控件
格式化输入日期时间控件

可以用JieFormattedDateBox box = new JieFormattedDateBox("yyyy年MM月dd日HH点mm分ss秒");输入

也可以用JieFormattedDateBox box = new JieFormattedDateBox("HH:mm:ss");来输入时间

还可以这样用JSpinner spinner = new JSpinner();JieFormattedDateBox fdb = new JieFormattedDateBox(format);spinner.setModel(fdb);spinner.setEditor(fdb);



/////////////////////////////////////////////////package org.jie.ui.formattedbox;

import java.sql.Timestamp;import java.text.SimpleDateFormat;

import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import javax.swing.JFormattedTextField;import javax.swing.SpinnerModel;import javax.swing.SwingConstants;import javax.swing.SwingUtilities;import javax.swing.event.ChangeListener;import javax.swing.event.DocumentEvent;import javax.swing.event.DocumentListener;import javax.swing.text.DefaultFormatterFactory;import javax.swing.text.MaskFormatter;

public class JieFormattedDateBox extends JFormattedTextField implements SpinnerModel{

    private String format;    private SimpleDateFormat timeFormat;    private Timestamp time;

    public void setTime(Timestamp time){      if(time != null)      setValue(time);    }    public Timestamp getTime(){      return time;    }

  public static String replace(String src,String replaceSrc,String replaceWith){    if(src == null) return null;    StringBuffer sb = new StringBuffer();    int start = 0;    int end = src.indexOf(replaceSrc);    while(end >= 0){      sb.append(src.substring(start,end));      start = end+replaceSrc.length();      end = src.indexOf(replaceSrc,start);      sb.append(replaceWith);    }    sb.append(src.substring(start));    return sb.toString();  }

    public JieFormattedDateBox(String format){        super();        this.format = format;        timeFormat = new SimpleDateFormat(format);        time = new Timestamp(System.currentTimeMillis());

        try{            String mask = format;            for(int i=0;i<alais.length;i++){                mask = replace(mask,alais[i],formats[i]);            }            MaskFormatter mf = new MaskFormatter(mask);            mf.setPlaceholderCharacter('_');            setFormatterFactory(new DefaultFormatterFactory(mf));        }catch(Exception e){            e.printStackTrace();        }

        setText(timeFormat.format(time));        this.getDocument().addDocumentListener(new DocumentListener(){            public void insertUpdate(DocumentEvent e){                checkTime();            }            public void removeUpdate(DocumentEvent e){                checkTime();            }            public void changedUpdate(DocumentEvent e){}        });        this.setHorizontalAlignment(SwingConstants.RIGHT);        this.addFocusListener(new FocusListener(){            public void focusGained(FocusEvent e){}            public void focusLost(FocusEvent e){                setValue(time);            }        });    }

    void checkTime(){        try{            String text = getText();            if(text == null || text.equals(""))                return;            time = new Timestamp(timeFormat.parse(text).getTime());        }catch(Exception ex){            try{                SwingUtilities.invokeLater(new Runnable() {                    public void run() {                        setValue(time);                    }                });            }catch(Exception e){}        }

    }



    public Object getValue(){        return this.getText();    }    public void setValue(Object value){        time = (Timestamp)value;        int index = this.getCaretPosition();        if(time == null){          this.setText("");        }else          this.setText(timeFormat.format(time));        this.setCaretPosition(index);//keep Caret Position    }    public Object getNextValue(){        return new Timestamp(time.getTime()+getIncrease(this.getCaretPosition(),format,time));    }    public  Object getPreviousValue(){        return new Timestamp(time.getTime()-getDecrease(this.getCaretPosition(),format,time));    }    public void addChangeListener(ChangeListener l){}    public void removeChangeListener(ChangeListener l){}

    static String[] alais = {"yyyy","MM","dd","HH","hh","mm","ss"};    static String[] formats = {"####","##","##","##","##","##","##"};    static long[] times = {0,0,86400000,3600000,3600000,60000,1000};    public static final SimpleDateFormat fullTimeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    public static long getDecrease(int caret,String format,Timestamp time){        if(testAlias(format,caret,0)){            try{                String timeStr = (Integer.parseInt(new SimpleDateFormat("yyyy").format(time)) - 1)                                 + "-" + new SimpleDateFormat("MM-dd HH:mm:ss").format(time);                return time.getTime() - fullTimeFormat.parse(timeStr).getTime();            }catch(Exception e){                return 1000;            }        }        else if(testAlias(format,caret,1)){            try{                SimpleDateFormat ym = new SimpleDateFormat("yyyy-MM");                long thisMonth = ym.parse(ym.format(time)).getTime();                long lastMonth = ym.parse(ym.format(new Timestamp(thisMonth-2*times[2]))).getTime();

                int days = (int)((thisMonth-lastMonth)/times[2]);                int thisDays = Integer.parseInt(new SimpleDateFormat("dd").format(time));                return (thisMonth-lastMonth)+(((thisDays > days)?(thisDays-days):0)*times[2]);            }catch(Exception e){                return 1000;            }        }        for(int i=2;i<alais.length;i++){            if(testAlias(format,caret,i)){                return times[i];            }        }        return 1000;    }

    public static long getIncrease(int caret,String format,Timestamp time){        if(testAlias(format,caret,0)){            try{                String timeStr = (Integer.parseInt(new SimpleDateFormat("yyyy").format(time)) + 1)                                 + "-" + new SimpleDateFormat("MM-dd HH:mm:ss").format(time);                return fullTimeFormat.parse(timeStr).getTime() - time.getTime();            }catch(Exception e){                return 1000;            }        }        else if(testAlias(format,caret,1)){            try{                SimpleDateFormat ym = new SimpleDateFormat("yyyy-MM");                long thisMonth = ym.parse(ym.format(time)).getTime();                long nextMonth = ym.parse(ym.format(new Timestamp(thisMonth+31*times[2]))).getTime();                long nextNextMonth = ym.parse(ym.format(new Timestamp(nextMonth+31*times[2]))).getTime();

                int days = (int)((nextNextMonth-nextMonth)/times[2]);                int thisDays = Integer.parseInt(new SimpleDateFormat("dd").format(time));                return (nextMonth-thisMonth)-(((thisDays > days)?(thisDays-days):0)*times[2]);            }catch(Exception e){                return 1000;            }        }        for(int i=2;i<alais.length;i++){            if(testAlias(format,caret,i)){                return times[i];            }        }        return 1000;    }

    private static boolean testAlias(String format,int caret,int index){        for(int i=format.indexOf(alais[index]);i>=0;i=format.indexOf(alais[index],i+1)){            if(caret >= i && caret <= i+alais[index].length())                return true;        }        return false;    }

}