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java socket/swing聊天程序

很久以前寫的程序，搬過來做個備忘：
服務器端代碼：

package com.test.talk;
2

import java.awt.BorderLayout;
4

import java.awt.FlowLayout;
5

import java.awt.event.ActionEvent;
6

import java.awt.event.ActionListener;
7

import java.awt.event.WindowAdapter;
8

import java.awt.event.WindowEvent;
9

import java.io.DataInputStream;
10

import java.io.DataOutputStream;
11

import java.io.IOException;
12

import java.net.BindException;
13

import java.net.ServerSocket;
14

import java.net.Socket;
15

import java.util.LinkedList;
16

import java.util.List;
17

import javax.swing.JButton;
19

import javax.swing.JFrame;
20

import javax.swing.JLabel;
21

import javax.swing.JPanel;
22

import javax.swing.JTextField;
23

public class Server extends JFrame
25

{
26

boolean started = false;
27

private ServerSocket ss = null;
29

private List clientList = new LinkedList();
31

private JLabel portLbl = null;
33

private JTextField portTxt = null;
35

private JButton portSetBtn = null;
37

private String port = null;
39

private JButton startBtn = null;
41

private JButton stopBtn = null;
43

private JPanel mainPanle = null;
45

private JPanel headPanle = null;
47

public static void main(String[] args)
49

{
50

new Server();
51

}
52

public Server()
54

{
55

headPanle = new JPanel(new FlowLayout(FlowLayout.LEFT));
56

portLbl = new JLabel("PORT");
57

portTxt = new JTextField(7);
58

portSetBtn = new JButton("OK");
59

portSetBtn.addActionListener(new ActionListener()
60

{
61

public void actionPerformed(ActionEvent e)
62

{
63

if (portTxt.getText().matches("\\d+"))
64

{
65

port = portTxt.getText();
66

startBtn.setEnabled(true);
67

stopBtn.setEnabled(true);
68

}
69

else
70

{
71

javax.swing.JOptionPane.showMessageDialog(null, "port be inputted is illegal");
72

}
73

}
74

});
75

headPanle.add(portLbl);
76

headPanle.add(portTxt);
77

headPanle.add(portSetBtn);
78

getContentPane().add(headPanle, BorderLayout.NORTH);
79

startBtn = new JButton("Start");
80

stopBtn = new JButton("Stop");
81

startBtn.setEnabled(false);
82

stopBtn.setEnabled(false);
83

mainPanle = new JPanel(new FlowLayout(FlowLayout.CENTER));
84

startBtn.addActionListener(new StartClickListener());
85

stopBtn.addActionListener(new ActionListener()
87

{
88

public void actionPerformed(ActionEvent e)
89

{
90

started = false;
91

clientList.clear();
92

try
93

{
94

if (ss != null)
95

{
96

ss.close();
97

}
98

}
99

catch(IOException e1)
100

{
101

e1.printStackTrace();
102

}
103

}
104

});
105

mainPanle.add(startBtn);
106

mainPanle.add(stopBtn);
107

getContentPane().add(mainPanle, BorderLayout.CENTER);
108

109

addWindowListener(new WindowAdapter()
110

{
111

public void windowClosing(WindowEvent e)
112

{
113

started = false;
114

clientList.clear();
115

try
116

{
117

if (ss != null)
118

{
119

ss.close();
120

}
121

}
122

catch(IOException e1)
123

{
124

e1.printStackTrace();
125

}
126

System.exit(0);
127

}
128

});
129

130

this.setSize(300, 300);
131

setLocation(100, 100);
132

pack();
133

setVisible(true);
134

}
135

136

private void start()
137

{
138

try
139

{
140

ss = new ServerSocket(Integer.parseInt(port));
141

started = true;
142

}
143

catch(BindException be)
144

{
145

javax.swing.JOptionPane.showMessageDialog(null, "port is useing by others");
146

}
147

catch(IOException e)
148

{
149

javax.swing.JOptionPane.showMessageDialog(null, "connect server fail");
150

}
151

try
152

{
153

while(started)
154

{
155

Socket s = ss.accept();
156

ClientImpl cr = new ClientImpl(s);
157

new Thread(cr).start();
158

clientList.add(cr);
159

System.out.println("System Info：" + s.getInetAddress() + "connect successfully");
160

}
161

}
162

catch(IOException e)
163

{
164

System.out.println("Client closed!");
165

}
166

}
167

168

class ClientImpl implements Runnable
169

{
170

private Socket s;
171

172

private DataInputStream dis = null;
173

174

private DataOutputStream dos = null;
175

176

boolean bConnect = false;
177

178

public ClientImpl(Socket s)
179

{
180

this.s = s;
181

try
182

{
183

dis = new DataInputStream(s.getInputStream());
184

dos = new DataOutputStream(s.getOutputStream());
185

bConnect = true;
186

}
187

catch(IOException e)
188

{
189

e.printStackTrace();
190

}
191

}
192

193

private void send(String str)
194

{
195

try
196

{
197

dos.writeUTF(str);
198

}
199

catch(IOException e)
200

{
201

e.printStackTrace();
202

}
203

204

}
205

206

public void run()
207

{
208

ClientImpl cr = null;
209

try
210

{
211

while(bConnect)
212

{
213

String str = dis.readUTF();
214

System.out.println(str);
215

for(int i = 0; i < clientList.size(); i++)
216

{
217

cr = (ClientImpl) clientList.get(i);
218

cr.send(str);
219

}
220

}
221

}
222

catch(Exception e)
223

{
224

clientList.remove(cr);
225

System.out.println(s.getInetAddress() + "has leaved");
226

}
227

finally
228

{
229

try
230

{
231

if (dis != null)
232

dis.close();
233

if (dos != null)
234

dos.close();
235

if (s != null)
236

{
237

s.close();
238

s = null;
239

}
240

}
241

catch(IOException io)
242

{
243

io.printStackTrace();
244

}
245

}
246

}
247

}
248

249

class StartClickListener implements Runnable, ActionListener
250

{
251

public void actionPerformed(ActionEvent e)
252

{
253

new Thread(this).start();
254

}
255

256

public void run()
257

{
258

start();
259

}
260

}
261

}
262

客戶端代碼：

package com.test.talk;
2

import java.awt.BorderLayout;
4

import java.awt.FlowLayout;
5

import java.awt.event.ActionEvent;
6

import java.awt.event.ActionListener;
7

import java.awt.event.WindowAdapter;
8

import java.awt.event.WindowEvent;
9

import java.io.DataInputStream;
10

import java.io.DataOutputStream;
11

import java.io.IOException;
12

import java.net.Socket;
13

import java.net.UnknownHostException;
14

import javax.swing.JButton;
16

import javax.swing.JFrame;
17

import javax.swing.JLabel;
18

import javax.swing.JPanel;
19

import javax.swing.JTextArea;
20

import javax.swing.JTextField;
21

/**
23

* Client
24

*
25

* @author hx0272
26

*
27

*/
28

public class Client
29

{
30

public static void main(String[] args)
31

{
32

ClientFrame frame = new ClientFrame();
33

}
34

}
35

class ClientFrame extends JFrame
37

{
38

private JPanel mainPanel;
39

private JPanel headPanel;
41

private JPanel footPanel;
43

private JTextArea showArea;
45

private JTextField inputTxt;
47

private JLabel portLbl;
49

private JLabel ipLbl;
51

private JLabel nameLbl;
53

private JTextField portTxt;
55

private JTextField ipTxt;
57

private JTextField nameTxt;
59

private JButton submitBtn;
61

private JButton nameBtn;
63

private JButton loginBtn;
65

private Socket clientSocket = null;
67

private DataOutputStream dos = null;
69

private DataInputStream dis = null;
71

private boolean bConnect = false;
73

private String name = "";
75

public ClientFrame()
77

{
78

init();
79

}
80

private void init()
82

{
83

//main panel Begin
84

mainPanel = new JPanel();
85

showArea = new JTextArea(15, 80);
86

showArea.setEditable(false);
87

mainPanel.add(showArea);
88

getContentPane().add(mainPanel, BorderLayout.CENTER);
89

//main panel End
90

//head panel Begin
92

headPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
93

portLbl = new JLabel("PORT");
94

portTxt = new JTextField(7);
95

ipLbl = new JLabel("IP");
96

ipTxt = new JTextField(25);
97

nameLbl = new JLabel("name");
99

100

nameTxt = new JTextField(15);
101

102

nameBtn = new JButton("OK");
103

104

loginBtn = new JButton("login");
105

nameBtn.addActionListener(new ActionListener()
106

{
107

public void actionPerformed(ActionEvent e)
108

{
109

String tmp = nameTxt.getText();
110

if (tmp != null || !tmp.equals(""))
111

{
112

int id = javax.swing.JOptionPane.showConfirmDialog(null, "yes or no", "choose yes",
113

