package com.tfj.demo;

import java.awt.Dimension;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;

import javax.swing.JButton;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JPanel;

/**
 * @author Jacksile E-mail:tufujietec@foxmail.com
 * @date 2016年4月13日 下午2:48:54
 * @function
 */

public class GetDate extends JFrame {
    private JFormattedTextField datelineField;
    private DateChooserSecond dateChooser;
    private static int WIDTH = 400;
    private static int HEIGHT = 100;

    GetDate() {

        JPanel p = new JPanel();
        setContentPane(p);
        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        datelineField = new JFormattedTextField(dateFormat);
        Calendar deadline = GregorianCalendar.getInstance();
        datelineField.setValue(deadline.getTime());
        p.add(datelineField);

        JButton b = new JButton("时间设置");
        b.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent ev) {
                if (dateChooser == null) {
                    dateChooser = new DateChooserSecond(datelineField);
                }
                Point p = getLocationOnScreen();
                p.y = p.y + 30;
                dateChooser.showDialog("日期时间选择器", p);
            }
        });
        p.add(b);
        setSize(WIDTH, HEIGHT);
        
        //设置放在中间
        Toolkit kit = Toolkit.getDefaultToolkit();
        Dimension screenSize = kit.getScreenSize();
        int screenWidth = screenSize.width;
        int screenHeight = screenSize.height;
        setLocation((screenWidth - WIDTH) / 2, (screenHeight - HEIGHT) / 2);
        
        setVisible(true);
        setTitle("日期时间选择器");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new GetDate();
    }
}

package com.tfj.demo;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dialog;
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.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFormattedTextField;
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;

/**
 * @author Jacksile E-mail:tufujietec@foxmail.com
 * @date 2016年4月13日 下午2:47:02
 * @function
 */

public class DateChooserSecond extends JPanel implements ActionListener, ChangeListener {

    public DateChooserSecond(JFormattedTextField dateField) {
        this.dateField = dateField;
        setLayout(new BorderLayout());
        setBorder(new LineBorder(backGroundColor, 2));
        setBackground(backGroundColor);

        calendar = GregorianCalendar.getInstance();
        JPanel topYearAndMonth = createYMHMSPanel();
        add(topYearAndMonth, BorderLayout.NORTH);
        JPanel centerWeekAndDay = createWeekAndDayPanel();
        add(centerWeekAndDay, BorderLayout.CENTER);
    }

    private JPanel createYMHMSPanel() {
        JPanel panel = new JPanel();
        panel.setLayout(new FlowLayout());
        panel.setBackground(controlLineColor);

        int currentYear = calendar.get(Calendar.YEAR);
        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);
        panel.add(yearSpin);

        JLabel yearLabel = new JLabel("年");
        yearLabel.setForeground(controlTextColor);
        panel.add(yearLabel);

        int currentMonth = calendar.get(Calendar.MONTH) + 1;
        monthSpin = new JSpinner(new SpinnerNumberModel(currentMonth, 1, 12, 1));
        monthSpin.setPreferredSize(new Dimension(35, 20));
        monthSpin.setName("Month");
        monthSpin.addChangeListener(this);
        panel.add(monthSpin);

        JLabel monthLabel = new JLabel("月");
        monthLabel.setForeground(controlTextColor);
        panel.add(monthLabel);

        int currentHour = calendar.get(Calendar.HOUR_OF_DAY);
        hourSpin = new JSpinner(new SpinnerNumberModel(currentHour, 0, 23, 1));
        hourSpin.setPreferredSize(new Dimension(35, 20));
        hourSpin.setName("Hour");
        hourSpin.addChangeListener(this);
        panel.add(hourSpin);

