java将base64解析图片保存到本地。

将base64解析图片保存到本地的两个方法

    /**
     * base64转图片
     * @param base64str base64码
     * @param savePath 图片路径
     * @return
     */
    public static boolean GenerateImage(String base64str, String savePath) {
        //对字节数组字符串进行Base64解码并生成图片
        if (base64str == null) {
            return false;
        }
        BASE64Decoder decoder = new BASE64Decoder();
        try {
            //Base64解码
            byte[] b = decoder.decodeBuffer(base64str);
            for (int i = 0; i < b.length; ++i) {
                //调整异常数据
                if (b[i] < 0) {
                    b[i] += 256;
                }
            }
            //生成jpeg图片
            OutputStream out = new FileOutputStream(savePath);
            out.write(b);
            out.flush();
            out.close();
            return true;
        } catch (Exception e) {
            return false;
        }
    }

    /**
     * base64转图片
     * @param base64Code base64码
     */
    public static void convertBase64ToImage(String base64Code){
        BufferedImage image = null;
        byte[] imageByte = null;
        try {
            imageByte = DatatypeConverter.parseBase64Binary(base64Code);
            ByteArrayInputStream bis = new ByteArrayInputStream(imageByte);
            image = ImageIO.read(new ByteArrayInputStream(imageByte));
            bis.close();
            File outputfile = new File("d:\sealImg.jpg");
            ImageIO.write(image, "jpg", outputfile);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }