自制简陋图形化界面聊天软件 - 黑马程序员技术交流社区

//package MyQQ;
import java.io.*;
import java.net.*;
import java.awt.*;
import java.awt.event.*;
class MyQQ
{
public static void main(String[] args)throws Exception
{
new MyWindow();
new Send(new DatagramSocket());
Thread t = new Thread(new Rece(new DatagramSocket(10000)));
t.start();
//Thread t1 = new Thread(new Send(new DatagramSocket()));
//Thread t2 = new Thread(new Rece(new DatagramSocket(10000)));
//t1.start();
//t2.start();
//System.out.println("Hello World!");
}
}
class MyWindow
{
private Frame f;
public static TextArea ta;
public static TextField tf;
private Button but;
public static String str;
public MyWindow()
{
init();
}
public void init()
{
f = new Frame("MyQQ");
f.setBounds(300,100,500,650);
f.setLayout(new FlowLayout());
ta = new TextArea(35,60);
tf = new TextField(50);
but = new Button("发送");
f.add(ta);
f.add(tf);
f.add(but);
myEvent();
f.setVisible(true);
}
private void myEvent()
{
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
but.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
Send.send();
}
});
tf.addKeyListener(new KeyAdapter()
{
public void keyPressed(KeyEvent e)
{
if (e.getKeyCode()==KeyEvent.VK_ENTER)
Send.send();
}
});
}
}
class Send implements Runnable
{
private static DatagramSocket ds;
private static String line;
public Send(DatagramSocket ds)
{
this.ds = ds;
}
public void run()
{
send();
}
public static void send()
{
try
{
line =MyWindow.tf.getText();
//while (!(line=="over"))
//{
//MyWindow.ta.append(line+"\r\n");
byte[] buf = line.getBytes();
DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getByName("192.168.0.255"),10000);
ds.send(dp);
MyWindow.tf.setText(null);
//}
//System.exit(0);
}
catch (Exception e)
{
throw new RuntimeException("发送异常");
}
}
}
class Rece implements Runnable
{
private DatagramSocket ds;
public Rece(DatagramSocket ds)
{
this.ds = ds;
}
public void run()
{
try
{
while (true)
{
byte[] buf = new byte[1024];
DatagramPacket dp = new DatagramPacket(buf,buf.length);
ds.receive(dp);
String s = new String(dp.getData(),0,dp.getLength());
MyWindow.ta.append(s+"\r\n");
System.out.println(s);
}
}
catch (Exception e)
{
throw new RuntimeException("接收异常");
}
}
}

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