Swing日期时间选择框控件
openkk
12年前
最近做一个Swing软件，其中要用到日期时间选择器（DateChooser），但是Swing中没有现成的日期时间选择器可用，于是在网上搜索了一下，找了一个比较靠谱的例子，因为任务比较紧，所以没有时间细致地美化，自己修改了几处，增加了一些注释，增加了几个功能（如：增加了确定、取消按钮；添加了取消时JButton的Text恢复选择前的日期时间；增加了得到当前日期时间格式化器等），现在放出来，欢迎有时间的同学继续完善。
先上一张效果图
代码如下：
import java.awt.BorderLayout; import java.awt.Color; import java.awt.Cursor; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Font; import java.awt.Frame; import java.awt.GridLayout; import java.awt.Point; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JSpinner; import javax.swing.SpinnerNumberModel; import javax.swing.SwingConstants; import javax.swing.SwingUtilities; import javax.swing.border.LineBorder; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; /** * * YouAreStupid 收集网上靠谱的例子，修改后的Swing日期 * 时间选择器,因为修改时间匆忙，希望有时间的朋友继续改进。 * 例子原作者:zjw * 修改/完善：YouAreStupid */ public class DateChooserJButton extends JButton { private DateChooser dateChooser = null; private String preLabel = ""; private String originalText = null; private SimpleDateFormat sdf = null; public DateChooserJButton() { this(getNowDate()); } public DateChooserJButton(String dateString) { this(); setText(getDefaultDateFormat(), dateString); //保存原始是日期时间 initOriginalText(dateString); } public DateChooserJButton(SimpleDateFormat df, String dateString) { this(); setText(df, dateString); //记忆当前的日期格式化器 this.sdf = df; //记忆原始日期时间 Date originalDate = null; try { originalDate = df.parse(dateString); } catch (ParseException ex) { originalDate = getNowDate(); } initOriginalText(originalDate); } public DateChooserJButton(Date date) { this("", date); //记忆原始日期时间 initOriginalText(date); } public DateChooserJButton(String preLabel, Date date) { if (preLabel != null) { this.preLabel = preLabel; } setDate(date); //记忆原始是日期时间 initOriginalText(date); setBorder(null); setCursor(new Cursor(Cursor.HAND_CURSOR)); super.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if (dateChooser == null) { dateChooser = new DateChooser(); } Point p = getLocationOnScreen(); p.y = p.y + 30; dateChooser.showDateChooser(p); } }); } private static Date getNowDate() { return Calendar.getInstance().getTime(); } private static SimpleDateFormat getDefaultDateFormat() { return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); } /** * 得到当前使用的日期格式化器 * @return 日期格式化器 */ public SimpleDateFormat getCurrentSimpleDateFormat(){ if(this.sdf != null){ return sdf; }else{ return getDefaultDateFormat(); } } //保存原始是日期时间 private void initOriginalText(String dateString) { this.originalText = dateString; } //保存原始是日期时间 private void initOriginalText(Date date) { this.originalText = preLabel + getDefaultDateFormat().format(date); } /** * 得到当前记忆的原始日期时间 * @return 当前记忆的原始日期时间（未修改前的日期时间） */ public String getOriginalText() { return originalText; } // 覆盖父类的方法 @Override public void setText(String s) { Date date; try { date = getDefaultDateFormat().parse(s); } catch (ParseException e) { date = getNowDate(); } setDate(date); } public void setText(SimpleDateFormat df, String s) { Date date; try { date = df.parse(s); } catch (ParseException e) { date = getNowDate(); } setDate(date); } public void setDate(Date date) { super.setText(preLabel + getDefaultDateFormat().format(date)); } public Date getDate() { String dateString = getText().substring(preLabel.length()); try { SimpleDateFormat currentSdf = getCurrentSimpleDateFormat(); return currentSdf.parse(dateString); } catch (ParseException e) { return