java Date

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package dateformat;
 import java.util.*;
 /**
 * Title: 日期转换函数
 * Description: 有以下功能方法可以使用
 * function 1:dateintstr(StrDate) :把字符串转为日期并初始化各部份
 * StrDate:日期格式的字符串.
 * function 2:dateint() : 初始化当前日期的各部份
 * function 3:getnoncetime() : 取当前系统时间并精确到毫秒
 * function 4:getymd() :取当前系统时间的年月日
 * function 5:getTime() :取出当前系统的时分秒
 * function 6:getFormatDate(Format) :格式化当前系统时间
 * Format：支持以下格式:
 * yyyy-MM-dd格式:年月日
 *
 * yyyy/MM/dd格式:年月日
 *
 * yyyyMMdd格式:年月日
 *
 * yyyy.mm.dd格式:年月日
 *
 * yyyy-MM格式:年月
 *
 * yyyy/mm格式:年月
 *
 * yyyymm格式:年月
 *
 * yyyy.mm格式:年月
 *
 * mm-dd格式:月日
 *
 * mm/dd格式:月日
 *
 * mmdd格式:月日
 *
 * mm.dd格式:月日
 *
 * yyyymmddhhmiss格式:当前年月日时分秒
 *
 * yyyy-mm-dd hh:mi:ss格式:当前年月日时分秒
 *
 * yyyy/mm/dd hh:mi:ss格式:当前年月日时分秒
 *
 * yyyy.mm.dd hh:mi:ss格式:当前年月日时分秒
 *
 * hh:mi:ss格式:当前时分秒
 *
 * yyyy格式:当前年份
 *
 * mm格式:当前月份
 *
 * dd格式:当月的当前的哪一天.
 * function 7:getFormatDateS(Format,StrDate) :格式化当前系统时间
 * Format ：支持以下格式:以上；
 * StrDate:日期字符串。
 * Copyright: Copyright (c) 2005
 * Company: 
 * @author not attributable
 * @version 1.0
 * 作者：WRL
 */
 public class mygetdate {
 int yyyy = 0;
 int mm = 0;
 int dd = 0;
 int hh = 0;
 int mi = 0;
 int ss = 0;
 int ms = 0;
 String Smm = "", Sdd = "", Shh = "", Smi = "", Sss = "";
 String sNowTime = "";
 public mygetdate() {
 }
 //*** Date Tdate =new Date("2005/06/7");
 //***--------------------初始化字符串转为日期----------------------
 private void dateintStr(String StrDate) {
 StrDate = StrDate.replace('-','/');
 StrDate = StrDate.replace('.','/');
 Date Tdate = new Date(StrDate);
 Calendar NowTime = Calendar.getInstance();
 NowTime.setTime(Tdate);
 yyyy = NowTime.get(NowTime.YEAR);
 mm = NowTime.get(NowTime.MONTH) + 1;
 dd = NowTime.get(NowTime.DAY_OF_MONTH);
 hh = NowTime.get(NowTime.HOUR_OF_DAY);
 mi = NowTime.get(NowTime.MINUTE);
 ss = NowTime.get(NowTime.SECOND);
 ms = NowTime.get(NowTime.MILLISECOND);
 Smm = (mm < 10) ? "0" + mm : String.valueOf(mm);
 Sdd = (dd < 10) ? "0" + dd : String.valueOf(dd);
 Shh = (hh < 10) ? "0" + hh : String.valueOf(hh);
 Smi = (mi < 10) ? "0" + mi : String.valueOf(mi);
 Sss = (ss < 10) ? "0" + ss : String.valueOf(ss);
 }
 //***--------------------初始化当前时间-----------------------
 private void dateint() {
 Calendar NowTime = Calendar.getInstance();
 yyyy = NowTime.get(NowTime.YEAR);
 mm = NowTime.get(NowTime.MONTH) + 1;
 dd = NowTime.get(NowTime.DAY_OF_MONTH);
 hh = NowTime.get(NowTime.HOUR_OF_DAY);
 mi = NowTime.get(NowTime.MINUTE);
 ss = NowTime.get(NowTime.SECOND);
 ms = NowTime.get(NowTime.MILLISECOND);
 Smm = (mm < 10) ? "0" + mm : String.valueOf(mm);
 Sdd = (dd < 10) ? "0" + dd : String.valueOf(dd);
 Shh = (hh < 10) ? "0" + hh : String.valueOf(hh);
 Smi = (mi < 10) ? "0" + mi : String.valueOf(mi);
 Sss = (ss < 10) ? "0" + ss : String.valueOf(ss);
 }
 //***-----------------取出当前时间---------------------------
 public String getnoncetime() {
 dateint(); //初始化时间控件.
