clock_server.java

用java写的时钟小程序

/*
 * Clock_Server.java
 *
 * Created on 2007年10月31日, 下午8:20
 */

package clock;

import java.net.MalformedURLException;
import java.rmi.Naming;
import java.rmi.RMISecurityManager;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.util.Calendar;

/**
 *
 * @author  xiaohai
 */
public class Clock_Server extends javax.swing.JFrame {
    
    /**
     * Creates new form Clock_Server
     */
    public Clock_Server() {
        initComponents();
        InnerThread th = new InnerThread();
        th.setPriority(Thread.MIN_PRIORITY);
        th.start();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jTextField1 = new javax.swing.JTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jTextField1.setText("jTextField1");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(65, 65, 65)
                .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 255, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(80, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(110, 110, 110)
                .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 58, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(132, Short.MAX_VALUE))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Clock_Server().setVisible(true);
            }
        });
        
        System.setSecurityManager(new RMISecurityManager());
        try {
            Clock_Timer c1=new Clock_Timer();
            LocateRegistry.createRegistry(1099);
            Naming.rebind("ClockTimer",c1);
            c1.Tick();
        } catch (MalformedURLException ex) {
            ex.printStackTrace();
        } catch (RemoteException ex) {
            ex.printStackTrace();
        }
        
    }
    
    private class InnerThread extends Thread{
        public void run(){
            c1 = Calendar.getInstance();
            while(true) {
                c1.setTimeInMillis(System.currentTimeMillis());
                jTextField1.setText(c1.getTime().toString());
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JTextField jTextField1;
    // 变量声明结束//GEN-END:variables
    private static Calendar c1=null;
}