java原生的Graphics2D_背景图上添加图片

1.初始化

public void init(){
   private String backgroundImgPath="背景图片位置";
   private String contentImgPath=“内容图片位置”;
}

2.背景图上添加图片

public void step1() {
        try {
            BufferedImage img = new BufferedImage(750, 1333, BufferedImage.TYPE_INT_RGB);

            BufferedImage bg = ImageIO.read(new File(backgroundImgPath));
            BufferedImage content = ImageIO.read(new File(contentImgPath));

            // 中间内容框画到背景图上
            Graphics g = img.getGraphics();
            g.drawImage(bg.getScaledInstance(750, 1333, Image.SCALE_DEFAULT), 0, 0, null);
            g.drawImage(content.getScaledInstance(750, 1333, Image.SCALE_DEFAULT), 0, 0, null);

            g.dispose();
            ImageIO.write(img, "png", new File("文件输出路径"));
            System.out.println("生成成功！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }