java获取传真文件的页数

public static int getTIFFPageNum(String srcPath) {
  File srcFile = new File(srcPath);

  InputStream fis = null;

  try {
   fis = new FileInputStream(srcFile);

   TIFFDecodeParam decodeParam = new TIFFDecodeParam();
   ImageDecoder decoder = ImageCodec.createImageDecoder("TIFF", fis,
     decodeParam);
   return decoder.getNumPages();
  } catch (Exception e) {
   e.printStackTrace();
  } finally {
   try {
    if (null != fis) {
     fis.close();
    }
   } catch (Exception e) {
   }
  }
  return 0;
 }