原文&＃xff1a;http://www.cnblogs.com/licongjie/archive/2006/10/26/540640.html
服务器端代码&＃xff1a;
Code1
using System;2
using System.Collections.Generic;3
using System.ComponentModel;4
using System.Data;5
using System.Drawing;6
using System.Linq;7
using System.Text;8
using System.Windows.Forms;9
using System.Net;10
using System.Net.Sockets;11
using System.Threading;12
13
namespace Server14
{15
public partial class Form1 : Form16
{17
public Form1()18
{19
InitializeComponent();20
}21
22
Thread serverThread;23
Thread clientThread;24
Socket serverSocket;25
Socket clientSocket;26
27
public void ServerStart()28
{29
IPEndPoint ipep &＃61; new IPEndPoint(IPAddress.Any, 6009);30
serverSocket &＃61; new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);31
32
serverSocket.Bind(ipep);33
34
serverSocket.Listen(10);35
36
while (true)37
{38
try39
{40
clientSocket &＃61; serverSocket.Accept();41
clientThread &＃61; new Thread(new ThreadStart(ReceiveData));42
clientThread.Start();43
}44
catch (Exception ex)45
{46
MessageBox.Show("listening Error:" &＃43; ex.Message);47
}48
}49
}50
51
private void ReceiveData()52
{53
bool keepalive &＃61; true;54
55
Socket s &＃61; clientSocket;56
57
Byte[] buffer &＃61; new Byte[1024];58
59
//根据接收到得客户端套接字&＃xff0c;向客户端发送信息60
61
IPEndPoint clientep &＃61; (IPEndPoint)s.RemoteEndPoint;62
lstServer.Items.Add("Client:" &＃43; clientep.Address &＃43; "(" &＃43; clientep.Port &＃43; ")");63
64
string welcome &＃61; "welcome to here ";65
66
byte[] data &＃61; new byte[1024];67
68
data &＃61; Encoding.ASCII.GetBytes(welcome);69
70
s.Send(data, data.Length, SocketFlags.None);71
72
while (keepalive)73
{74
int bufLen &＃61; 0;75
76
try77
{78
bufLen &＃61; s.Available;79
80
81
82
s.Receive(buffer, 0, bufLen, SocketFlags.None);83
84
if (bufLen &＃61;&＃61; 0)85
continue;86
}87
catch (Exception ex)88
{89
MessageBox.Show("Receive Error:" &＃43; ex.Message);90
91
return;92
}93
94
clientep &＃61; (IPEndPoint)s.RemoteEndPoint;95
96
string clientcommand &＃61; System.Text.Encoding.ASCII.GetString(buffer).Substring(0, bufLen);97
98
99
lstServer.Items.Add(clientcommand &＃43; "(" &＃43; clientep.Address &＃43; ":" &＃43; clientep.Port &＃43; ")");100
101
102
string today &＃61; "today";103
byte[] data2 &＃61; new byte[1024];104
data2 &＃61; Encoding.ASCII.GetBytes(today);105
106
s.Send(data2, data2.Length, SocketFlags.None);107
108
}109
110
111
}112
113
private void btnOpen_Click(object sender, EventArgs e)114
{115
serverThread &＃61; new Thread(new ThreadStart(ServerStart));116
serverThread.Start();117
118
lstServer.Items.Add("Server Start .");119
}120
}121
}122
Code1
using System;2
using System.Collections.Generic;3
using System.ComponentModel;4
using System.Data;5
using System.Drawing;6
using System.Linq;7
using System.Text;8
using System.Windows.Forms;9
using System.Net;10
using System.Net.Sockets;11
using System.Threading;12
13
namespace Client14
{15
public partial class Form1 : Form16
{17
Socket clientSocket;18
Thread clientThread;19
20
public Form1()21
{22
InitializeComponent();23
}24
25
26
private void ConnectToServer()27
{28
byte[] data &＃61; new byte[1024];29
30
IPEndPoint ipep &＃61; new IPEndPoint(IPAddress.Parse("127.0.0.1"), 6009);31
32
clientSocket &＃61; new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);33
34
try35
{36
clientSocket.Connect(ipep);37
}38
catch (SocketException ex)39
{40
MessageBox.Show("connect error:" &＃43; ex.Message);41
return;42
}43
44
while (true)45
{46
int bufLen &＃61; 0;47
48
try49
{50
bufLen &＃61; clientSocket.Available;51
clientSocket.Receive(data, 0, bufLen, SocketFlags.None);52
53
if (bufLen &＃61;&＃61; 0)54
{55
continue;56
}57
}58
catch (Exception ex)59
{60
MessageBox.Show("Receive Error:" &＃43; ex.Message);61
return;62
}63
64
string clientcommand &＃61; System.Text.Encoding.ASCII.GetString(data).Substring(0, bufLen);65
66
lstClient.Items.Add(clientcommand);67
}68
}69
70
private void button1_Click(object sender, EventArgs e)71
{72
clientThread &＃61; new Thread(new ThreadStart(ConnectToServer));73
clientThread.Start();74
}75
76
private void btnSend_Click(object sender, EventArgs e)77
{78
byte[] data &＃61; new byte[1024];79
80
data &＃61; Encoding.ASCII.GetBytes(txtClient.Text);81
82
clientSocket.Send(data, data.Length, SocketFlags.None);83
}84
}85
}86
代码下载&＃xff1a;/Files/wenjie/socketsample.rar
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