如何实现JDatePicker [英] How do I implement JDatePicker

问题描述

我正在使用JDatePicker的最新版本1.3.4。如何实现？

我收到编译器错误：构造函数JDatePanelImpl（UtilDateModel）未定义。建议的修复方法是：添加参数以匹配JDatePanelImpl（DateModel，Properties）。应该作为属性参数传递什么？

  import javax.swing。*; 
 import java.awt。*; 
 import java.awt.event。*; 
 import java.sql。*; 
 import java.util。*; 
 import java.util.Calendar; 
 import java.util.Date 
 import org.jdatepicker.impl。*; 
 import org.jdatepicker.util。*; 
 import org.jdatepicker。*; 
 
 // import org.jdatepicker.graphics。*; 
 class date2 {
 
 void GUI（）{
 JFrame f1 = new JFrame（）; 
 f1.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）; 
 f1.setSize（300，300）; 
 f1.setVisible（true）; 
 
容器conn = f1.getContentPane（）; 
 conn.setLayout（null）; 
 
 UtilDateModel model = new UtilDateModel（）; 
 //model.setDate(20,04,2014）; 
 JDatePanelImpl datePanel = new JDatePanelImpl（model）; 
 JDatePickerImpl datePicker = new JDatePickerImpl（datePanel）; 
 f1.add（datePicker）; 
 
} 
 
} 
  

... Runner ...

  class testDate2 {
 
 public void main（String [] args）{
 
 date2 d1 = new date2（）; 
 d1.GUI（）; 
 
} 
 
} 
  

解决方案假设你正在使用1.3.4，那么构造函数的要求已经改变了...

  UtilDateModel模型= new UtilDateModel（）; 
 //model.setDate(20,04,2014）; 
 //需要这个... 
属性p = new Properties（）; 
 p.put（text.today，今天）; 
 p.put（text.month，月）; 
 p.put（text.year，Year）; 
 JDatePanelImpl datePanel = new JDatePanelImpl（model，p）; 
 //不知道格式化程序，但是它是... 
 JDatePickerImpl datePicker = new JDatePickerImpl（datePanel，new DateLabelFormatter（））; 
  

使用这个 AbstractFormatter ...

  public class DateLabelFormatter extends AbstractFormatter {
 
 private String datePattern =yyyy-MM-dd; 
 private SimpleDateFormat dateFormatter = new SimpleDateFormat（datePattern）; 
 
 @Override 
 public Object stringToValue（String text）throws ParseException {
 return dateFormatter.parseObject（text）; 
} 
 
 @Override 
 public String valueToString（Object value）throws ParseException {
 if（value！= null）{
日历cal = ）值
 return dateFormatter.format（cal.getTime（））; 
} 
 
 return; 
} 
 
} 
  

I am working with the latest release 1.3.4 of JDatePicker. How should it be implemented?

I get a compiler error: The constructor JDatePanelImpl(UtilDateModel) is undefined. The suggested fix is to: add argument to match JDatePanelImpl(DateModel, Properties). What should be passed in as the properties argument?

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import java.util.*;
import java.util.Calendar;
import java.util.Date;
import org.jdatepicker.impl.*;
import org.jdatepicker.util.*;
import org.jdatepicker.*;

    //import org.jdatepicker.graphics.*;
class date2 {

    void GUI() {
        JFrame f1 = new JFrame();
        f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f1.setSize(300, 300);
        f1.setVisible(true);

        Container conn = f1.getContentPane();
        conn.setLayout(null);

        UtilDateModel model = new UtilDateModel();
        //model.setDate(20,04,2014);
        JDatePanelImpl datePanel = new JDatePanelImpl(model);
        JDatePickerImpl datePicker = new JDatePickerImpl(datePanel);
        f1.add(datePicker);

    }

}

...Runner...

class testDate2 {

    public void main(String[] args) {

        date2 d1 = new date2();
        d1.GUI();

    }

}

解决方案

Assuming you are using 1.3.4, then the constructor requirements have changed...

UtilDateModel model = new UtilDateModel();
//model.setDate(20,04,2014);
// Need this...
Properties p = new Properties();
p.put("text.today", "Today");
p.put("text.month", "Month");
p.put("text.year", "Year");
JDatePanelImpl datePanel = new JDatePanelImpl(model, p);
// Don't know about the formatter, but there it is...
JDatePickerImpl datePicker = new JDatePickerImpl(datePanel, new DateLabelFormatter());

Using this AbstractFormatter...

public class DateLabelFormatter extends AbstractFormatter {

    private String datePattern = "yyyy-MM-dd";
    private SimpleDateFormat dateFormatter = new SimpleDateFormat(datePattern);

    @Override
    public Object stringToValue(String text) throws ParseException {
        return dateFormatter.parseObject(text);
    }

    @Override
    public String valueToString(Object value) throws ParseException {
        if (value != null) {
            Calendar cal = (Calendar) value;
            return dateFormatter.format(cal.getTime());
        }

        return "";
    }

}

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