 sNowTime = yyyy + "-" + Smm + "-" + Sdd + " " + Shh + ":" + Smi + ":" +
 Sss +
 "." + ms;
 return sNowTime;
 }
 //***--------------------取出当前时间的年月日------------------
 public String getymd() {
 dateint(); //初始化时间控件.
 sNowTime = yyyy + "-" + Smm + "-" + Sdd;
 return sNowTime;
 }
 //***--------------------取出当前几点几分几秒-------------------
 public String getTime() {
 dateint(); //初始化时间控件.
 sNowTime = Shh + ":" + Smi + ":" + Sss;
 return sNowTime;
 }
 //***按格式返回当前时间的任意部份--------------------------------
 public String getFormatDate(String Format) {
 dateint(); //初始化时间控件.
 Format = Format.trim().toLowerCase();
 //******年月日格式----------------------------------------------
 if (Format.equals("yyyy-mm-dd")) {
 //yyyy-MM-dd格式.
 return yyyy + "-" + Smm + "-" + Sdd;
 }
 if (Format.equals("yyyy/mm/dd")) {
 //yyyy/MM/dd格式.
 return yyyy + "/" + Smm + "/" + Sdd;
 }
 if (Format.equals("yyyymmdd")) {
 //yyyyMMdd格式.
 return yyyy + Smm + Sdd;
 }
 if (Format.equals("yyyy.mm.dd")) {
 //yyyy.mm.dd格式.
 return yyyy + "." + Smm + "." + Sdd;
 }
 //******年月格式----------------------------------------------
 if (Format.equals("yyyy-mm")) {
 //yyyy-MM格式.
 return yyyy + "-" + Smm;
 }
 if (Format.equals("yyyy/mm")) {
 //yyyy/mm格式.
 return yyyy + "/" + Smm;
 }
 if (Format.equals("yyyymm")) {
 //yyyymm格式.
 return yyyy + Smm;
 }
 if (Format.equals("yyyy.mm")) {
 //yyyy.mm格式.
 return yyyy + "." + Smm;
 }
 //******月日格式----------------------------------------------
 if (Format.equals("mm-dd")) {
 //mm-dd格式.
 return Smm + "-" + Sdd;
 }
 if (Format.equals("mm/dd")) {
 //mm/dd格式.
 return Smm + "/" + Sdd;
 }
 if (Format.equals("mmdd")) {
 //mmdd格式.
 return Smm + Sdd;
 }
 if (Format.equals("mm.dd")) {
 //mm.dd格式.
 return Smm + "." + Sdd;
 }
 //******年月日时分秒格式-------------------------------------------
 if (Format.equals("yyyymmddhhmiss")) {
 //yyyymmddhhmiss格式.
 return yyyy + Smm + Sdd + Shh + Smi + Sss;
 }
 if (Format.equals("yyyy-mm-dd hh:mi:ss")) {
 //yyyy-mm-dd hh:mi:ss格式.
 return yyyy + "-" + Smm + "-" + Sdd + " " + Shh + ":" + Smi + ":" + Sss;
 }
 if (Format.equals("yyyy/mm/dd hh:mi:ss")) {
 //yyyy/mm/dd hh:mi:ss格式.
 return yyyy + "/" + Smm + "/" + Sdd + " " + Shh + ":" + Smi + ":" + Sss;
 }
 if (Format.equals("yyyy.mm.dd hh:mi:ss")) {
 //yyyy.mm.dd hh:mi:ss格式.
 return yyyy + "." + Smm + "." + Sdd + " " + Shh + ":" + Smi + ":" + Sss;
 }
 //******时分秒格式----------------------------------------------
 if (Format.equals("hh:mi:ss")) {
 //hh:mi:ss格式.
 return Shh + ":" + Smi + ":" + Sss;
 }
 //*****单独取年或月或日格式----------------------------------------------
 if (Format.equals("yyyy")) {
 //yyyy格式.
 return String.valueOf(yyyy);
 }
 if (Format.equals("mm")) {
 //mm格式.
 return String.valueOf(Smm);
 }
 if (Format.equals("dd")) {
 //dd格式.
 return String.valueOf(Sdd);
 }
 return "你的格式不对!";
 }
 //***将字符串日期按格式返回任意部份--------------------------------
 public String getFormatDateS(String Format, String StrDate) {
 dateintStr(StrDate); //初始化时间控件.
