小小的程序3之时间同步器0.1.3

重新修改了更新时间标签和更新时间的方法，使用Timer实例更新时间，并在更新时间的方法中增加了尝试重连的次数。

 

界面类：

/* * @(#)MainUI.java 0.1 2009-8-7 * Copyright 2006 DiaoxianSoft Development Team. All rights reserved. * DiaoxianSoft PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.Timer;import java.util.TimerTask;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JTextField;import easyJFC.*;import easyJFC.myUtil.*;/** * {Enter Class Description} * Copyright: Copyright (c) * Company: DiaoxianSoft development team * @author Geek_Soledad * @creation date 2009-8-7 下午10:10:40 * @version 0.1 */public class MainUI extends JFrame {private static final long serialVersionUID = 1L;private TimeSynchro timeSyn = new TimeSynchro();private final JTextField tfURL= new JTextField();private final JLabel lbTime= new JLabel("null");private final JButton btOK= new JButton("确定");private final JButton btSynchro = new JButton("同步");MainUI() {super("小Y时间同步 V0.1.3");this.setDefaultCloseOperation(EXIT_ON_CLOSE);this.setSize(400, 120);this.setResizable(false);this.setLocationRelativeTo(null);setIcon();}// 设置窗口图标private final void setIcon() {ImageIcon iconImg = null;iconImg = ImageUtil.getImageIconInJar(this, "res/icon.gif");if (iconImg != null) {this.setIconImage(iconImg.getImage());} else {this.setIconImage(new ImageIcon("res/icon.gif").getImage());}}// 创建界面public final void createUI() {this.setLayout(null);JLabel lbURL = new JLabel("当前同步的网址:");tfURL.setText(timeSyn.getUrl().toString());lbURL.setBounds(20, 15, 100, 25);tfURL.setBounds(125, 15, 175, 25);btOK.setBounds(310, 15, 60, 25);add(lbURL);add(tfURL);add(btOK);// 确定按钮的触发事件btOK.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {String url = tfURL.getText();timeSyn.setUrl(url);}});JLabel lbRightnow = new JLabel("该网站时间:");lbRightnow.setBounds(20, 55, 70, 25);lbTime.setBounds(95, 55, 205, 25);btSynchro.setBounds(310, 55, 60, 25);add(lbRightnow);add(lbTime);// 同步时间按钮add(btSynchro);btSynchro.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {timeSyn.setTime();}});if (System.getProperty("os.name").startsWith("Windows")) {JFrameOption.setLookAndFeelAsWindows(this);}setVisible(true);}/** * 更新标签时间 */public void refreshLbTime() {Timer timer = new Timer();timer.schedule(new TimerTask() {public void run() {timeSyn.refreshTime();lbTime.setText(timeSyn.getDate().toString());System.out.println(timeSyn.getDate());}}, 0, 1000);}public static void main(String[] args) {MainUI timeSynchro = new MainUI();timeSynchro.createUI();timeSynchro.refreshLbTime();}}

 

 实现功能类：

import java.io.IOException;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import java.util.Calendar;import java.util.Date;import javax.swing.JOptionPane;/* * @(#)TimeSynchro.java 0.1 2009-8-7 * Copyright 2006 DiaoxianSoft Development Team. All rights reserved. * DiaoxianSoft PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. *//** * 6月5日下午，CMOS电池被拆下来重装，电脑时间回到从前。所以写了这个时间同步的小程序。 * Copyright: Copyright (c) * Company: DiaoxianSoft development team * @author Geek_Soledad * @creation date 2009-8-7 上午01:02:11 * @version 0.1.1 */public class TimeSynchro {private byte retry = 3;// 连接失败时的重试次数private URLConnection urlCon;private URL url;private Date date;// 获取到的日期private Calendar cal = Calendar.getInstance();public TimeSynchro() {try {url = new URL("http://www.bjtime.cn");} catch (MalformedURLException e) {e.printStackTrace();} refreshTime();}public final URL getUrl() {return url;}public final void setUrl(URL url) {this.url = url;}public final void setUrl(String url) {System.out.println("setUrl");try {this.url = new URL(url);} catch (MalformedURLException e) {e.printStackTrace();try {this.url = new URL("http://www.bjtime.cn");} catch (MalformedURLException e1) {e1.printStackTrace();}}}public Date getDate() {return date;}public void setDate(Date date) {this.date = date;}/** * 更新时间 */public final void refreshTime() {try {urlCon = url.openConnection();urlCon.setConnectTimeout(1000);urlCon.connect();System.out.print("refresh..");} catch (IOException e) {if (retry > 0) {retry--;System.out.println("Trying to retry...");} else {e.printStackTrace();JOptionPane.showMessageDialog(null, "连接超时,请重新输入网址");retry = 3;}}date = new Date(urlCon.getDate());cal.setTime(date);}/** * 调用命令行设置时间 */public final void setTime() {refreshTime();try {// 判断当前操作系统并设定时间if (System.getProperty("os.name").startsWith("Windows")) {java.lang.Runtime.getRuntime().exec(String.format("cmd /c date %1$tY/%1$tm/%1$td", cal));java.lang.Runtime.getRuntime().exec(String.format("cmd /c time %1$tH:%1$tM:%1$tS", cal));} else if(System.getProperties().equals("Linux")){java.lang.Runtime.getRuntime().exec(String.format("date %1$tm%1$td%1$tH%1$tM%1$tY.%1$tS",cal));} else {System.out.println(System.getProperty("os.name"));}} catch(java.io.IOException e) {e.printStackTrace();}}}