哪位兄弟能给个用java写的推技术聊天室的例子，客户端不用applet的

Question

you could google jive
that is the forum writen using java

Answer 1

maybe could help you as sample althought not chatroom

Answer 2

// Set up a Server that will receive packets from a
// client and send packets to a client.// Java core packages
import java.io.*;
import java.net.*;
import java.awt.*;
import java.awt.event.*;// Java extension packages
import javax.swing.*;public class Server extends JFrame {
   private JTextArea displayArea;
   private DatagramPacket sendPacket, receivePacket;
   private DatagramSocket socket;   // set up GUI and DatagramSocket
   public Server()
   {
      super( "Server" );      displayArea = new JTextArea();
      getContentPane().add( new JScrollPane( displayArea ),
         BorderLayout.CENTER );
      setSize( 400, 300 );
      setVisible( true );      // create DatagramSocket for sending and receiving packets
      try {
         socket = new DatagramSocket( 5000 );
      }      // process problems creating DatagramSocket
      catch( SocketException socketException ) {
         socketException.printStackTrace();
         System.exit( 1 );
      }   }  // end Server constructor   // wait for packets to arrive, then display data and echo
   // packet to client
   public void waitForPackets()
   {
      // loop forever
      while ( true ) {         // receive packet, display contents, echo to client
         try {            // set up packet
            byte data[] = new byte[ 100 ];
            receivePacket =
               new DatagramPacket( data, data.length );            // wait for packet
            socket.receive( receivePacket );
 
            // process packet
            displayPacket();            // echo information from packet back to client
            sendPacketToClient();
         }         // process problems manipulating packet
         catch( IOException ioException ) {
            displayArea.append( ioException.toString() + "\n" );
            ioException.printStackTrace();
         }      }  // end while   }  // end method waitForPackets   // display packet contents
   private void displayPacket()
   {
      displayArea.append( "\nPacket received:" +
         "\nFrom host: " + receivePacket.getAddress() +
         "\nHost port: " + receivePacket.getPort() +
         "\nLength: " + receivePacket.getLength() +
         "\nContaining:\n\t" +
         new String( receivePacket.getData(), 0,
            receivePacket.getLength() ) );
   }   // echo packet to client
   private void sendPacketToClient() throws IOException
   {
      displayArea.append( "\n\nEcho data to client..." );      // create packet to send
      sendPacket = new DatagramPacket( receivePacket.getData(),
         receivePacket.getLength(), receivePacket.getAddress(),
         receivePacket.getPort() );      // send packet
      socket.send( sendPacket );      displayArea.append( "Packet sent\n" );
      displayArea.setCaretPosition( 
         displayArea.getText().length() );
   }   // execute application
   public static void main( String args[] )
   {
      Server application = new Server();      application.setDefaultCloseOperation(
         JFrame.EXIT_ON_CLOSE );      application.waitForPackets();
   }}  // end class Server

Answer 3

// Fig. 17.7: Client.java
// Set up a Client that will send packets to a
// server and receive packets from a server.// Java core packages
import java.io.*;
import java.net.*;
import java.awt.*;
import java.awt.event.*;// Java extension packages
import javax.swing.*;public class Client extends JFrame {
   private JTextField enterField;
   private JTextArea displayArea;
   private DatagramPacket sendPacket, receivePacket;
   private DatagramSocket socket;   // set up GUI and DatagramSocket
   public Client()
   {
      super( "Client" );      Container container = getContentPane();      enterField = new JTextField( "Type message here" );      enterField.addActionListener(         new ActionListener() {            // create and send a packet
            public void actionPerformed( ActionEvent event )
            {
               // create and send packet
               try {
                  displayArea.append( 
                     "\nSending packet containing: " +
                     event.getActionCommand() + "\n" );                  // get message from textfield and convert to 
                  // array of bytes
                  String message = event.getActionCommand();
                  byte data[] = message.getBytes();
         
                  // create sendPacket
                  sendPacket = new DatagramPacket( 
                     data, data.length,
                     InetAddress.getLocalHost(), 5000 );                  // send packet
                  socket.send( sendPacket );                  displayArea.append( "Packet sent\n" );
                  displayArea.setCaretPosition(
                     displayArea.getText().length() );
               }               // process problems creating or sending packet
               catch ( IOException ioException ) {
                  displayArea.append( 
                     ioException.toString() + "\n" );
                  ioException.printStackTrace();
               }            }  // end actionPerformed         }  // end anonymous inner class      ); // end call to addActionListener      container.add( enterField, BorderLayout.NORTH );      displayArea = new JTextArea();
      container.add( new JScrollPane( displayArea ),
         BorderLayout.CENTER );      setSize( 400, 300 );
      setVisible( true );      // create DatagramSocket for sending and receiving packets
      try {
         socket = new DatagramSocket();
      }      // catch problems creating DatagramSocket
      catch( SocketException socketException ) {
         socketException.printStackTrace();
         System.exit( 1 );
      }   }  // end Client constructor   // wait for packets to arrive from Server, 
   // then display packet contents
   public void waitForPackets()
   {
      // loop forever
      while ( true ) {         // receive packet and display contents
         try {            // set up packet
            byte data[] = new byte[ 100 ];
            receivePacket = 
               new DatagramPacket( data, data.length );            // wait for packet
            socket.receive( receivePacket );
 
            // display packet contents
            displayPacket();
         }
 
         // process problems receiving or displaying packet
         catch( IOException exception ) {
            displayArea.append( exception.toString() + "\n" );
            exception.printStackTrace();
         }      }  // end while   }  // end method waitForPackets   // display contents of receivePacket
   private void displayPacket()
   {
      displayArea.append( "\nPacket received:" +
         "\nFrom host: " + receivePacket.getAddress() +
         "\nHost port: " + receivePacket.getPort() +
         "\nLength: " + receivePacket.getLength() +
         "\nContaining:\n\t" +
         new String( receivePacket.getData(), 0,
            receivePacket.getLength() ) );      displayArea.setCaretPosition(
         displayArea.getText().length() );
   }   // execute application
   public static void main( String args[] )
   {
      Client application = new Client();      application.setDefaultCloseOperation( 
         JFrame.EXIT_ON_CLOSE );      application.waitForPackets();
   }}  // end class Client

Answer 4

http://www.900-ibm.com上有现成的例子,JAVA版的OICQ

Answer 5

大家没明白我的意思哦，实际上就是irc聊天室，客户端只用ie，不下载控件，服务器端一个irc服务器，这个irc服务器有没有java写的呢，有例子么，多谢多谢

Answer 6

我写的所谓“推”聊天室依靠的不是服务器端，而是客户端的xmlhttp

Answer 7

兄台能把你的xmlhttp的给我看看么：），讲讲原理也行啊

Answer 8

xmlhttp依赖于MS的msxml客户端插件，所以通常都只在IE上使用，而且要在5.0以上版本