 Format = Format.trim().toLowerCase();
 //******年月日格式----------------------------------------------
 if (Format.equals("yyyy-mm-dd")) {
 //yyyy-MM-dd格式.
 return yyyy + "-" + Smm + "-" + Sdd;
 }
 if (Format.equals("yyyy/mm/dd")) {
 //yyyy/MM/dd格式.
 return yyyy + "/" + Smm + "/" + Sdd;
 }
 if (Format.equals("yyyymmdd")) {
 //yyyyMMdd格式.
 return yyyy + Smm + Sdd;
 }
 if (Format.equals("yyyy.mm.dd")) {
 //yyyy.mm.dd格式.
 return yyyy + "." + Smm + "." + Sdd;
 }
 //******年月格式----------------------------------------------
 if (Format.equals("yyyy-mm")) {
 //yyyy-MM格式.
 return yyyy + "-" + Smm;
 }
 if (Format.equals("yyyy/mm")) {
 //yyyy/mm格式.
 return yyyy + "/" + Smm;
 }
 if (Format.equals("yyyymm")) {
 //yyyymm格式.
 return yyyy + Smm;
 }
 if (Format.equals("yyyy.mm")) {
 //yyyy.mm格式.
 return yyyy + "." + Smm;
 }
 //******月日格式----------------------------------------------
 if (Format.equals("mm-dd")) {
 //mm-dd格式.
 return Smm + "-" + Sdd;
 }
 if (Format.equals("mm/dd")) {
 //mm/dd格式.
 return Smm + "/" + Sdd;
 }
 if (Format.equals("mmdd")) {
 //mmdd格式.
 return Smm + Sdd;
 }
 if (Format.equals("mm.dd")) {
 //mm.dd格式.
 return Smm + "." + Sdd;
 }
 //******年月日时分秒格式-------------------------------------------
 if (Format.equals("yyyymmddhhmiss")) {
 //yyyymmddhhmiss格式.
 return yyyy + Smm + Sdd + Shh + Smi + Sss;
 }
 if (Format.equals("yyyy-mm-dd hh:mi:ss")) {
 //yyyy-mm-dd hh:mi:ss格式.
 return yyyy + "-" + Smm + "-" + Sdd + " " + Shh + ":" + Smi + ":" + Sss;
 }
 if (Format.equals("yyyy/mm/dd hh:mi:ss")) {
 //yyyy/mm/dd hh:mi:ss格式.
 return yyyy + "/" + Smm + "/" + Sdd + " " + Shh + ":" + Smi + ":" + Sss;
 }
 if (Format.equals("yyyy.mm.dd hh:mi:ss")) {
 //yyyy.mm.dd hh:mi:ss格式.
 return yyyy + "." + Smm + "." + Sdd + " " + Shh + ":" + Smi + ":" + Sss;
 }
 //******时分秒格式----------------------------------------------
 if (Format.equals("hh:mi:ss")) {
 //hh:mi:ss格式.
 return Shh + ":" + Smi + ":" + Sss;
 }
 //*****单独取年或月或日格式----------------------------------------------
 if (Format.equals("yyyy")) {
 //yyyy格式.
 return String.valueOf(yyyy);
 }
 if (Format.equals("mm")) {
 //mm格式.
 return String.valueOf(Smm);
 }
 if (Format.equals("dd")) {
 //mm格式.