        JLabel seperatorLabel = new JLabel(":");
        seperatorLabel.setForeground(controlTextColor);
        panel.add(seperatorLabel);

        int currentMinute = calendar.get(Calendar.MINUTE);
        minuteSpin = new JSpinner(new SpinnerNumberModel(currentMinute, 0, 59, 1));
        minuteSpin.setPreferredSize(new Dimension(35, 20));
        minuteSpin.setName("Minute");
        minuteSpin.addChangeListener(this);
        panel.add(minuteSpin);

        seperatorLabel = new JLabel(":");
        seperatorLabel.setForeground(controlTextColor);
        panel.add(seperatorLabel);

        int currentSecond = calendar.get(Calendar.SECOND);
        secondSpin = new JSpinner(new SpinnerNumberModel(currentSecond, 0, 59, 1));
        secondSpin.setPreferredSize(new Dimension(35, 20));
        secondSpin.setName("Second");
        secondSpin.addChangeListener(this);
        panel.add(secondSpin);

        return panel;
    }

    private JPanel createWeekAndDayPanel() {
        String colname[] = { "SUN", "MON", "TUE", "WEN", "THU", "FRI", "SAT" };
        JPanel panel = new JPanel();
        // 设置固定字体，以免调用环境改变影响界面美观
        panel.setFont(new Font("SansSerif", Font.PLAIN, 12));
        panel.setLayout(new GridLayout(7, 7));
        panel.setBackground(Color.white);
        JLabel cell = null;

        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);
            panel.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);
                if (j == 0 || j == 6)
                    numberButton.setForeground(weekendFontColor);
                else
                    numberButton.setForeground(dateFontColor);
                daysButton[i][j] = numberButton;
                panel.add(numberButton);
                actionCommandId++;
            }
        }

        return panel;
    }

    private JDialog createDialog(String title) {
        Window window = SwingUtilities.getWindowAncestor(dateField);

        JDialog dialog = null;
        if (window instanceof Frame) {
            dialog = new DateChooserDialog(this, (Frame) window, title);
        } else {
            dialog = new DateChooserDialog(this, (Dialog) window, title);
        }

        dialog.setDefaultCloseOperation(JDialog.HIDE_ON_CLOSE);
        dialog.getContentPane().add(this, BorderLayout.CENTER);
        dialog.pack();
        dialog.setSize(width, height);

        return dialog;
    }

    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;
    }

    void setDateField() {
        dateField.setValue(calendar.getTime());
    }

    public void showDialog(String title, Point position) {
        Frame owner = (Frame) SwingUtilities.getWindowAncestor(dateField);
        if (dialog == null || dialog.getOwner() != owner)
            dialog = createDialog(title);
        dialog.setLocation(getAppropriateLocation(owner, position));

        flushCalendar();

        dialog.setVisible(true);
    }

    private void flushCalendar() {
        calendar.setTime((Date) dateField.getValue());

        int currentYear = calendar.get(Calendar.YEAR);
        yearSpin.setValue(currentYear);
        int currentMonth = calendar.get(Calendar.MONTH) + 1;
        monthSpin.setValue(currentMonth);
        int currentHour = calendar.get(Calendar.HOUR_OF_DAY);
        hourSpin.setValue(currentHour);
        int currentMinute = calendar.get(Calendar.MINUTE);
        minuteSpin.setValue(currentMinute);
        int currentSecond = calendar.get(Calendar.SECOND);
        secondSpin.setValue(currentSecond);

        dayColorUpdate(true);
        flushWeekAndDay();
    }

    private void dayColorUpdate(boolean isOldDay) {
        int day = calendar.get(Calendar.DAY_OF_MONTH);
        calendar.set(Calendar.DAY_OF_MONTH, 1);
        int actionCommandId = day - 2 + calendar.get(Calendar.DAY_OF_WEEK);
        calendar.set(Calendar.DAY_OF_MONTH, day);

        int i = actionCommandId / 7;
        int j = actionCommandId % 7;
        if (isOldDay == true) {
            if (j == 0 || j == 6)
                daysButton[i][j].setForeground(weekendFontColor);
            else
                daysButton[i][j].setForeground(dateFontColor);
        } else
            daysButton[i][j].setForeground(todayBackColor);
    }

    private void flushWeekAndDay() {
        int day = calendar.get(Calendar.DAY_OF_MONTH);
        calendar.set(Calendar.DAY_OF_MONTH, 1);
        int maxDayNo = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
        int dayNo = 2 - calendar.get(Calendar.DAY_OF_WEEK);
        calendar.set(Calendar.DAY_OF_MONTH, day);
        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);
    }

