/**

• 获取音频时长
• @param multipart
• @return
• @throws IOException
  */
  public static long getDuration(MultipartFile multipart) throws IOException{
  File file = new File(multipart.getOriginalFilename());
  try {
  FileUtils.copyInputStreamToFile(multipart.getInputStream(),file);
  MultimediaObject instance=new MultimediaObject(file);
  MultimediaInfo result=instance.getInfo();
  long duration;
  duration=result.getDuration()/1000;
  file.delete();
  return duration;
  } catch (EncoderException e) {
  e.printStackTrace();
  }
  return 0L;
  }