输出视频文件命名加上UUID和YYYYMMDD日期

private static SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
private static SimpleDateFormat sd = new SimpleDateFormat("yyyy-MM-dd");
private static String sysdate;
private static String prepareLocalVideoUrl() {
        sysdate = sdf.format(new Date());        //sdf格式的日期，
        return VideoConstants.VIDEO_CAPTURE_PATH + sysdate;    //一个常量地址加上一个日期格式
}

 String localFilePath = prepareLocalVideoUrl();
            String fileName = Tools.getUUID() + file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
            videoResult.setVideoUrl(localFilePath + "/" + fileName);