    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 getSelectedMinute() {
        return ((Integer) minuteSpin.getValue()).intValue();
    }

    private int getSelectedSecond() {
        return ((Integer) secondSpin.getValue()).intValue();
    }

    public void stateChanged(ChangeEvent e) {
        JSpinner source = (JSpinner) e.getSource();

        if (source.getName().equals("Second")) {
            calendar.set(Calendar.SECOND, getSelectedSecond());
            return;
        }
        if (source.getName().equals("Minute")) {
            calendar.set(Calendar.MINUTE, getSelectedMinute());
            return;
        }
        if (source.getName().equals("Hour")) {
            calendar.set(Calendar.HOUR_OF_DAY, getSelectedHour());
            return;
        }

        dayColorUpdate(true);

        if (source.getName().equals("Year"))
            calendar.set(Calendar.YEAR, getSelectedYear());
        else
            calendar.set(Calendar.MONTH, getSelectedMonth() - 1);

        flushWeekAndDay();
    }

    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.set(Calendar.DAY_OF_MONTH, newDay);
    }

    int startYear = 1980; // 默认【最小】显示年份
    int lastYear = 2050; // 默认【最大】显示年份
    int width = 320; // 界面宽度
    int height = 200; // 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

    JDialog dialog;
    JSpinner yearSpin;
    JSpinner monthSpin;
    JButton[][] daysButton = new JButton[6][7];
    JSpinner hourSpin;
    JSpinner minuteSpin;
    JSpinner secondSpin;

    Calendar calendar = null;
    JFormattedTextField dateField;

    private class DateChooserDialog extends JDialog {
        DateChooserDialog(DateChooserSecond dateChooser, Frame frame, String title) {
            super(frame, title, true);
            this.dateChooser = dateChooser;
        }

        DateChooserDialog(DateChooserSecond dateChooser, Dialog dialog, String title) {
            super(dialog, title, true);
            this.dateChooser = dateChooser;
        }

        public void hide() {
            dateChooser.setDateField();
            super.hide();
        }

        private DateChooserSecond dateChooser;
    }
}

package com.tfj.demo;

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.Point;
import java.awt.Polygon;
import java.awt.Stroke;
import java.awt.Toolkit;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Comparator;
import java.util.Date;
import java.util.List;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Popup;
import javax.swing.PopupFactory;
import javax.swing.SwingUtilities;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;

/**
 * @author Jacksile E-mail:tufujietec@foxmail.com
 * @date 2016年4月13日 下午3:32:23
 * @function
 */

public class DateChooserDay extends JPanel {

    private static final long serialVersionUID = 4529266044762990227L;

    private Date initDate;
    private Calendar now = Calendar.getInstance();
    private Calendar select;
    private JPanel monthPanel;// 月历
    private JP1 jp1;// 四块面板，组成
    private JP2 jp2;
    private JP3 jp3;
    private JP4 jp4;
    private Font font = new Font("宋体", Font.PLAIN, 12);
    private final LabelManager lm = new LabelManager();
    private JLabel showDate; // ,toSelect;
    private SimpleDateFormat sdf;
    private boolean isShow = false;
    private Popup pop;
    private static final int WIDTH = 400;
    private static final int HEIGHT = 100;

    /**
     * Creates a new instance of DateChooser
     */
    public DateChooserDay() {
        this(new Date());
    }

    public DateChooserDay(Date date) {
        this(date, "yyyy年MM月dd日");
    }

    public DateChooserDay(String format) {
        this(new Date(), format);
    }

    public DateChooserDay(Date date, String format) {
        initDate = date;
        sdf = new SimpleDateFormat(format);
        select = Calendar.getInstance();
        select.setTime(initDate);
        initPanel();
        initLabel();
    }

    /**
     * 是否允许用户选择
     */
    public void setEnabled(boolean b) {
        super.setEnabled(b);
        showDate.setEnabled(b);
    }

    /**
     * 得到当前选择框的日期
     */
    public Date getDate() {
        return select.getTime();
    }

    // 根据初始化的日期，初始化面板
    private void initPanel() {
        monthPanel = new JPanel(new BorderLayout());
        monthPanel.setBorder(BorderFactory.createLineBorder(Color.BLUE));
        JPanel up = new JPanel(new BorderLayout());
        up.add(jp1 = new JP1(), BorderLayout.NORTH);
        up.add(jp2 = new JP2(), BorderLayout.CENTER);
        monthPanel.add(jp3 = new JP3(), BorderLayout.CENTER);
        monthPanel.add(up, BorderLayout.NORTH);
        monthPanel.add(jp4 = new JP4(), BorderLayout.SOUTH);
        this.addAncestorListener(new AncestorListener() {
            public void ancestorAdded(AncestorEvent event) {

