ImageIcon怎么转换为BufferedImage或RenderedImage 

Question

ImageIcon icon = .......;
        java.awt.image.BufferedImage buf = ..............;
        java.awt.Graphics2D g2d = buf.createGraphics();
        g2d.drawImage(icon.getImage(), .........)

Answer 1

to  Acylas(Acylas) 还是不知道怎么能转换的，能不能写出从Image得到BufferedImage的代码来

Answer 2

给个程序试试
    public static BufferedImage imageToBufferedImage(Image image) {
//        InputStream imageIn = new FileInputStream(new File(imageFile));
//        JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(imageIn);
//        BufferedImage image = decoder.decodeAsBufferedImage();
        try {
            Frame frame = new Frame(); 
            frame.addNotify(); 
            MediaTracker mt = new MediaTracker(frame);// frame acts as an ImageObserver
            mt.addImage(image, 0);
            mt.waitForAll();
            int w = image.getWidth(frame);
            int h = image.getHeight(frame);
            BufferedImage buf = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
            Graphics gc = buf.createGraphics();
            gc.drawImage(image,0,0,frame);
            return buf;
        }
        catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }