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點對點聊天簡陋版

CharServer.java

import?java.net.*;

import?java.util.*;

import?java.io.*;

public?class?ChatServer

{

????ServerSocket?server?=?null;

????ArrayList<ClientConn>?clients?=?new?ArrayList<ClientConn>();

????

????public?ChatServer(int?port)?throws?Exception

????{

????????server?=?new?ServerSocket(port);

????}

????

????public?void?startServer()?throws?Exception

????{

????????while(true)

????????{

????????????Socket?s?=?server.accept();

????????????clients.add(?new?ClientConn(s)?);

????????}

????}

????

????class?ClientConn?implements?Runnable

????{

????????Socket?s?=?null;

????????public?ClientConn(Socket?s)

????????{

????????????this.s?=?s;

????????????(new?Thread(this)).start();

????????}

????????

????????public?void?send(String?str)?throws?IOException

????????{

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

????????????dos.writeUTF(str);

????????}

????????

????????public?void?run()

????????{

????????????try?{

????????????????

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

????????????????String?str?=?dis.readUTF();

????????????????while(str?!=?null?&&?str.length()?!=0)

????????????????{

????????????????????System.out.println(str);

????????????????????for(Iterator<ClientConn>?it?=?clients.iterator();?it.hasNext();?)

????????????????????{

????????????????????????ClientConn?cc?=?(ClientConn)it.next();

????????????????????????if(this?!=?cc)????

????????????????????????{

????????????????????????????cc.send(str);

????????????????????????}

????????????????????}

????????????????????str?=?dis.readUTF();

????????????????}

????????????????s.close();

????????????????clients.remove(this);

????????????}?

????????????catch?(IOException?e)?

????????????{

????????????????System.out.println("client?quit");

????????????????try?

????????????????{

????????????????????if(s?!=?null)

????????????????????????s.close();

????????????????????clients.remove(this);

????????????????}?

????????????????catch?(IOException?ioe)

????????????????{

????????????????????ioe.printStackTrace();

????????????????}

????????????}

????????????

????????}

????}

????

????public?static?void?main(String[]?args)?throws?Exception

????{

????????ChatServer?cs?=?new?ChatServer(6666);?//實例化一個服務器

????????cs.startServer();????//啟動服務器

????}

}

ChatClient.java

import?java.io.*;

import?java.net.*;

import?java.awt.*;

import?java.awt.event.*;

public?class?ChatClient?extends?Frame

{

????TextArea?ta?=?new?TextArea();

????TextField?tf?=?new?TextField();

????public?void?launchFrame()?throws?Exception

????{

????????this.add(ta,?BorderLayout.CENTER);

????????this.add(tf,?BorderLayout.SOUTH);

????????tf.addActionListener(

????????????new?ActionListener()?

????????????{

????????????????public?void?actionPerformed(ActionEvent?ae)

????????????????{

????????????????????try?{

????????????????????????String?sSend?=?tf.getText();

????????????????????????if(sSend.trim().length()?==?0)?return;

????????????????????????ChatClient.this.send(sSend);

????????????????????????tf.setText("");

????????????????????????ta.append(sSend?+?"\n");

????????????????????}

????????????????????catch?(Exception?e)?{?e.printStackTrace();?}

????????????????}

????????????}

????????????);

????????

????????setBounds(300,300,300,400);

????????setVisible(true);

????????tf.requestFocus();

????}

????

????Socket?s;

????public?ChatClient()?throws?Exception

????{

????????s?=?new?Socket("127.0.0.1",?6666);

????????launchFrame();

????????(new?Thread(new?ReceiveThread(s))).start();

????}

????

????public?void?send(String?str)?throws?Exception

????{

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

????????dos.writeUTF(str);

????}

????

????public?void?disconnect()?throws?Exception

????{

????????s.close();

????}

????

????public?static?void?main(String[]?args)?throws?Exception

????{

????????BufferedReader?br?=?new?BufferedReader?(

????????????????????????????????new?InputStreamReader(System.in));

????????ChatClient?cc?=?new?ChatClient();

????????String?str?=?br.readLine();

????????while(str?!=?null?&&?str.length()?!=?0)

????????{

????????????cc.send(str);

????????????str?=?br.readLine();

????????}

????????cc.disconnect();

????}

????

????class?ReceiveThread?implements?Runnable

????{

????????private?Socket?s;

????????public?ReceiveThread(Socket?s)?{

????????????this.s?=?s;

????????}

????????public?void?run()

????????{

????????????if(s?==?null)?return;

????????????try?{

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

????????????????String?str?=?dis.readUTF();

????????????????while?(str?!=?null?&&?str.length()?!=?0)

????????????????{

????????????????????ChatClient.this.ta.append(str?+?"\n");

????????????????????str?=?dis.readUTF();

????????????????}

????????????}?

????????????catch?(Exception?e)

????????????{

????????????????e.printStackTrace();

????????????}

????????????

????????}

????}

}

posted on 2008-09-15 01:30 nonels 閱讀(621) 評論(2) 編輯收藏所屬分類: J2SE


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# re: 點對點聊天簡陋版 2015-12-21 23:54 更多時候該

# re: 點對點聊天簡陋版 2015-12-21 23:55 更多時候該

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