if(fileName.toLowerCase().endsWith(".gif")){//由于头像上传支持JPG、JPEG、BMP、GIF、PNG格式图片.而商汤人脸设备仅支持JPG、JPEG、BMP、PNG,故如图片为GIF格式需要转换
         fileParams.put("avatarFile", api.GifToJpg(avatar_file));
   }else{
         fileParams.put("avatarFile", api.getBytes(avatar_file));
   }

/**
     * 将文件转换为byte二进制流
     * @param f
     * @return
     */
    public static byte[] getBytes(File f) {
        try {
            InputStream in = new FileInputStream(f);
            ByteArrayOutputStream out = new ByteArrayOutputStream(1024);
            byte[] b = new byte[1024];
            int n;
            while ((n = in.read(b)) != -1)
                out.write(b, 0, n);
            in.close();
            out.close();
            return out.toByteArray();
        } catch (IOException e) {
            logger.error("***请设置文件路径***");
            e.printStackTrace();
        }
        return null;
    }


    /**
     * 将gif格式图片转换为jpg格式文件，并直接返回byte二进制流
     * @param file
     * @return
     */
    public static byte[] GifToJpg(File file){
        BufferedImage bufferedImage;
        ByteArrayOutputStream out = new ByteArrayOutputStream(1024);
        try {
            // read image file
            bufferedImage = ImageIO.read(file);
            // create a blank, RGB, same width and height, and a white
            BufferedImage newBufferedImage = new BufferedImage(
                    bufferedImage.getWidth(), bufferedImage.getHeight(),
                    BufferedImage.TYPE_INT_RGB);
            // TYPE_INT_RGB:创建一个RBG图像，24位深度，成功将32位图转化成24位
            newBufferedImage.createGraphics().drawImage(bufferedImage, 0, 0,Color.WHITE, null);
            // write to jpeg file
            ImageIO.write(newBufferedImage, "jpg",out);//转换输出到二进制数组流
            //ImageIO.write(newBufferedImage, "jpg",new File("c:\java.jpg"));//转换输出到文件
            return out.toByteArray();//二进制流

        } catch (IOException e) {
            logger.error("***GifToJpg方法报错***");
            e.printStackTrace();
        }
        return null;
    }