Swing实现日期选择器datepicker（带时分秒选择功能）

最新推荐文章于 2025-06-29 10:03:46 发布

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最新推荐文章于 2025-06-29 10:03:46 发布 · 7.1k 阅读

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这个博客介绍了一个使用Java Swing编写的日期时间选择器组件`DateSelector`。这个组件不仅可以选择日期，还可以选择时、分、秒。它包含一个`DateChooser`对话框，用户可以在这里设置年、月、日、小时、分钟和秒。通过点击按钮，用户可以从当前时间开始调整所需的时间。博客还提供了一个`Test`类来展示如何在应用中使用`DateSelector`。

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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 backGro