 return String.valueOf(Sdd);
 }
 return "你的格式不对!";
 }
 public static void main(String[] args) {
 mygetdate mygetdate1 = new mygetdate();
 }
 }
 ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝demo=======================
 package dateformat;
 import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*;
 import java.util.Date;
 import dateformat.mygetdate;
 /**
 * Title: 
 * Description: 
 * Copyright: Copyright (c) 2005
 * Company: 
 * @author not attributable
 * @version 1.0
 */
 public class DateForm
 extends JFrame {
 JPanel contentPane;
 JMenuBar jMenuBar1 = new JMenuBar();
 JMenu jMenuFile = new JMenu();
 JMenuItem jMenuFileExit = new JMenuItem();
 JMenu jMenuHelp = new JMenu();
 JMenuItem jMenuHelpAbout = new JMenuItem();
 JToolBar jToolBar = new JToolBar();
 JButton jButton1 = new JButton();
 JButton jButton2 = new JButton();
 JButton jButton3 = new JButton();
 ImageIcon image1;
 ImageIcon image2;
 ImageIcon image3;
 JFormattedTextField FormDate = new JFormattedTextField();
 JButton jButton4 = new JButton();
 JButton jButton5 = new JButton();
 JTextField Format = new JTextField();
 JTextField Tresult = new JTextField();
 JLabel jLabel1 = new JLabel();
 JLabel jLabel2 = new JLabel();
 JButton jButton6 = new JButton();
 JButton jButton7 = new JButton();
 JButton testbtn = new JButton();
 JTextField JDateStr = new JTextField();
 JLabel jLabel3 = new JLabel();
 //Construct the frame
 public DateForm() {
 enableEvents(AWTEvent.WINDOW_EVENT_MASK);
 try {
 jbInit();
 }
 catch (Exception e) {
 e.printStackTrace();
 }
 }
 //Component initialization
 private void jbInit() throws Exception {
 image1 = new ImageIcon(dateformat.DateForm.class.getResource("openFile.png"));
 image2 = new ImageIcon(dateformat.DateForm.class.getResource(
 "closeFile.png"));
 image3 = new ImageIcon(dateformat.DateForm.class.getResource("help.png"));
 contentPane = (JPanel)this.getContentPane();
 contentPane.setLayout(null);
 this.setSize(new Dimension(400, 300));
 this.setTitle("Frame Title");
 jMenuFile.setText("File");
 jMenuFileExit.setText("Exit");
 jMenuFileExit.addActionListener(new DateForm_jMenuFileExit_ActionAdapter(this));
 jMenuHelp.setText("Help");
 jMenuHelpAbout.setText("About");
 jMenuHelpAbout.addActionListener(new DateForm_jMenuHelpAbout_ActionAdapter(this));
 jButton1.setIcon(image1);
 jButton1.setToolTipText("Open File");
 jButton2.setIcon(image2);
 jButton2.setToolTipText("Close File");
 jButton3.setIcon(image3);
 jButton3.setToolTipText("Help");
 jToolBar.setBounds(new Rectangle(0, 0, 400, 29));
 FormDate.setText("");
 FormDate.setBounds(new Rectangle(11, 50, 117, 24));
 jButton4.setBounds(new Rectangle(23, 201, 83, 26));
 jButton4.setText("取出时间");
 jButton4.addActionListener(new DateForm_jButton4_actionAdapter(this));
 jButton5.setBounds(new Rectangle(121, 202, 93, 24));
 jButton5.setText("取当前时间");
 jButton5.addActionListener(new DateForm_jButton5_actionAdapter(this));
 Format.setText("");
 Format.setBounds(new Rectangle(200, 50, 144, 25));
 Tresult.setText("");
 Tresult.setBounds(new Rectangle(201, 115, 143, 23));
 jLabel1.setText("日期格式");
 jLabel1.setBounds(new Rectangle(140, 53, 60, 25));
 jLabel2.setText("返回结果");
 jLabel2.setBounds(new Rectangle(139, 117, 60, 23));
 jButton6.setBounds(new Rectangle(245, 201, 77, 23));
 jButton6.setText("确定");
 jButton6.addActionListener(new DateForm_jButton6_actionAdapter(this));
 testbtn.setBounds(new Rectangle(29, 163, 108, 21));
 testbtn.setText("字符转为日期");
 testbtn.addActionListener(new DateForm_testbtn_actionAdapter(this));
 testbtn.setBounds(new Rectangle(30, 163, 267, 25));
 testbtn.setText("字符串转日期");
 JDateStr.setText("");
 JDateStr.setBounds(new Rectangle(199, 84, 147, 23));
 jLabel3.setText("要转换的日期");
