java base64视频存到本地或服务器

 String video = "";//base64编码的视频
//拼接路径
        String filePath = PathUtil.getImgBasePath() + File.separator + certification.getNumber() + File.separator + "legalVideo.MP4";
//文件写入
        Files.write(Paths.get(filePath), java.util.Base64.getDecoder().decode(video), StandardOpenOption.CREATE);