日期:2014-05-20  浏览次数:20773 次

高手看看错在哪里了?
报错:Exception in thread "main" java.lang.NoSuchMethodError: com.wwe.w96.ShadePanel.<init>(Ljava/awt/Image;)V
at com.wwe.w96.AutoImageSizeByForm.<init>(AutoImageSizeByForm.java:14)
at com.wwe.w96.AutoImageSizeByForm.main(AutoImageSizeByForm.java:22)
就是 ShadePanel contentPanel = new ShadePanel(Toolkit.getDefaultToolkit().getImage(getClass().getResource("psb.jpeg")));这一句

package com.wwe.w96;

import java.awt.*;
import javax.swing.*;

public class AutoImageSizeByForm extends JFrame{



public AutoImageSizeByForm(){

setTitle("AutoImageSizeByForm");
setBounds(100,100,450,300);
ShadePanel contentPanel = new ShadePanel(Toolkit.getDefaultToolkit().getImage(getClass().getResource("psb.jpeg")));
//contentPanel.setImage();
getContentPane().add(contentPanel,BorderLayout.CENTER);
setVisible(true);

}

public static void main(String[]args){
AutoImageSizeByForm application = new AutoImageSizeByForm();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

}

class ShadePanel extends JPanel{

Image image;

public ShadePanel(Image image){
this.image = image;
}

public void paintComponent(Graphics g){

if(image!=null){
int width = getWidth();
int height = getHeight();
g.drawImage(image, 0, 0, width, height, this);
}
super.paintComponent(g);
}

}


------解决方案--------------------
修改了一下,在我的机器能正常显示
Java code
package com.wwe.w96;

import java.awt.Graphics;
import java.awt.Image;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class AutoImageSizeByForm extends JFrame {

    public AutoImageSizeByForm() {

        setTitle("AutoImageSizeByForm");
        setBounds(100, 100, 450, 300);
        Image img = new ImageIcon("psb.jpeg").getImage();
        ShadePanel contentPanel = new ShadePanel(img);

        this.add(contentPanel);
        setVisible(true);

    }

    public static void main(String[] args) {
        AutoImageSizeByForm application = new AutoImageSizeByForm();
        application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

}

class ShadePanel extends JPanel {

    Image image;

    public ShadePanel(Image image) {
        this.image = image;
    }

    public void paint(Graphics g) {
        super.paint(g);
        
        if (image != null) {

            int width = getWidth();
            int height = getHeight();
            g.drawImage(image, 0, 0, width, height, this);
            
        }

    }

}