 jLabel3.setBounds(new Rectangle(119, 83, 78, 24));
 jToolBar.add(jButton1);
 jToolBar.add(jButton2);
 jToolBar.add(jButton3);
 contentPane.add(Tresult, null);
 contentPane.add(jLabel2, null);
 contentPane.add(JDateStr, null);
 contentPane.add(testbtn, null);
 contentPane.add(testbtn, null);
 contentPane.add(Format, null);
 contentPane.add(jLabel1, null);
 contentPane.add(jButton6, null);
 contentPane.add(jButton5, null);
 contentPane.add(jButton4, null);
 contentPane.add(FormDate, null);
 jMenuFile.add(jMenuFileExit);
 jMenuHelp.add(jMenuHelpAbout);
 jMenuBar1.add(jMenuFile);
 jMenuBar1.add(jMenuHelp);
 this.setJMenuBar(jMenuBar1);
 contentPane.add(jToolBar, null);
 contentPane.add(jLabel3, null);
 }
 //File | Exit action performed
 public void jMenuFileExit_actionPerformed(ActionEvent e) {
 System.exit(0);
 }
 //Help | About action performed
 public void jMenuHelpAbout_actionPerformed(ActionEvent e) {
 }
 //Overridden so we can exit when window is closed
 protected void processWindowEvent(WindowEvent e) {
 super.processWindowEvent(e);
 if (e.getID() == WindowEvent.WINDOW_CLOSING) {
 jMenuFileExit_actionPerformed(null);
 }
 }
 void jButton4_actionPerformed(ActionEvent e) {
 Date nowTime = new Date();
 int yyyy = 1900+nowTime.getYear();
 int mm = nowTime.getMonth()+1;
 int dd = nowTime.getDate();
 int hh = nowTime.getHours();
 int mi=nowTime.getMinutes();
 int ss=nowTime.getSeconds();
 String snowTime=yyyy+"-"+mm+"-"+dd+" "+hh+":"+mi+":"+ss;
 FormDate.setText(snowTime);
 }
 void jButton5_actionPerformed(ActionEvent e) {
 mygetdate noncetime=new mygetdate();
 FormDate.setText(noncetime.getnoncetime());
 }
 void jButton6_actionPerformed(ActionEvent e) {
 mygetdate noncetime=new mygetdate();
 String Formatstr=noncetime.getFormatDate(Format.getText());
 Tresult.setText(Formatstr);
 }
 void testbtn_actionPerformed(ActionEvent e) {
 Date Tdate =new Date("2005/06/7 01:02:03");
 testbtn.setText(Tdate.toString()+"ss");
 mygetdate noncetime=new mygetdate();
 String Formatstr=noncetime.getFormatDateS(Format.getText(),JDateStr.getText());
 Tresult.setText(Formatstr);
 }
 }
 class DateForm_jMenuFileExit_ActionAdapter
 implements ActionListener {
 DateForm adaptee;
 DateForm_jMenuFileExit_ActionAdapter(DateForm adaptee) {
 this.adaptee = adaptee;
 }
 public void actionPerformed(ActionEvent e) {
 adaptee.jMenuFileExit_actionPerformed(e);
 }
 }
 class DateForm_jMenuHelpAbout_ActionAdapter
 implements ActionListener {
 DateForm adaptee;
 DateForm_jMenuHelpAbout_ActionAdapter(DateForm adaptee) {
 this.adaptee = adaptee;
 }
 public void actionPerformed(ActionEvent e) {
 adaptee.jMenuHelpAbout_actionPerformed(e);
 }
 }
 class DateForm_jButton4_actionAdapter
 implements java.awt.event.ActionListener {
 DateForm adaptee;
 DateForm_jButton4_actionAdapter(DateForm adaptee) {
 this.adaptee = adaptee;
 }
 public void actionPerformed(ActionEvent e) {
 adaptee.jButton4_actionPerformed(e);
 }
 }
 class DateForm_jButton5_actionAdapter implements java.awt.event.ActionListener {
 DateForm adaptee;
 DateForm_jButton5_actionAdapter(DateForm adaptee) {
 this.adaptee = adaptee;
 }
 public void actionPerformed(ActionEvent e) {
 adaptee.jButton5_actionPerformed(e);
 }
 }
 class DateForm_jButton6_actionAdapter implements java.awt.event.ActionListener {
 DateForm adaptee;
 DateForm_jButton6_actionAdapter(DateForm adaptee) {
 this.adaptee = adaptee;
 }
 public void actionPerformed(ActionEvent e) {
 adaptee.jButton6_actionPerformed(e);
 }
 }
 class DateForm_testbtn_actionAdapter implements java.awt.event.ActionListener {
 DateForm adaptee;
 DateForm_testbtn_actionAdapter(DateForm adaptee) {
 this.adaptee = adaptee;
 }
 public void actionPerformed(ActionEvent e) {
 adaptee.testbtn_actionPerformed(e);
 }
 }