            }

            public void ancestorRemoved(AncestorEvent event) {

            }

            // 只要祖先组件一移动，马上就让popup消失
            public void ancestorMoved(AncestorEvent event) {
                hidePanel();
            }
        });
    }

    // 初始化标签
    private void initLabel() {
        showDate = new JLabel(sdf.format(initDate));
        showDate.setRequestFocusEnabled(true);
        showDate.addMouseListener(new MouseAdapter() {
            public void mousePressed(MouseEvent me) {
                showDate.requestFocusInWindow();
            }
        });
        // toSelect=new JLabel(sdf.format(initDate));
        // toSelect.setBorder(BorderFactory.createLineBorder(Color.BLACK));
        // toSelect.setRequestFocusEnabled(true);
        this.setBackground(Color.WHITE);
        this.add(showDate, BorderLayout.CENTER);
        // this.add(toSelect,BorderLayout.EAST);
        this.setPreferredSize(new Dimension(90, 25));
        this.setBorder(BorderFactory.createLineBorder(Color.GRAY));
        showDate.addMouseListener(new MouseAdapter() {
            public void mouseEntered(MouseEvent me) {
                if (showDate.isEnabled()) {
                    showDate.setCursor(new Cursor(Cursor.HAND_CURSOR));
                    showDate.setForeground(Color.RED);
                }
            }

            public void mouseExited(MouseEvent me) {
                if (showDate.isEnabled()) {
                    showDate.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
                    showDate.setForeground(Color.BLACK);
                }
            }

            public void mousePressed(MouseEvent me) {
                if (showDate.isEnabled()) {
                    showDate.setForeground(Color.CYAN);
                    if (isShow) {
                        hidePanel();
                    } else {
                        showPanel(showDate);
                    }
                }
            }

            public void mouseReleased(MouseEvent me) {
                if (showDate.isEnabled()) {
                    showDate.setForeground(Color.BLACK);
                }
            }
        });
        showDate.addFocusListener(new FocusListener() {
            public void focusLost(FocusEvent e) {
                hidePanel();
            }

            public void focusGained(FocusEvent e) {

            }
        });
    }

    // 根据新的日期刷新
    private void refresh() {
        jp1.updateDate();
        jp3.updateDate();
        SwingUtilities.updateComponentTreeUI(this);
    }

    // 提交日期
    private void commit() {
        System.out.println("选中的日期是：" + sdf.format(select.getTime()));
        showDate.setText(sdf.format(select.getTime()));
        hidePanel();
    }

    // 隐藏日期选择面板
    private void hidePanel() {
        if (pop != null) {
            isShow = false;
            pop.hide();
            pop = null;
        }
    }

    // 显示日期选择面板
    private void showPanel(Component owner) {
        if (pop != null) {
            pop.hide();
        }
        Point show = new Point(0, showDate.getHeight());
        SwingUtilities.convertPointToScreen(show, showDate);
        Dimension size = Toolkit.getDefaultToolkit().getScreenSize();
        int x = show.x;
        int y = show.y;
        if (x < 0) {
            x = 0;
        }
        if (x > size.width - 295) {
            x = size.width - 295;
        }
        if (y < size.height - 170) {
        } else {
            y -= 188;
        }
        pop = PopupFactory.getSharedInstance().getPopup(owner, monthPanel, x, y);
        pop.show();
        isShow = true;
    }