javax.swing.JOptionPane.OK_OPTION);
114

if (id == 0)
115

{
116

name = nameTxt.getText();
117

loginBtn.setEnabled(true);
118

nameBtn.setEnabled(false);
119

}
120

}
121

}
122

});
123

headPanel.add(portLbl);
124

headPanel.add(portTxt);
125

headPanel.add(ipLbl);
126

headPanel.add(ipTxt);
127

128

headPanel.add(loginBtn);
129

headPanel.add(nameLbl);
130

headPanel.add(nameTxt);
131

headPanel.add(nameBtn);
132

loginBtn.setEnabled(false);
133

loginBtn.addActionListener(new ButtonClickAction());
134

getContentPane().add(headPanel, BorderLayout.NORTH);
135

//head panel End
136

137

//foot panel Begin
138

footPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
139

inputTxt = new JTextField(70);
140

submitBtn = new JButton("submit");
141

142

footPanel.add(inputTxt);
143

footPanel.add(submitBtn);
144

145

submitBtn.addActionListener(new ButtonClickAction());
146

submitBtn.setEnabled(false);
147

getContentPane().add(footPanel, BorderLayout.SOUTH);
148

//foot panel End
149

150

addWindowListener(new WindowAdapter()
151

{
152

public void windowClosing(WindowEvent e)
153

{
154

disConnect();
155

System.exit(0);
156

}
157

});
158

159

this.setSize(300, 300);
160

setLocation(100, 100);
161

pack();
162

setVisible(true);
163

}
164

165

/**
166

* login button / submit button action listener
167

*
168

* @author hx0272
169

*
170

*/
171

class ButtonClickAction implements ActionListener
172

{
173

public void actionPerformed(ActionEvent e)
174

{
175

if ("submit".equals(e.getActionCommand()))
176

{
177

String str = inputTxt.getText().trim();
178

inputTxt.setText("");
179

sendToServer(str);
180

}
181

else if ("login".equals(e.getActionCommand()))
182

{
183

connect();
184

}
185

}
186

}
187

188

/**
189

* enter be inputted event
190

*
191

* @author hx0272
192

*/
193

class EnterClickAction implements ActionListener
194

{
195

public void actionPerformed(ActionEvent e)
196

{
197

String str = inputTxt.getText().trim();
198

inputTxt.setText("");
199

sendToServer(str);
200

}
201

}
202

203

/**
204

* send message to server
205

*
206

* @author hx0272
207

*/
208

private void sendToServer(String str)
209

{
210

try
211

{
212

dos.writeUTF(name + ":" + str);
213

dos.flush();
214

}
215

catch(IOException e)
216

{
217

e.printStackTrace();
218

}
219

}
220

221

/**
222

* close resource
223

*
224

* @author hx0272
225

*/
226

private void disConnect()
227

{
228

try
229

{
230

// clientSocket.close();
231

//
232

// dos.close();
233

234

bConnect = false;
235

}
236

catch(Exception e)
237

{
238

e.printStackTrace();
239

}
240

}
241

242

/**
243

* receive message from server
244

*
245

* @author hx0272
246

*/
247

private class Receive implements Runnable
248

{
249

public void run()
250

{
251

try
252

{
253

while(bConnect)
254

{
255

String str = dis.readUTF();
256

showArea.setText(showArea.getText() + str + '\n');
257

}
258

}
259

catch(IOException e)
260

{
261

javax.swing.JOptionPane.showMessageDialog(null, "connect server error");
262

}
263

264

}
265

}
266

267

/**
268

* connection begin
269

*
270

* @author hx0272
271

*/
272

private void connect()
273

{
274

try
275

{
276

if (ipTxt.getText().matches("\\d{1,3}.\\d{1,3}.\\d{1,3}.\\d{1,3}") && portTxt.getText().matches("\\d+"))
277

{
278

clientSocket = new Socket(ipTxt.getText(), Integer.parseInt(portTxt.getText()));
279

dos = new DataOutputStream(clientSocket.getOutputStream());
280

dis = new DataInputStream(clientSocket.getInputStream());
281

bConnect = true;
282

new Thread(new Receive()).start();
283

System.out.println("I am coming");
284

javax.swing.JOptionPane.showMessageDialog(null, "connect server success");
285

submitBtn.setEnabled(true);
286

inputTxt.addActionListener(new EnterClickAction());
287

}
288

else
289

{
290

javax.swing.JOptionPane.showMessageDialog(null, "port or ip be inputted is illegal");
291

}
292

}
293

catch(UnknownHostException uhe)
294

{
295

javax.swing.JOptionPane.showMessageDialog(null, "connect server error");
296

}
297

catch(IOException e)
298

{
299

javax.swing.JOptionPane.showMessageDialog(null, "connect server error");
300

}
301

}
302

}
303

使用說明：
1.先運行服務器端程序，設定好端口號
2.點擊Start按鈕，運行服務器
3.運行客戶端程序
4.設定好昵稱
5.設定與服務器端匹配的端口號和服務器的ip地址
6.點擊Login按鈕，登錄到聊天系統
7.可以聊天了。

----2008年11月24日

posted on 2010-09-01 10:40 李明閱讀(880) 評論(0) 編輯收藏所屬分類: J2SE 、Java

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