大家都知道NETBEANS呀，居然没有日期控件，![]()
捶子！我这个是网上的改编的，因为网上的是单独可以用的（就是你考下来呀，放到NETBEANS就能运行了），但一般的日期控件是要嵌在其它页面控件中用，比如这个控件要放在PANEL里面，单独用的就不能嵌。比较高手的说你改一改不就能用了吗（所以偶改了），为了方便那些实在很懒的Y们，看好了直接往上贴吧（注意里面的文件之间的引用啊，不然是会找不到的，你不会连这个也不会吧？！！不会算了![]()
，下面下面的下面会说的啦）。。![]()
效果图来一张：点击笑脸按钮出来选择日期框，选好了，日期就在文本框里面显示了。
![]()
下面上代码：![]()
二个文件DatePicker.java DateSelect.java，一个引用。。。
================================================================
DatePicker.java
package date;
import java.awt.*;
import java.awt.event.*;
import java.util.GregorianCalendar;
import java.util.Date;
import java.util.Calendar;
import java.text.DateFormat;
import java.text.FieldPosition;
import javax.swing.*;
import javax.swing.plaf.BorderUIResource;
import org.netbeans.lib.awtextra.AbsoluteConstraints;
import org.netbeans.lib.awtextra.AbsoluteLayout;
/**
*
* @author Administrator
*/
public class DatePicker extends JPanel {
private static final long serialVersionUID = 1L;
private static final int startX = 10;
private static final int startY = 60;
private static final Font smallFont = new Font("Dialog", Font.PLAIN, 10);
private static final Font largeFont = new Font("Dialog", Font.PLAIN, 12);
private static final Insets insets = new Insets(2, 2, 2, 2);
private static final Color highlight = new Color(255, 255, 204);
private static final Color white = new Color(255, 255, 255);
private static final Color gray = new Color(204, 204, 204);
private Component selectedDay = null;
private GregorianCalendar selectedDate = null;
private GregorianCalendar originalDate = null;
private boolean hideOnSelect = true;
private final JButton backButton = new JButton();
private final JLabel monthAndYear = new JLabel();
private final JButton forwardButton = new JButton();
private final JLabel[] dayHeadings = new JLabel[]{
new JLabel("日"),
new JLabel("一"),
new JLabel("二"),
new JLabel("三"),
new JLabel("四"),
new JLabel("五"),
new JLabel("六")
};
private final JLabel[][] daysInMonth = new JLabel[][]{
{new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel()
},
{new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel()
},
{new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel()
},
{new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel()
},
{new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel()
},
{new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel(),
new JLabel()
}
};
private final JButton todayButton = new JButton();
private final JButton cancelButton = new JButton();
public DatePicker() {
super();
selectedDate = getToday();
init();
}
public DatePicker(final Date initialDate) {
super();
if (null == initialDate) {
selectedDate = getToday();
} else {
(selectedDate = new GregorianCalendar()).setTime(initialDate);
}
originalDate = new GregorianCalendar(
selectedDate.get(Calendar.YEAR),
selectedDate.get(Calendar.MONTH),
selectedDate.get(Calendar.DATE));
init();
}
public boolean isHideOnSelect() {
return hideOnSelect;
}
public void setHideOnSelect(final boolean hideOnSelect) {
if (this.hideOnSelect != hideOnSelect) {
this.hideOnSelect = hideOnSelect;
initButtons(false);
}
}
public Date getDate() {
if (null != selectedDate) {
return selectedDate.getTime();
}
return null;
}
private void init() {
setLayout(new AbsoluteLayout());
