Java——图片读取与存储

 @Override
    public Image myWrite(Image image, String filePath) throws IOException {
        if (image == null) {
            throw new IOException("Image is null!");
        }

        // create a file
        File imgFile = new File(filePath + ".bmp");
        BufferedImage bmp = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_RGB);
        Graphics2D graph = bmp.createGraphics();

        // call the Graphics drawImage method
        graph.drawImage(image, 0, 0, null);

        // write to this file
        ImageIO.write(bmp, "bmp", imgFile);
        // read file
        BufferedImage readbmp = ImageIO.read(imgFile);
        return readbmp;
    }