    /**
     * 最上面的面板用来显示月份的增减
     */
    private class JP1 extends JPanel {
        JLabel yearleft, yearright, monthleft, monthright, center, centercontainer;

        public JP1() {
            super(new BorderLayout());
            this.setBackground(new Color(160, 185, 215));
            initJP1();
        }

        private void initJP1() {
            yearleft = new JLabel("  <<", JLabel.CENTER);
            yearleft.setToolTipText("上一年");
            yearright = new JLabel(">>  ", JLabel.CENTER);
            yearright.setToolTipText("下一年");
            yearleft.setBorder(BorderFactory.createEmptyBorder(2, 0, 0, 0));
            yearright.setBorder(BorderFactory.createEmptyBorder(2, 0, 0, 0));

            monthleft = new JLabel("  <", JLabel.RIGHT);
            monthleft.setToolTipText("上一月");
            monthright = new JLabel(">  ", JLabel.LEFT);
            monthright.setToolTipText("下一月");
            monthleft.setBorder(BorderFactory.createEmptyBorder(2, 30, 0, 0));
            monthright.setBorder(BorderFactory.createEmptyBorder(2, 0, 0, 30));

            centercontainer = new JLabel("", JLabel.CENTER);
            centercontainer.setLayout(new BorderLayout());
            center = new JLabel("", JLabel.CENTER);

            centercontainer.add(monthleft, BorderLayout.WEST);
            centercontainer.add(center, BorderLayout.CENTER);
            centercontainer.add(monthright, BorderLayout.EAST);

            this.add(yearleft, BorderLayout.WEST);
            this.add(centercontainer, BorderLayout.CENTER);
            this.add(yearright, BorderLayout.EAST);
            this.setPreferredSize(new Dimension(295, 25));

            updateDate();

            yearleft.addMouseListener(new MouseAdapter() {
                public void mouseEntered(MouseEvent me) {
                    yearleft.setCursor(new Cursor(Cursor.HAND_CURSOR));
                    yearleft.setForeground(Color.RED);
                }

                public void mouseExited(MouseEvent me) {
                    yearleft.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
                    yearleft.setForeground(Color.BLACK);
                }

                public void mousePressed(MouseEvent me) {
                    select.add(Calendar.YEAR, -1);
                    yearleft.setForeground(Color.WHITE);
                    refresh();
                }

                public void mouseReleased(MouseEvent me) {
                    yearleft.setForeground(Color.BLACK);
                }
            });
            yearright.addMouseListener(new MouseAdapter() {
                public void mouseEntered(MouseEvent me) {
                    yearright.setCursor(new Cursor(Cursor.HAND_CURSOR));
                    yearright.setForeground(Color.RED);
                }

                public void mouseExited(MouseEvent me) {
                    yearright.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
                    yearright.setForeground(Color.BLACK);
                }

                public void mousePressed(MouseEvent me) {
                    select.add(Calendar.YEAR, 1);
                    yearright.setForeground(Color.WHITE);
                    refresh();
                }

                public void mouseReleased(MouseEvent me) {
                    yearright.setForeground(Color.BLACK);
                }
            });
            monthleft.addMouseListener(new MouseAdapter() {
                public void mouseEntered(MouseEvent me) {
                    monthleft.setCursor(new Cursor(Cursor.HAND_CURSOR));
                    monthleft.setForeground(Color.RED);
                }

                public void mouseExited(MouseEvent me) {
                    monthleft.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
                    monthleft.setForeground(Color.BLACK);
                }

                public void mousePressed(MouseEvent me) {
                    select.add(Calendar.MONTH, -1);
                    monthleft.setForeground(Color.WHITE);
                    refresh();
                }

                public void mouseReleased(MouseEvent me) {
                    monthleft.setForeground(Color.BLACK);
                }
            });
            monthright.addMouseListener(new MouseAdapter() {
                public void mouseEntered(MouseEvent me) {
                    monthright.setCursor(new Cursor(Cursor.HAND_CURSOR));
                    monthright.setForeground(Color.RED);
                }

                public void mouseExited(MouseEvent me) {
                    monthright.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
                    monthright.setForeground(Color.BLACK);
                }

                public void mousePressed(MouseEvent me) {
                    select.add(Calendar.MONTH, 1);
                    monthright.setForeground(Color.WHITE);
                    refresh();
                }

                public void mouseReleased(MouseEvent me) {
                    monthright.setForeground(Color.BLACK);
                }
            });
        }

        private void updateDate() {
            center.setText(select.get(Calendar.YEAR) + "年" + (select.get(Calendar.MONTH) + 1) + "月");
        }
    }

    private class JP2 extends JPanel {
        public JP2() {
            this.setPreferredSize(new Dimension(295, 20));
        }

