日期时间选择对话框 (Java)

 import java.awt.*; import java.awt.event.*; import java.awt.geom.*; import java.util.*; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JComponent; import javax.swing.JDialog; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JSpinner; import javax.swing.JTextField; import javax.swing.SpinnerDateModel; import javax.swing.SpinnerNumberModel; import javax.swing.SwingUtilities; import javax.swing.Timer; import javax.swing.UIManager; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; /** * 日期时间选择对话框，模仿Windows日期和时间属性对话框 * @see #showDialog(java.awt.Component, String, java.util.Calendar) */ public class JDateChooser extends JPanel implements ChangeListener, ItemListener { /** * */ private static final long serialVersionUID = 1L; private static boolean showTime=false; private JComboBox month = new JComboBox(new String[]{"一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月"}); private JSpinner year = new JSpinner(new SpinnerNumberModel(1, 1, 9999, 1)); private DateGrid dateGrid = new DateGrid(); private JSpinner time = new JSpinner(new SpinnerDateModel()); private static Timer timer; public JDateChooser(Calendar initialDate) { timer=new Timer(1000,new ActionListener(){ public void actionPerformed(ActionEvent e) { time.setValue(new Date()); }}); this.setBackground(Color.white); this.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 5)); this.setLayout(new GridLayout(1, 1, 5, 10)); JPanel p1 = new JPanel(); p1.setBackground(Color.white); p1.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("日期"), BorderFactory.createEmptyBorder(5, 5, 10, 5))); p1.setLayout(new BorderLayout(10, 10)); JPanel p11 = new JPanel(new GridLayout(1, 2, 10, 10)); p11.setBackground(Color.white); p11.add(month); month.addItemListener(this); month.setPreferredSize(new Dimension(0, 20)); p11.add(year); year.setEditor(new JSpinner.NumberEditor(year, "0")); year.addChangeListener(this); year.setPreferredSize(new Dimension(0, 20)); p1.add(p11, BorderLayout.NORTH); p1.add(dateGrid); this.add(p1); if(showTime){ JPanel p2 = new JPanel(new BorderLayout(10, 10)); p2.setBackground(Color.white); p2.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("时间"), BorderFactory.createEmptyBorder(0, 10, 10, 10))); time.setPreferredSize(new Dimension(0, 20)); JSpinner.DateEditor editor = new JSpinner.DateEditor(time, "HH:mm:ss"); editor.getTextField().setHorizontalAlignment(JTextField.RIGHT); time.setEditor(editor); JPanel p = new JPanel(); p.setBackground(Color.white); time.setPreferredSize(new Dimension(100, 20)); p.add(time); p2.add(p, BorderLayout.SOUTH); p2.add(new Clock(time)); // timer.start(); this.add(p2); setPreferredSize(new Dimension(369, 200)); }else{ setPreferredSize(new Dimension(185, 200)); } setCalendar(initialDate); } /** * 设置日期和时间 * @param calendar 日期和时间 */ public void setCalendar(Calendar calendar) { if(calendar==null) { calendar = new GregorianCalendar(); } month.setSelectedIndex(calendar.get(Calendar.MONTH)); year.setValue(calendar.get(Calendar.YEAR)); int year = (Integer)this.year.getValue(); int month = this.month.getSelectedIndex()+1; dateGrid.set(year, month); dateGrid.setDay(calendar.get(Calendar.DAY_OF_MONTH)); if(showTime==false){ calendar.set(GregorianCalendar.HOUR_OF_DAY, 0); calendar.set(GregorianCalendar.MINUTE, 0); calendar.set(GregorianCalendar.MILLISECOND, 0); } time.setValue(calendar.getTime()); } /** * 获得日期和时间 * @return 日期和时间 */ public Calendar getCalendar() { int year = (Integer)this.year.getValue(); int month = this.month.getSelectedIndex(); int day = dateGrid.getDay(); Calendar c = Calendar.getInstance(); Date date = (Date) time.getValue(); c.setTime(date); c.set(year, month, day); return c; } /** * 显示对话框以选择日期，使用方法同JColorChooser.showDialog * @param c 父级组件 * @param title 对话框标题 * @param initialDate 初始化日期和时间 * @param showTime 是否显示钟表 * @return 选择的日期，null为取消选择 */ public static Calendar showDialog(Component c, String title, Calendar initialDate, boolean showTime) { JDateChooser.showTime=showTime; Window window = c == null ? JOptionPane.getRootFrame() : SwingUtilities .windowForComponent(c); JDialog dlg; if (window instanceof Frame) dlg = new JDialog((Frame) window, title, true); else dlg = new JDialog((Dialog) window, title, true); JDateChooser dc = new JDateChooser(initialDate); ActionHandler actionHandler = new ActionHandler(dc); JPanel p = new JPanel(new BorderLayout()); p.setBorder(BorderFactory.createCompoundBorder(BorderFactory .createEmptyBorder(6, 6, 0, 6), BorderFactory .createEtchedBorder())); p.add(dc); dlg.add(p); p = new JPanel(new FlowLayout(FlowLayout.RIGHT)); dlg.add(p, BorderLayout.SOUTH); JButton btOk = new JButton("确定"); btOk.addActionListener(actionHandler); dlg.getRootPane().setDefaultButton(btOk); p.add(btOk); JButton btCancel = new JButton("取消"); btCancel.addActionListener(actionHandler); p.add(btCancel); dlg.pack(); dlg.setLocationRelativeTo(window); dlg.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE); dlg.addWindowListener(actionHandler); dlg.setVisible(true); return actionHandler.getCalendar(); } public void stateChanged(ChangeEvent e) { dateGrid.set((Integer)year.getValue(), month.getSelectedIndex()+1); } public void itemStateChanged(ItemEvent e) { dateGrid.set((Integer)year.getValue(), month.getSelectedIndex()+1); } private static class ActionHandler extends WindowAdapter implements ActionListener { private JDateChooser dc; public ActionHandler(JDateChooser dc) { this.dc = dc; } public void windowClosing(WindowEvent e) { actionPerformed(new ActionEvent(this, 0, "取消")); } public void actionPerformed(ActionEvent e) { timer.stop(); JDialog dlg = (JDialog) SwingUtilities.windowForComponent(dc); if("取消".equals(e.getActionCommand())) { dc = null; } dlg.dispose(); } public Calendar getCalendar() { return dc==null?null:dc.getCalendar(); } } private static class DateGrid extends JPanel implements MouseListener { JLabel[][] lbs = new JLabel[7][7]; int year = 1, month = 1, day = 1; public DateGrid() { super(new GridLayout(7, 7)); this.setBackground(Color.white); Color blue = new Color(140, 150, 255); Color white = new Color(220, 220, 255); for(int i=0; i<7; i++) { for(int j=0; j<7; j++) { this.add(lbs[i][j] = new JLabel((String)null)); lbs[i][j].setOpaque(true); lbs[i][j].setHorizontalAlignment(JLabel.CENTER); lbs[i][j].setBackground(Color.white); if(i>0) { lbs[i][j].addMouseListener(this); } else { lbs[0][j].setBackground(blue); lbs[0][j].setForeground(white); } } } lbs[0][0].setText("日"); lbs[0][1].setText("一"); lbs[0][2].setText("二"); lbs[0][3].setText("三"); lbs[0][4].setText("四");