import java.awt.*;
import java.awt.event.*;
import java.net.*;public class Chat
{
Frame f=new Frame("我的聊天室");
TextField tfIP=new TextField(15);
List lst=new List(6);
DatagramSocket ds;
public Chat()
{
try
{
ds=new DatagramSocket(3000);
}
catch(Exception ex){ex.printStackTrace();}
new Thread(new Runnable()
{
public void run()
{
byte buf[]=new byte[1024];
DatagramPacket dp=new DatagramPacket(buf,1024);
while(true)
{
try
{
ds.receive(dp);
lst.add(new String(buf,0,dp.getLength())+":from"+dp.getAddress().getHostAddress(),0);
}catch(Exception e){e.printStackTrace();}
}
}
}).start();
}
public static void main(String[] args)
{
Chat chat=new Chat();
chat.init();
}
public void init()
{
f.setSize(300,300);
f.add(lst);
Panel p=new Panel();
p.setLayout(new BorderLayout());
p.add("West",tfIP);
TextField tfData=new TextField(20);
p.add("East",tfData);
f.add("South",p);
f.setVisible(true);
f.setResizable(false);
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
ds.close();
f.setVisible(false);
f.dispose();
System.exit(0);
}
});
tfData.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
byte[] buf;
buf=e.getActionCommand().getBytes();
DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getByName(tfIP.getText()),3000); //这里有一个错误
try
{
ds.send(dp);
}catch(Exception ex){ex.printStackTrace();}
((TextField)e.getSource()).setText("");
}
});
} }
import java.awt.event.*;
import java.net.*;public class Chat
{
Frame f=new Frame("我的聊天室");
TextField tfIP=new TextField(15);
List lst=new List(6);
DatagramSocket ds;
public Chat()
{
try
{
ds=new DatagramSocket(3000);
}
catch(Exception ex){ex.printStackTrace();}
new Thread(new Runnable()
{
public void run()
{
byte buf[]=new byte[1024];
DatagramPacket dp=new DatagramPacket(buf,1024);
while(true)
{
try
{
ds.receive(dp);
lst.add(new String(buf,0,dp.getLength())+":from"+dp.getAddress().getHostAddress(),0);
}catch(Exception e){e.printStackTrace();}
}
}
}).start();
}
public static void main(String[] args)
{
Chat chat=new Chat();
chat.init();
}
public void init()
{
f.setSize(300,300);
f.add(lst);
Panel p=new Panel();
p.setLayout(new BorderLayout());
p.add("West",tfIP);
TextField tfData=new TextField(20);
p.add("East",tfData);
f.add("South",p);
f.setVisible(true);
f.setResizable(false);
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
ds.close();
f.setVisible(false);
f.dispose();
System.exit(0);
}
});
tfData.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
byte[] buf;
buf=e.getActionCommand().getBytes();
DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getByName(tfIP.getText()),3000); //这里有一个错误
try
{
ds.send(dp);
}catch(Exception ex){ex.printStackTrace();}
((TextField)e.getSource()).setText("");
}
});
} }
import java.awt.*;
import java.awt.event.*;
import java.net.*;public class Chat {
Frame f = new Frame("我的聊天室");
TextField tfIP = new TextField(15);
List lst = new List(6);
DatagramSocket ds; public Chat() {
try {
ds = new DatagramSocket(3000);
} catch (Exception ex) {
ex.printStackTrace();
}
new Thread(new Runnable() {
public void run() {
byte buf[] = new byte[1024];
DatagramPacket dp = new DatagramPacket(buf, 1024);
while (true) {
try {
ds.receive(dp);
lst.add(new String(buf, 0, dp.getLength()) + ":from"
+ dp.getAddress().getHostAddress(), 0);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}).start();
} public static void main(String[] args) {
Chat chat = new Chat();
chat.init();
} public void init() {
f.setSize(300, 300);
f.add(lst); Panel p = new Panel();
p.setLayout(new BorderLayout());
p.add("West", tfIP);
TextField tfData = new TextField(20);
p.add("East", tfData);
f.add("South", p);
f.setVisible(true);
f.setResizable(false); f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
ds.close();
f.setVisible(false);
f.dispose();
System.exit(0);
}
});
tfData.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
byte[] buf;
buf = e.getActionCommand().getBytes();
DatagramPacket dp;
try {
dp = new DatagramPacket(buf, buf.length,
InetAddress.getByName(tfIP.getText()), 3000);
ds.send(dp);
} catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} // 这里有一个错误
((TextField) e.getSource()).setText("");
}
}); }}