getNowDate(); } } /** * 覆盖父类的方法使之无效 * @param listener 响应监听器 */ @Override public void addActionListener(ActionListener listener) { } /** * 内部类，主要是定义一个JPanel，然后把日历相关的所有内容填入本JPanel， * 然后再创建一个JDialog，把本内部类定义的JPanel放入JDialog的内容区 */ private class DateChooser extends JPanel implements ActionListener, ChangeListener { int startYear = 1980; // 默认【最小】显示年份 int lastYear = 2050; // 默认【最大】显示年份 int width = 390; // 界面宽度 int height = 210; // 界面高度 Color backGroundColor = Color.gray; // 底色 // 月历表格配色----------------// Color palletTableColor = Color.white; // 日历表底色 Color todayBackColor = Color.orange; // 今天背景色 Color weekFontColor = Color.blue; // 星期文字色 Color dateFontColor = Color.black; // 日期文字色 Color weekendFontColor = Color.red; // 周末文字色 // 控制条配色------------------// Color controlLineColor = Color.pink; // 控制条底色 Color controlTextColor = Color.white; // 控制条标签文字色 Color rbFontColor = Color.white; // RoundBox文字色 Color rbBorderColor = Color.red; // RoundBox边框色 Color rbButtonColor = Color.pink; // RoundBox按钮色 Color rbBtFontColor = Color.red; // RoundBox按钮文字色 /** 点击DateChooserButton时弹出的对话框，日历内容在这个对话框内 */ JDialog dialog; JSpinner yearSpin; JSpinner monthSpin; JSpinner daySpin; JSpinner hourSpin; JSpinner minuteSpin; JSpinner secondSpin; JButton[][] daysButton = new JButton[6][7]; DateChooser() { setLayout(new BorderLayout()); setBorder(new LineBorder(backGroundColor, 2)); setBackground(backGroundColor); JPanel topYearAndMonth = createYearAndMonthPanal(); add(topYearAndMonth, BorderLayout.NORTH); JPanel centerWeekAndDay = createWeekAndDayPanal(); add(centerWeekAndDay, BorderLayout.CENTER); JPanel buttonBarPanel = createButtonBarPanel(); this.add(buttonBarPanel, java.awt.BorderLayout.SOUTH); } private JPanel createYearAndMonthPanal() { Calendar c = getCalendar(); int currentYear = c.get(Calendar.YEAR); int currentMonth = c.get(Calendar.MONTH) + 1; int currentHour = c.get(Calendar.HOUR_OF_DAY); int currentMinute = c.get(Calendar.MINUTE); int currentSecond = c.get(Calendar.SECOND); JPanel result = new JPanel(); result.setLayout(new FlowLayout()); result.setBackground(controlLineColor); yearSpin = new JSpinner(new SpinnerNumberModel(currentYear, startYear, lastYear, 1)); yearSpin.setPreferredSize(new Dimension(48, 20)); yearSpin.setName("Year"); yearSpin.setEditor(new JSpinner.NumberEditor(yearSpin, "####")); yearSpin.addChangeListener(this); result.add(yearSpin); JLabel yearLabel = new JLabel("年"); yearLabel.setForeground(controlTextColor); result.add(yearLabel); monthSpin = new JSpinner(new SpinnerNumberModel(currentMonth, 1, 12, 1)); monthSpin.setPreferredSize(new Dimension(35, 20)); monthSpin.setName("Month"); monthSpin.addChangeListener(this); result.add(monthSpin); JLabel monthLabel = new JLabel("月"); monthLabel.setForeground(controlTextColor); result.add(monthLabel); //如果这里要能够选择,会要判断很多东西,比如每个月分别由多少日,以及闰年问题.所以,就干脆把Enable设为false daySpin = new JSpinner(new SpinnerNumberModel(currentMonth, 1, 31, 1)); daySpin.setPreferredSize(new Dimension(35, 20)); daySpin.setName("Day"); daySpin.addChangeListener(this); daySpin.setEnabled(false); daySpin.setToolTipText("请下下面的日历面板中进行选择哪一天！"); result.add(daySpin); JLabel dayLabel = new JLabel("日"); dayLabel.setForeground(controlTextColor); result.add(dayLabel); hourSpin = new JSpinner(new SpinnerNumberModel(currentHour, 0, 23, 1)); hourSpin.setPreferredSize(new Dimension(35, 20)); hourSpin.setName("Hour"); hourSpin.addChangeListener(this); result.add(hourSpin); JLabel