        protected void paintComponent(Graphics g) {
            g.setFont(font);
            g.drawString("星期日 星期一 星期二 星期三 星期四 星期五 星期六", 5, 10);
            g.drawLine(0, 15, getWidth(), 15);
        }
    }

    private class JP3 extends JPanel {
        public JP3() {
            super(new GridLayout(6, 7));
            this.setPreferredSize(new Dimension(295, 100));
            initJP3();
        }

        private void initJP3() {
            updateDate();
        }

        public void updateDate() {
            this.removeAll();
            lm.clear();
            Date temp = select.getTime();
            Calendar select = Calendar.getInstance();
            select.setTime(temp);
            select.set(Calendar.DAY_OF_MONTH, 1);
            int index = select.get(Calendar.DAY_OF_WEEK);
            int sum = (index == 1 ? 8 : index);
            select.add(Calendar.DAY_OF_MONTH, 0 - sum);
            for (int i = 0; i < 42; i++) {
                select.add(Calendar.DAY_OF_MONTH, 1);
                lm.addLabel(new MyLabel(select.get(Calendar.YEAR), select.get(Calendar.MONTH),
                        select.get(Calendar.DAY_OF_MONTH)));
            }
            for (MyLabel my : lm.getLabels()) {
                this.add(my);
            }
            select.setTime(temp);
        }
    }

    private class MyLabel extends JLabel implements Comparator<MyLabel>, MouseListener, MouseMotionListener {
        private int year, month, day;
        private boolean isSelected;

        public MyLabel(int year, int month, int day) {
            super("" + day, JLabel.CENTER);
            this.year = year;
            this.day = day;
            this.month = month;
            this.addMouseListener(this);
            this.addMouseMotionListener(this);
            this.setFont(font);
            if (month == select.get(Calendar.MONTH)) {
                this.setForeground(Color.BLACK);
            } else {
                this.setForeground(Color.LIGHT_GRAY);
            }
            if (day == select.get(Calendar.DAY_OF_MONTH)) {
                this.setBackground(new Color(160, 185, 215));
            } else {
                this.setBackground(Color.WHITE);
            }
        }

        public boolean getIsSelected() {
            return isSelected;
        }

        public void setSelected(boolean b, boolean isDrag) {
            isSelected = b;
            if (b && !isDrag) {
                int temp = select.get(Calendar.MONTH);
                select.set(year, month, day);
                if (temp == month) {
                    SwingUtilities.updateComponentTreeUI(jp3);
                } else {
                    refresh();
                }
            }
            this.repaint();
        }

        protected void paintComponent(Graphics g) {
            if (day == select.get(Calendar.DAY_OF_MONTH) && month == select.get(Calendar.MONTH)) {
                // 如果当前日期是选择日期,则高亮显示
                g.setColor(new Color(160, 185, 215));
                g.fillRect(0, 0, getWidth(), getHeight());
            }
            if (year == now.get(Calendar.YEAR) && month == now.get(Calendar.MONTH)
                    && day == now.get(Calendar.DAY_OF_MONTH)) {
                // 如果日期和当前日期一样,则用红框
                Graphics2D gd = (Graphics2D) g;
                gd.setColor(Color.RED);
                Polygon p = new Polygon();
                p.addPoint(0, 0);
                p.addPoint(getWidth() - 1, 0);
                p.addPoint(getWidth() - 1, getHeight() - 1);
                p.addPoint(0, getHeight() - 1);
                gd.drawPolygon(p);
            }
            if (isSelected) {// 如果被选中了就画出一个虚线框出来
                Stroke s = new BasicStroke(1.0f, BasicStroke.CAP_SQUARE, BasicStroke.JOIN_BEVEL, 1.0f,
                        new float[] { 2.0f, 2.0f }, 1.0f);
                Graphics2D gd = (Graphics2D) g;
                gd.setStroke(s);
                gd.setColor(Color.BLACK);
                Polygon p = new Polygon();
                p.addPoint(0, 0);
                p.addPoint(getWidth() - 1, 0);
                p.addPoint(getWidth() - 1, getHeight() - 1);
                p.addPoint(0, getHeight() - 1);
                gd.drawPolygon(p);
            }
            super.paintComponent(g);
        }

