response.setCharacterEncoding("UTF-8");
        response.setContentType("image/jpeg");
        try {
            OutputStream out = response.getOutputStream();

            byte[] bytes = *****;//获取图片字节数组
            ByteArrayInputStream in = new ByteArrayInputStream(bytes);

            BufferedImage image = ImageIO.read(in);
            int h = image.getHeight();
            int w=image.getWidth();

            BufferedImage inputbig = new BufferedImage(w, h,BufferedImage.TYPE_INT_BGR);
            inputbig.getGraphics().drawImage(image, 0, 0, w, h, null); //画图

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(baos);

            ImageIO.write(inputbig, "jpg", imageOutputStream);
            out.write(baos.toByteArray());
            out.flush();
        } catch (Exception e) {
            e.printStackTrace();
            log.warn("e: " + e.getMessage());
        }