请问swing中有没有选日期的组件?

Question

请问swing中有没有选日期的组件?

Answer 1

给你一个Swing hacks里面的例子：
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;public class MoveMouseListener implements MouseListener, MouseMotionListener {
    JComponent target;
    Point start_drag;
    Point start_loc;    public MoveMouseListener(JComponent target) {
        this.target = target;
    }    public static JFrame getFrame(Container target) {
        if(target instanceof JFrame) {
            return (JFrame)target;
        }
        return getFrame(target.getParent());
    }    Point getScreenLocation(MouseEvent e) {
        Point cursor = e.getPoint();
        Point target_location = this.target.getLocationOnScreen();
        return new Point(
            (int)(target_location.getX()+cursor.getX()),
            (int)(target_location.getY()+cursor.getY()));
    }
    public void mouseClicked(MouseEvent e) {}
    public void mouseEntered(MouseEvent e) {}
    public void mouseExited(MouseEvent e) {}
    public void mousePressed(MouseEvent e) {
        this.start_drag = this.getScreenLocation(e);
        this.start_loc = this.getFrame(this.target).getLocation();
    }    public void mouseReleased(MouseEvent e) {}    public void mouseDragged(MouseEvent e) {
        Point current = this.getScreenLocation(e);
        Point offset = new Point(
            (int)current.getX()-(int)start_drag.getX(),
            (int)current.getY()-(int)start_drag.getY());
        JFrame frame = this.getFrame(target);
        Point new_location = new Point(
            (int)(this.start_loc.getX()+offset.getX()),
            (int)(this.start_loc.getY()+offset.getY()));
        frame.setLocation(new_location);
    }
    public void mouseMoved(MouseEvent e) {}
}

Answer 2

import javax.swing.*;
import java.awt.*;
import java.util.*;
import java.text.SimpleDateFormat;
import java.awt.event.*;public class CalendarHack extends JPanel {
    protected Image background, highlight, day_img;
    protected SimpleDateFormat month = new SimpleDateFormat("MMMM");
    protected SimpleDateFormat year = new SimpleDateFormat("yyyy");
    protected SimpleDateFormat day = new SimpleDateFormat("d");
    protected Date date = new Date();
    
    public void setDate(Date date) {
        this.date = date;
    }
    public CalendarHack() {
        background = new ImageIcon("calendar.png").getImage();
        highlight = new ImageIcon("highlight.png").getImage();
        day_img = new ImageIcon("day.png").getImage();
        this.setPreferredSize(new Dimension(300,280));
    }
    
    public void paintComponent(Graphics g) {
        ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
        g.drawImage(background,0,0,null);
        g.setColor(Color.black);
        g.setFont(new Font("SansSerif",Font.PLAIN,18));
        g.drawString(month.format(date),34,36);
        g.setColor(Color.white);
        g.drawString(year.format(date),235,36);
        
        Calendar today = Calendar.getInstance();
        today.setTime(date);
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.set(Calendar.DATE,1);
        cal.add(Calendar.DATE,-cal.get(Calendar.DAY_OF_WEEK)+1);
        for(int week = 0; week < 6; week++) {
            for(int d = 0; d < 7; d++) {
                Image img = day_img;
                Color col = Color.black;
                // only draw if it's actually in this month
                if(cal.get(Calendar.MONTH) == today.get(Calendar.MONTH)) {
                    if(cal.equals(today)) { img = highlight; col = Color.white; }
                    g.drawImage(img,d*30+46,week*29+81,null);
                    g.drawString(day.format(cal.getTime()),d*30+46+4,week*29+81+20);
                }
                cal.add(Calendar.DATE,+1);
            }
        }
    }    public static void main(String[] args) {
        JFrame frame = new JFrame();
        CalendarHack ch = new CalendarHack();
        ch.setDate(new Date());
        frame.getContentPane().add(ch);
        frame.setUndecorated(true);
        
        MoveMouseListener mml = new MoveMouseListener(ch);
        ch.addMouseListener(mml);
        ch.addMouseMotionListener(mml);        
        frame.pack();
        frame.setVisible(true);
    }
}

Answer 3

在网上下载过一个openswing，里面的东西比较全
比较好用，可以在网上下载一个

Answer 4

SpinnerDateModel model2 = new SpinnerDateModel();
    model2.setCalendarField(Calendar.WEEK_OF_MONTH);
    JSpinner spinner2 = new JSpinner(model2);
    JSpinner.DateEditor editor2 = new JSpinner.DateEditor(
      spinner2, "MMMMM dd, yyyy");
    spinner2.setEditor(editor2);DateFormat format = 
      new SimpleDateFormat("yyyy--MMMM--dd");
    DateFormatter df = new DateFormatter(format);
    JFormattedTextField ftf1 = new 
      JFormattedTextField(df);
    ftf1.setValue(new Date());