最近在做一个Java Swing的小程序，试了一下Bean Binding，需要用到的lib有两个，appframework-1.03.jar和beanbind-1.2.1.jar. 完整代码如下：

Entrance.java

package main;

import swing.MainFrame;

public class Entrance {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
MainFrame mf = new MainFrame();
mf.setup();
}
}

Entity.java

package bean;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;

public class Entity {
private String inputtext;

private PropertyChangeSupport changeSupport=new PropertyChangeSupport(this);
public String getInputtext() {
return inputtext;
}

public void setInputtext(String inputtext) {
String oldText=this.inputtext;
this.inputtext = inputtext;
changeSupport.firePropertyChange("inputtext", oldText, inputtext);

}

public void addPropertyChangeListener(PropertyChangeListener listener){
changeSupport.addPropertyChangeListener(listener);
}

public void removePropertyChangeListener(PropertyChangeListener listener){
changeSupport.removePropertyChangeListener(listener);
}
}

MainFrame.java

package swing;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;

public class MainFrame {
private JFrame frame;
public void setup(){
frame=new JFrame();
frame.setPreferredSize(new Dimension(600,400));
frame.getContentPane().add(new MainWindow().createPanel(),BorderLayout.CENTER);
frame.setVisible(true);
frame.addWindowListener(new windowEventHandler());
}
class windowEventHandler extends WindowAdapter{
public void windowClosing(WindowEvent e){
System.out.println("Exit");
System.exit(0);
}
}
}

MainWindow.java

package swing;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.jdesktop.beansbinding.AutoBinding;
import org.jdesktop.beansbinding.BeanProperty;
import org.jdesktop.beansbinding.Bindings;
import org.jdesktop.beansbinding.AutoBinding.UpdateStrategy;

import bean.Entity;

public class MainWindow implements ActionListener {
private JPanel mainPanel;
private JTextField textField;
private JButton button;
public final static Entity entity = new Entity();

public JPanel createPanel() {
mainPanel = new JPanel();
mainPanel.setLayout(new BorderLayout());
mainPanel.setPreferredSize(new Dimension(300, 200));
textField = new JTextField();

BeanProperty inputtextProperty = BeanProperty
.create("inputtext");
BeanProperty textProperty = BeanProperty
.create("text");

/* From java bean to swing component */
AutoBinding
binding1=Bindings.createAutoBinding(UpdateStrategy.READ_WRITE,
entity, inputtextProperty, textField, textProperty);

/* From swing component to java bean */
//AutoBinding binding2 = Bindings
// .createAutoBinding(UpdateStrategy.READ_WRITE, textField,
// textProperty, entity, inputtextProperty);
binding1.bind();
//binding2.bind();
mainPanel.add(textField, BorderLayout.CENTER);
button = new JButton("Change Text");
button.addActionListener(this);