        public boolean contains(Point p) {
            return this.getBounds().contains(p);
        }

        private void update() {
            repaint();
        }

        public void mouseClicked(MouseEvent e) {
        }

        public void mousePressed(MouseEvent e) {
            isSelected = true;
            update();
        }

        public void mouseReleased(MouseEvent e) {
            Point p = SwingUtilities.convertPoint(this, e.getPoint(), jp3);
            lm.setSelect(p, false);
            commit();
        }

        public void mouseEntered(MouseEvent e) {
        }

        public void mouseExited(MouseEvent e) {
        }

        public void mouseDragged(MouseEvent e) {
            Point p = SwingUtilities.convertPoint(this, e.getPoint(), jp3);
            lm.setSelect(p, true);
        }

        public void mouseMoved(MouseEvent e) {
        }

        public int compare(MyLabel o1, MyLabel o2) {
            Calendar c1 = Calendar.getInstance();
            c1.set(o1.year, o2.month, o1.day);
            Calendar c2 = Calendar.getInstance();
            c2.set(o2.year, o2.month, o2.day);
            return c1.compareTo(c2);
        }
    }

    private class LabelManager {
        private List<MyLabel> list;

        public LabelManager() {
            list = new ArrayList<MyLabel>();
        }

        public List<MyLabel> getLabels() {
            return list;
        }

        public void addLabel(MyLabel my) {
            list.add(my);
        }

        public void clear() {
            list.clear();
        }

        public void setSelect(MyLabel my, boolean b) {
            for (MyLabel m : list) {
                if (m.equals(my)) {
                    m.setSelected(true, b);
                } else {
                    m.setSelected(false, b);
                }
            }
        }

        public void setSelect(Point p, boolean b) {
            // 如果是拖动,则要优化一下,以提高效率
            if (b) {
                // 表示是否能返回,不用比较完所有的标签,能返回的标志就是把上一个标签和
                // 将要显示的标签找到了就可以了
                boolean findPrevious = false, findNext = false;
                for (MyLabel m : list) {
                    if (m.contains(p)) {
                        findNext = true;
                        if (m.getIsSelected()) {
                            findPrevious = true;
                        } else {
                            m.setSelected(true, b);
                        }
                    } else if (m.getIsSelected()) {
                        findPrevious = true;
                        m.setSelected(false, b);
                    }
                    if (findPrevious && findNext) {
                        return;
                    }
                }
            } else {
                MyLabel temp = null;
                for (MyLabel m : list) {
                    if (m.contains(p)) {
                        temp = m;
                    } else if (m.getIsSelected()) {
                        m.setSelected(false, b);
                    }
                }
                if (temp != null) {
                    temp.setSelected(true, b);
                }
            }
        }

    }

    private class JP4 extends JPanel {
        public JP4() {
            super(new BorderLayout());
            this.setPreferredSize(new Dimension(295, 20));
            this.setBackground(new Color(160, 185, 215));
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
            final JLabel jl = new JLabel("今天: " + sdf.format(new Date()));
            jl.setToolTipText("点击选择今天日期");
            this.add(jl, BorderLayout.CENTER);
            jl.addMouseListener(new MouseAdapter() {
                public void mouseEntered(MouseEvent me) {
                    jl.setCursor(new Cursor(Cursor.HAND_CURSOR));
                    jl.setForeground(Color.RED);
                }

                public void mouseExited(MouseEvent me) {
                    jl.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
                    jl.setForeground(Color.BLACK);
                }

                public void mousePressed(MouseEvent me) {
                    jl.setForeground(Color.WHITE);
                    select.setTime(new Date());
                    refresh();
                    commit();
                }

                public void mouseReleased(MouseEvent me) {
                    jl.setForeground(Color.BLACK);
                }
            });
        }
    }

    public static void main(String[] args) {
        final DateChooserDay mp = new DateChooserDay("yyyy-MM-dd");
        JFrame jf = new JFrame("日期选择器");
        jf.add(mp, BorderLayout.CENTER);
        jf.add(new JButton("点击下面可选择时间"), BorderLayout.NORTH);
        jf.setSize(WIDTH, HEIGHT);
        jf.setLocationRelativeTo(null);
        jf.setVisible(true);
        jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}