hourLabel = new JLabel("时"); hourLabel.setForeground(controlTextColor); result.add(hourLabel); minuteSpin = new JSpinner(new SpinnerNumberModel(currentMinute, 0, 59, 1)); minuteSpin.setPreferredSize(new Dimension(35, 20)); minuteSpin.setName("Minute"); minuteSpin.addChangeListener(this); result.add(minuteSpin); JLabel minuteLabel = new JLabel("分"); hourLabel.setForeground(controlTextColor); result.add(minuteLabel); secondSpin = new JSpinner(new SpinnerNumberModel(currentSecond, 0, 59, 1)); secondSpin.setPreferredSize(new Dimension(35, 20)); secondSpin.setName("Second"); secondSpin.addChangeListener(this); result.add(secondSpin); JLabel secondLabel = new JLabel("秒"); hourLabel.setForeground(controlTextColor); result.add(secondLabel); return result; } private JPanel createWeekAndDayPanal() { String colname[] = {"日", "一", "二", "三", "四", "五", "六"}; JPanel result = new JPanel(); // 设置固定字体，以免调用环境改变影响界面美观 result.setFont(new Font("宋体", Font.PLAIN, 12)); result.setLayout(new GridLayout(7, 7)); result.setBackground(Color.white); JLabel cell; for (int i = 0; i < 7; i++) { cell = new JLabel(colname[i]); cell.setHorizontalAlignment(JLabel.RIGHT); if (i == 0 || i == 6) { cell.setForeground(weekendFontColor); } else { cell.setForeground(weekFontColor); } result.add(cell); } int actionCommandId = 0; for (int i = 0; i < 6; i++) { for (int j = 0; j < 7; j++) { JButton numberButton = new JButton(); numberButton.setBorder(null); numberButton.setHorizontalAlignment(SwingConstants.RIGHT); numberButton.setActionCommand(String.valueOf(actionCommandId)); numberButton.addActionListener(this); numberButton.setBackground(palletTableColor); numberButton.setForeground(dateFontColor); if (j == 0 || j == 6) { numberButton.setForeground(weekendFontColor); } else { numberButton.setForeground(dateFontColor); } daysButton[i][j] = numberButton; result.add(numberButton); actionCommandId++; } } return result; } /** 得到DateChooserButton的当前text，本方法是为按钮事件匿名类准备的。 */ public String getTextOfDateChooserButton() { return getText(); } /** 恢复DateChooserButton的原始日期时间text，本方法是为按钮事件匿名类准备的。 */ public void restoreTheOriginalDate() { String originalText = getOriginalText(); setText(originalText); } private JPanel createButtonBarPanel() { JPanel panel = new JPanel(); panel.setLayout(new java.awt.GridLayout(1, 2)); JButton ok = new JButton("确定"); ok.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { //记忆原始日期时间 initOriginalText(getTextOfDateChooserButton()); //隐藏日历对话框 dialog.setVisible(false); } }); panel.add(ok); JButton cancel = new JButton("取消"); cancel.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { //恢复原始的日期时间 restoreTheOriginalDate(); //隐藏日历对话框 dialog.setVisible(false); } }); panel.add(cancel); return panel; } private JDialog createDialog(Frame owner) { JDialog result = new JDialog(owner, "日期时间选择", true); result.setDefaultCloseOperation(JDialog.HIDE_ON_CLOSE); result.getContentPane().add(this, BorderLayout.CENTER); result.pack(); result.setSize(width, height); return result; } void showDateChooser(Point position) { Frame owner = (Frame) SwingUtilities.getWindowAncestor(DateChooserJButton.this); if (dialog == null || dialog.getOwner() != owner) { dialog = createDialog(owner); } dialog.setLocation(getAppropriateLocation(owner, position)); flushWeekAndDay(); dialog.setVisible(true); } Point getAppropriateLocation(Frame owner, Point position) { Point result = new