this.richTextBoxAccept.Rtf= System.Text.Encoding.Unicode.GetString(message); }

catch

{

this.ListBoxState.Items.Add("与客户断开连接");

break;

}

}

}

private void buttonSend_Click(object sender, EventArgs e)

{

string str = this.richTextBoxSend.Rtf;

int i = str.Length;

if(i==0)

{

return;

}

else

{

i *= 2;

}

byte[] datasize = new byte[4];

datasize = System.BitConverter.GetBytes(i);

byte[] sendbytes = System.Text.Encoding.Unicode.GetBytes(str);

try

{

// MessageBox.Show(clientSocket.RemoteEndPoint.ToString());

NetworkStream netStream = new NetworkStream(clientSocket);

netStream.Write(datasize, 0, 4);

netStream.Write(sendbytes, 0, sendbytes.Length);

netStream.Flush();

this.richTextBoxSend.Text = "";

}

catch

{

MessageBox.Show("无法发送!");

}

}

private void buttonStop_Click(object sender, EventArgs e)

{

this.buttonStart.Enabled = true;

try

{

//socket.Shutdown(SocketShutdown.); 这个为什么不用呢?

socket.Close();

if(clientSocket.Connected)

{

clientSocket.Close();

thread1.Abort();

}

}

catch(Exception e1)

{

MessageBox.Show(e1.ToString());

MessageBox.Show("监听尚未开始，关闭无效");

}

}

private void Form1_Load(object sender, EventArgs e)

{

}

private void Form1_FormClosing(object sender, FormClosingEventArgs e) {

try

{

// socket.Shutdown(SocketShutdown.Both);

socket.Close();

if (clientSocket.Connected)

{

clientSocket.Close();

thread1.Abort();

}

}

catch

{

}

}

}

}

客户端编程：

using System;

using System.Collections.Generic;

using https://www.360docs.net/doc/3a13180747.html,ponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using https://www.360docs.net/doc/3a13180747.html,;

using https://www.360docs.net/doc/3a13180747.html,.Sockets;

using System.Threading;

namespace server_反过来了_

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

this.ListBoxState.Items.Clear();

this.richTextBoxReceive.Text = "";

this.richTextBoxSend.Text = "";

}

private void Form1_Load(object sender, EventArgs e)

{

}

private void buttonRequest_Click(object sender, EventArgs e)

{

IPAddress ip = IPAddress.Parse(this.textBoxIP.Text);

IPEndPoint server1 = new IPEndPoint(ip, Int32.Parse(this.textBoxPort.Text));

socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

try

{

socket.Connect(server1);

}

catch

{

MessageBox.Show("与服务器连接失败");

return;

}

this.buttonRequest.Enabled = false;

this.ListBoxState.Items.Add("与服务器连接成功");

thread1 = new Thread(new ThreadStart(AcceptMessage));

thread1.Start();

}

private void AcceptMessage()

{

while (true)

{

try

{

NetworkStream netStream = new NetworkStream(socket);

byte[] datasize = new byte[4];

netStream.Read(datasize, 0, 4);

int size = System.BitConverter.ToInt32(datasize, 0);

Byte[] message = new byte[size];

int dataleft = size;

int start = 0;

while (dataleft > 0)

{

int recv = netStream.Read(message, start, dataleft);

start += recv;

dataleft -= recv;

}

this.richTextBoxReceive.Rtf =

System.Text.Encoding.Unicode.GetString(message);

}

catch

{

this.ListBoxState.Items.Add("与服务器断开连接");

break;

}

}

}

private Socket socket;

private Thread thread1;

private void buttonClose_Click(object sender, EventArgs e)

{

try

{

socket.Shutdown(SocketShutdown.Both);

socket.Close();

this.ListBoxState.Items.Add("与主机断开连接");

thread1.Abort();

}

catch

{

MessageBox.Show("尚未与主机连接，断开无效！");

}

this.buttonRequest.Enabled = true;

}

private void Form1_FormClosing(object sender, FormClosingEventArgs e) {

try

{

socket.Shutdown(SocketShutdown.Both);

socket.Close();

}

catch

{

}

}

private void buttonSend_Click(object sender, EventArgs e)

{

string str = this.richTextBoxSend.Rtf;

int i = str.Length;

if(i==0)

{

return;

}

else

{

i *= 2;