custombean.java

JSP与STRUT开发的酒店管理系统,请各位试用

import java.awt.*; 
import java.io.Serializable;
import java.beans.*;
 
public class CustomBean extends Canvas implements Serializable 
{ 
//定义bound属性	
private Color color=Color.red;

private PropertyChangeSupport changes = new PropertyChangeSupport(this);

//Constructor sets inherited properties 
public CustomBean() 
{ 
setSize(100,100); 
setBackground(color); 
} 
public Color getColor()
{
	return color;
}
public void setColor(Color newColor)
{
Color oldColor = color; 
color = newColor; 
changes.firePropertyChange("color", oldColor, newColor); 
repaint();
}
    public void paint(Graphics g) 
{
	setBackground(color);
	String tempColor="red";
	if(color==Color.red)
		tempColor="red";
	else if(color==Color.green)
		tempColor="green";
	Font f1 = new Font("Monospaced",Font.BOLD,20);
	g.setFont(f1);
	g.drawString(tempColor,20,60);
}

public void addPropertyChangeListener(PropertyChangeListener l) 
{ 
changes.addPropertyChangeListener(l); 
} 
    
public void removePropertyChangeListener(PropertyChangeListener l)
{ 
changes.removePropertyChangeListener(l); 
} 

}