this.setMinimumSize(new Dimension(161, 226));
this.setMaximumSize(getMinimumSize());
this.setPreferredSize(getMinimumSize());
this.setBorder(new BorderUIResource.EtchedBorderUIResource());
backButton.setFont(smallFont);
backButton.setText("<");
backButton.setMargin(insets);
backButton.setDefaultCapable(false);
backButton.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent evt) {
onBackClicked(evt);
}
});
add(backButton, new AbsoluteConstraints(10, 10, 20, 20));
monthAndYear.setFont(largeFont);
monthAndYear.setHorizontalAlignment(JTextField.CENTER);
monthAndYear.setText(formatDateText(selectedDate.getTime()));
add(monthAndYear, new AbsoluteConstraints(30, 10, 100, 20));
forwardButton.setFont(smallFont);
forwardButton.setText(">");
forwardButton.setMargin(insets);
forwardButton.setDefaultCapable(false);
forwardButton.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent evt) {
onForwardClicked(evt);
}
});
add(forwardButton, new AbsoluteConstraints(130, 10, 20, 20));
int x = startX;
for (int ii = 0; ii < dayHeadings.length; ii++) {
dayHeadings[ii].setOpaque(true);
dayHeadings[ii].setBackground(Color.LIGHT_GRAY);
dayHeadings[ii].setForeground(Color.WHITE);
dayHeadings[ii].setHorizontalAlignment(JLabel.CENTER);
add(dayHeadings[ii], new AbsoluteConstraints(x, 40, 21, 21));
x += 20;
}
x = startX;
int y = startY;
for (int ii = 0; ii < daysInMonth.length; ii++) {
for (int jj = 0; jj < daysInMonth[ii].length; jj++) {
daysInMonth[ii][jj].setOpaque(true);
daysInMonth[ii][jj].setBackground(white);
daysInMonth[ii][jj].setFont(smallFont);
daysInMonth[ii][jj].setHorizontalAlignment(JLabel.CENTER);
daysInMonth[ii][jj].setText("");
daysInMonth[ii][jj].addMouseListener(new MouseAdapter() {
public void mouseClicked(final MouseEvent evt) {
onDayClicked(evt);
}
});
add(daysInMonth[ii][jj], new AbsoluteConstraints(x, y, 21, 21));
x += 20;
}
x = startX;
y += 20;
}
initButtons(true);
calculateCalendar();
}
private void initButtons(final boolean firstTime) {
if (firstTime) {
final Dimension buttonSize = new Dimension(68, 24);
todayButton.setText("今天");
todayButton.setMargin(insets);
todayButton.setMaximumSize(buttonSize);
todayButton.setMinimumSize(buttonSize);
todayButton.setPreferredSize(buttonSize);
todayButton.setDefaultCapable(true);
todayButton.setSelected(true);
todayButton.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent evt) {
onToday(evt);
}
});
cancelButton.setText("取消");
cancelButton.setMargin(insets);
cancelButton.setMaximumSize(buttonSize);
cancelButton.setMinimumSize(buttonSize);
cancelButton.setPreferredSize(buttonSize);
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent evt) {
onCancel(evt);
}
});
} else {
this.remove(todayButton);
this.remove(cancelButton);
}
if (hideOnSelect) {
add(todayButton, new AbsoluteConstraints(25, 190, 52, -1));
add(cancelButton, new AbsoluteConstraints(87, 190, 52, -1));
} else {
add(todayButton, new AbsoluteConstraints(55, 190, 52, -1));
}
}
private void onToday(final java.awt.event.ActionEvent evt) {
selectedDate = getToday();
setVisible(!hideOnSelect);
if (isVisible()) {
monthAndYear.setText(formatDateText(selectedDate.getTime()));
calculateCalendar();
}
}
private void onCancel(final ActionEvent evt) {
