BufferedImage --- base64(互相转换)

/**
     * BufferedImage 编码转换为 base64
     * @param bufferedImage
     * @return
     */
    private static String BufferedImageToBase64(BufferedImage bufferedImage) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();//io流
        try {
            ImageIO.write(bufferedImage, "png", baos);//写入流中
        } catch (IOException e) {
            e.printStackTrace();
        }
        byte[] bytes = baos.toByteArray();//转换成字节
        BASE64Encoder encoder = new BASE64Encoder();
        String png_base64 = encoder.encodeBuffer(bytes).trim();//转换成base64串
        png_base64 = png_base64.replaceAll("
", "").replaceAll("
", "");//删除 

        System.out.println("值为：" + "data:image/jpg;base64," + png_base64);
        return "data:image/jpg;base64," + png_base64;
    }

    /**
     * base64 编码转换为 BufferedImage
     * @param base64
     * @return
     */
    private  static BufferedImage base64ToBufferedImage(String base64) {
        BASE64Decoder decoder = new sun.misc.BASE64Decoder();
        try {
            byte[] bytes1 = decoder.decodeBuffer(base64);
            ByteArrayInputStream bais = new ByteArrayInputStream(bytes1);
            return ImageIO.read(bais);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }