Swing实现日期选择器datepicker（带时分秒选择功能）

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DateSelector.java

package Test;

import java.util.Date;
import java.util.Calendar;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.text.ParseException;
import java.awt.Color;
import java.awt.Font;
import java.awt.Point;
import java.awt.Dimension;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Frame;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent; //import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.JSpinner;
import javax.swing.JSpinner.NumberEditor;
import javax.swing.SpinnerNumberModel;
import javax.swing.SwingUtilities;
import javax.swing.SwingConstants;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;
import javax.swing.border.LineBorder;

public class DateSelector extends JButton {

private DateChooser dateChooser = null;

private String preLabel = "";

public DateSelector() {
this(getNowDate());
}

public DateSelector(SimpleDateFormat df, String dateString) {
this();
setText(df, dateString);
}

public DateSelector(Date date) {
this("", date);
}

public DateSelector(String preLabel, Date date) {
if (preLabel != null)
this.preLabel = preLabel;
setDate(date);
setBorder(null);
setCursor(new Cursor(Cursor.HAND_CURSOR));
super.addActionListener(new ActionListener() {
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年MM月dd日 HH时mm分ss秒");
}

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 {
return getDefaultDateFormat().parse(dateString);
} catch (ParseException e) {
return getNowDate();
}

}

// 覆盖父类的方法使之无效
public void addActionListener(ActionListener listener) {
}

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 = 200; // 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.blue; // 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;
JSpinner hourSpin;
JSpinner minuteSpin;
JSpinner secondSpin;
JButton[][] daysButton = new JButton[6][7];

DateChooser() {

setLayout(new BorderLayout());
setBorder(new LineBorder(backGroundColor, 2));
setBackground(backGroundColor);

/*上中下布局*/
JPanel topYearAndMonth = createYearAndMonthPanal();
add(topYearAndMonth, BorderLayout.NORTH);
JPanel centerWeekAndDay = createWeekAndDayPanal();
add(centerWeekAndDay, BorderLayout.CENTER);
JPanel southMinAndSec = createMinuteAndsecondPanal();
add(southMinAndSec, BorderLayout.SOUTH);
}

private JPanel createYearAndMonthPanal() {
Calendar c = getCalendar();
int currentYear = c.get(Calendar.YEAR);//年
int currentMonth = c.get(Calendar.MONTH) + 1;//月

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);

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;
}

private JPanel createMinuteAndsecondPanal() {
Calendar c = getCalendar();

int currentHour = c.get(Calendar.HOUR_OF_DAY);//时
int currentMin = c.get(Calendar.MINUTE);//分
int currentSec = c.get(Calendar.SECOND);//秒

JPanel result = new JPanel();
result.setLayout(new FlowLayout());
result.setBackground(controlLineColor);

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(currentMin, 0, 59, 1));
minuteSpin.setPreferredSize(new Dimension(35, 20));
minuteSpin.setName("Minute");
minuteSpin.addChangeListener(this);
result.add(minuteSpin);

JLabel minuteLabel = new JLabel("分");
minuteLabel.setForeground(controlTextColor);
result.add(minuteLabel);

secondSpin = new JSpinner(new SpinnerNumberModel(currentSec, 0, 59,1));
secondSpin.setPreferredSize(new Dimension(35, 20));
secondSpin.setName("Second");
secondSpin.addChangeListener(this);
result.add(secondSpin);

JLabel secondLabel = new JLabel("秒");
secondLabel.setForeground(controlTextColor);
result.add(secondLabel);

return result;
}

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(DateSelector.this);
if (dialog == null || dialog.getOwner() != owner)
dialog = createDialog(owner);
dialog.setLocation(getAppropriateLocation(owner, position));
flushWeekAndDay();
dialog.show();
}

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 getSelectedMinute() {
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);
}

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;
}
else if(source.getName().equals("Minute")){
c.set(Calendar.MINUTE, getSelectedMinute());
setDate(c.getTime());
return;
}
else 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
// (source.getName().equals("Month"))
c.set(Calendar.MONTH, getSelectedMonth() - 1);
setDate(c.getTime());
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 c = getCalendar();
c.set(Calendar.DAY_OF_MONTH, newDay);
setDate(c.getTime());
}

}

}

=============================================================================

Test.java

package Test;

import java.awt.BorderLayout;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JButton;

public class Test extends JFrame {

private JPanel contentPane;

public static void main(String[] args) {
Test frame = new Test();
frame.setVisible(true);
}

public Test() {
setBounds(100, 100, 350, 200);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);

JButton button = new DateSelector();
contentPane.add(button, BorderLayout.CENTER);
}

}

========================================================================================================

效果图如下：

单击该button后进入日期选择器

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