selectedDate = originalDate;
setVisible(!hideOnSelect);
}
private void onForwardClicked(final java.awt.event.ActionEvent evt) {
final int day = selectedDate.get(Calendar.DATE);
selectedDate.set(Calendar.DATE, 1);
selectedDate.add(Calendar.MONTH, 1);
selectedDate.set(Calendar.DATE,
Math.min(day, calculateDaysInMonth(selectedDate)));
monthAndYear.setText(formatDateText(selectedDate.getTime()));
calculateCalendar();
}
private void onBackClicked(final java.awt.event.ActionEvent evt) {
final int day = selectedDate.get(Calendar.DATE);
selectedDate.set(Calendar.DATE, 1);
selectedDate.add(Calendar.MONTH, -1);
selectedDate.set(Calendar.DATE,
Math.min(day, calculateDaysInMonth(selectedDate)));
monthAndYear.setText(formatDateText(selectedDate.getTime()));
calculateCalendar();
}
private void onDayClicked(final java.awt.event.MouseEvent evt) {
final javax.swing.JLabel fld = (javax.swing.JLabel) evt.getSource();
if (!"".equals(fld.getText())) {
fld.setBackground(highlight);
selectedDay = fld;
selectedDate.set(
Calendar.DATE,
Integer.parseInt(fld.getText()));
setVisible(!hideOnSelect);
}
}
private static GregorianCalendar getToday() {
final GregorianCalendar gc = new GregorianCalendar();
gc.set(Calendar.HOUR_OF_DAY, 0);
gc.set(Calendar.MINUTE, 0);
gc.set(Calendar.SECOND, 0);
gc.set(Calendar.MILLISECOND, 0);
return gc;
}
private void calculateCalendar() {
if (null != selectedDay) {
selectedDay.setBackground(white);
selectedDay = null;
}
final GregorianCalendar c = new GregorianCalendar(
selectedDate.get(Calendar.YEAR),
selectedDate.get(Calendar.MONTH),
1);
final int maxDay = calculateDaysInMonth(c);
final int selectedDay = Math.min(maxDay, selectedDate.get(
Calendar.DATE));
int dow = c.get(Calendar.DAY_OF_WEEK);
for (int dd = 0; dd < dow; dd++) {
daysInMonth[0][dd].setText("");
}
int week;
do {
week = c.get(Calendar.WEEK_OF_MONTH);
dow = c.get(Calendar.DAY_OF_WEEK);
final JLabel fld = this.daysInMonth[week - 1][dow - 1];
fld.setText(Integer.toString(c.get(Calendar.DATE)));
if (selectedDay == c.get(Calendar.DATE)) {
fld.setBackground(highlight);
this.selectedDay = fld;
}
if (c.get(Calendar.DATE) >= maxDay) {
break;
}
c.add(Calendar.DATE, 1);
} while (c.get(Calendar.DATE) <= maxDay);
week--;
for (int ww = week; ww < daysInMonth.length; ww++) {
for (int dd = dow; dd < daysInMonth[ww].length; dd++) {
daysInMonth[ww][dd].setText("");
}
dow = 0;
}
c.set(Calendar.DATE, selectedDay);
selectedDate = c;
}
private static int calculateDaysInMonth(final Calendar c) {
int daysInMonth = 0;
switch (c.get(Calendar.MONTH)) {
case 0:
case 2:
case 4:
case 6:
case 7:
case 9:
case 11:
daysInMonth = 31;
break;
case 3:
case 5:
case 8:
case 10:
daysInMonth = 30;
break;
case 1:
final int year = c.get(Calendar.YEAR);
daysInMonth =
(0 == year % 1000) ? 29 : (0 == year % 100) ? 28 : (0 == year % 4) ? 29 : 28;
break;
}
return daysInMonth;
}
private static String formatDateText(final Date dt) {
final DateFormat df = DateFormat.getDateInstance(DateFormat.LONG);
final StringBuffer mm = new StringBuffer();
final StringBuffer yy = new StringBuffer();
final FieldPosition mmfp = new FieldPosition(DateFormat.MONTH_FIELD);
final FieldPosition yyfp = new FieldPosition(DateFormat.YEAR_FIELD);