Point(position); Point p = owner.getLocation(); int offsetX = (position.x + width) - (p.x + owner.getWidth()); int offsetY = (position.y + height) - (p.y + owner.getHeight()); if (offsetX > 0) { result.x -= offsetX; } if (offsetY > 0) { result.y -= offsetY; } return result; } private Calendar getCalendar() { Calendar result = Calendar.getInstance(); result.setTime(getDate()); return result; } private int getSelectedYear() { return ((Integer) yearSpin.getValue()).intValue(); } private int getSelectedMonth() { return ((Integer) monthSpin.getValue()).intValue(); } private int getSelectedHour() { return ((Integer) hourSpin.getValue()).intValue(); } private int getSelectedMinite() { return ((Integer) minuteSpin.getValue()).intValue(); } private int getSelectedSecond() { return ((Integer) secondSpin.getValue()).intValue(); } private void dayColorUpdate(boolean isOldDay) { Calendar c = getCalendar(); int day = c.get(Calendar.DAY_OF_MONTH); c.set(Calendar.DAY_OF_MONTH, 1); int actionCommandId = day - 2 + c.get(Calendar.DAY_OF_WEEK); int i = actionCommandId / 7; int j = actionCommandId % 7; if (isOldDay) { daysButton[i][j].setForeground(dateFontColor); } else { daysButton[i][j].setForeground(todayBackColor); } } private void flushWeekAndDay() { Calendar c = getCalendar(); c.set(Calendar.DAY_OF_MONTH, 1); int maxDayNo = c.getActualMaximum(Calendar.DAY_OF_MONTH); int dayNo = 2 - c.get(Calendar.DAY_OF_WEEK); for (int i = 0; i < 6; i++) { for (int j = 0; j < 7; j++) { String s = ""; if (dayNo >= 1 && dayNo <= maxDayNo) { s = String.valueOf(dayNo); } daysButton[i][j].setText(s); dayNo++; } } dayColorUpdate(false); } /** * 选择日期时的响应事件 */ @Override public void stateChanged(ChangeEvent e) { JSpinner source = (JSpinner) e.getSource(); Calendar c = getCalendar(); if (source.getName().equals("Hour")) { c.set(Calendar.HOUR_OF_DAY, getSelectedHour()); setDate(c.getTime()); return; } if (source.getName().equals("Minute")) { c.set(Calendar.MINUTE, getSelectedMinite()); setDate(c.getTime()); return; } if (source.getName().equals("Second")) { c.set(Calendar.SECOND, getSelectedSecond()); setDate(c.getTime()); return; } dayColorUpdate(true); if (source.getName().equals("Year")) { c.set(Calendar.YEAR, getSelectedYear()); } else if (source.getName().equals("Month")) { c.set(Calendar.MONTH, getSelectedMonth() - 1); } setDate(c.getTime()); flushWeekAndDay(); } /** * 选择日期时的响应事件 */ @Override public void actionPerformed(ActionEvent e) { JButton source = (JButton) e.getSource(); if (source.getText().length() == 0) { return; } dayColorUpdate(true); source.setForeground(todayBackColor); int newDay = Integer.parseInt(source.getText()); Calendar c = getCalendar(); c.set(Calendar.DAY_OF_MONTH, newDay); setDate(c.getTime()); //把daySpin中的值也变了 daySpin.setValue(Integer.valueOf(newDay)); } } /** * 测试方法 */ public static void main(String[] args) { JFrame mainFrame = new JFrame("测试"); mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mainFrame.setSize(300, 300); mainFrame.setLayout(new java.awt.BorderLayout()); mainFrame.add(new DateChooserJButton(), java.awt.BorderLayout.CENTER); Toolkit kit = Toolkit.getDefaultToolkit(); Dimension screenSize = kit.getScreenSize(); int width = (int) screenSize.getWidth(); int height = (int) screenSize.getHeight(); int w = mainFrame.getWidth(); int h = mainFrame.getHeight(); mainFrame.setLocation((width - w) / 2, (height - h) / 2); mainFrame.setVisible(true); } }