mj.java

实现简单新闻管理功能

import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;

public class mj extends Frame
{
    Button clientBtn, serverBtn;
    TextArea sm;
    TextField tfaddress, tfport, tftype;
    int port;
    clientmj client;  
    servermj server; 
    boolean iamserver;
    static mj frm;

    public mj()
    {
        clientBtn = new Button("客户端");
        serverBtn = new Button("服务器端");
        sm = new TextArea("", 10, 50, TextArea.SCROLLBARS_BOTH);     
        tfaddress = new TextField("<INPUT IP>"); 
        tfport = new TextField("<PORT>"); 
        tftype = new TextField(50);   

        tftype.addKeyListener(new TFListener());
        sm.setEditable(false);

        setLayout(new FlowLayout());  
        add(tfaddress);
        add(tfport);
        add(clientBtn);
        add(serverBtn);
        add(sm); 
        add(tftype);
        setSize(500, 300);
        setTitle("mj");

        clientBtn.addActionListener(
            new ActionListener() {
                public void actionPerformed(ActionEvent e) {

                    port = Integer.parseInt(tfport.getText());

                    client = new clientmj(tfaddress.getText(), port, frm);

                    client.start();

                    tfaddress.setEnabled(false);
                    tfport.setEnabled(false);
                    serverBtn.setEnabled(false);
                    clientBtn.setEnabled(false);
                }
            }
        );


        serverBtn.addActionListener(
            new ActionListener() { 
                public void actionPerformed(ActionEvent q) {

                    port = Integer.parseInt(tfport.getText());

                    server = new servermj(port, frm);

                    server.start();

                    iamserver = true;
                    tfaddress.setText("BE SEVER");

                    tfaddress.setEnabled(false);
                    tfport.setEnabled(false);
                    serverBtn.setEnabled(false);
                    clientBtn.setEnabled(false);
                }
            }
        );

        addWindowListener( 
            new WindowAdapter() {
                public void windowClosing(WindowEvent q) {
                    System.exit(0);
                }
            }
        );
        show();
    }

    public static void main(String args[])
    {
        frm = new mj();
    }


    private class TFListener implements KeyListener
    {
        public void keyPressed(KeyEvent q)
        {

            if(q.getKeyCode() == KeyEvent.VK_ENTER)
            {

                sm.append(">" + tftype.getText() + "\n");

                if(iamserver)
                    server.dataout(tftype.getText());
                else
                    client.dataout(tftype.getText());

                tftype.setText("");
            }
        }

        public void keyTyped(KeyEvent q) {}

        public void keyReleased(KeyEvent q) {}
    }
}