df.format(dt, mm, mmfp);
df.format(dt, yy, yyfp);
return (mm.toString().substring(mmfp.getBeginIndex(), mmfp.getEndIndex()) +
"月 " + yy.toString().substring(yyfp.getBeginIndex(), yyfp.getEndIndex()) + "年");
}
}
=============================================================================
DateSelect.java
package date;
import java.awt.Point;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JTextField;
/*****************************
*日期组件的应用
*按钮接口
**************************/
public class DateSelect {
private JDialog dlg;
private DatePicker dp;
Point origin = new Point();
private JTextField datetext;
//接口setdatetext
public void setdatetext(JTextField text){
this.datetext=text;
}
public void onButtonClick(final java.awt.event.ActionEvent evt) {
if ("".equals(datetext.getText())) {
dp = new DatePicker();
} else {
dp = new DatePicker(stringToDate(datetext.getText()));
}
dp.addComponentListener(new Listener());
final Point p = datetext.getLocationOnScreen();
p.setLocation(p.getX(), p.getY() - 1 + datetext.getSize().getHeight());
dlg = new JDialog(new JFrame(), true);
dlg.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
origin.x = e.getX();
origin.y = e.getY();
}
});
dlg.addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
Point p = dlg.getLocation();
dlg.setLocation(p.x + e.getX() - origin.x, p.y + e.getY() - origin.y);
}
});
dlg.setLocation(p);
dlg.setResizable(false);
dlg.setUndecorated(true);
dlg.getContentPane().add(dp);
dlg.pack();
dlg.setVisible(true);
}
final class Listener extends ComponentAdapter {
public void componentHidden(final ComponentEvent evt) {
final Date dt = ((DatePicker) evt.getSource()).getDate();
if (null != dt) {
datetext.setText(dateToString(dt));
}
dlg.dispose();
}
}
public Date getDate() {
return stringToDate(datetext.getText());
}
public void setDate(Date date) {
String v = dateToString(date);
if (v == null) {
v = "";
}
datetext.setText(v);
}
private static String dateToString(final Date dt) {
if (null != dt) {
return DateFormat.getDateInstance(DateFormat.LONG).format(dt);
}
return null;
}
private static Date stringToDate(final String s) {
try {
return DateFormat.getDateInstance(DateFormat.LONG).parse(s);
} catch (ParseException e) {
return null;
}
}
}
==============================================================
上接口了(就是引用！)，这段是放在你要用到此控件的文件里面，文件得定义个textfield（datetext）,还有个button(datebutton)，会不？不会！！捶子！！你火星人？？
datebutton = new javax.swing.JButton();
datetext = new javax.swing.JTextField();
（如果你用GUI的话，你想在哪里放这个控件就象这样![]()
拖成一个左边一个右边就行了，NETBEAN会自己定义的，你不会问按钮在哪吧？按钮是笑脸那个，点了，就出现日期框，选完日期就在文本框里面显示日期。。。。倒啊，，如果想知道怎么把按钮变成想要的图，请直接返回百度！！不要问我雷人的问题！）
记得引入文件。。
import date.DateSelect;
以下的放在此文件的构造函数就行了（不明白什么是构造函数的请转页面，去百度看书！）
////设置TEXTFIELD属性：
datetext.setText("");
datetext.setEditable(false);
datetext.setBackground(new Color(255, 255, 255));
/////笑脸按钮加监听：
datebutton.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent evt) {
DateSelect ds=new DateSelect();
ds.setdatetext(datetext);
ds.onButtonClick(evt);
}
}
});
====================================================
试试能不能用吧，表说你不能用啊。。你没有把位置放对，怎么能用呢，表说里面有错啊，里面文件没有引入当然会有错啦。。。。两个文件放一个目录下，直接往上贴就行了，引用是要贴在你要放控件的页面代码的构造函数里的。表和我说好复杂，偶真想捶你们![]()
！！都方便到这地步了！要好好学习懂吗？
支持的顶啊！！！
