利用Java怎么对文件目录进行远程共享

 public static int smbDownload(String localDir, String removeDir,   String _fileName, String removeIp, String removeLoginUser,   String removeLoginPass) throws Exception {  InputStream in = null;  OutputStream out = null;  try {   NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(     removeIp, removeLoginUser, removeLoginPass);   SmbFile remoteFile = new SmbFile(removeDir + _fileName, auth);   if (!remoteFile.exists()) {    return 0;   }   File dir = new File(localDir);   if (!dir.exists()) {    dir.mkdirs();   }   String fileName = _fileName.substring(_fileName.lastIndexOf("\\")+1, _fileName.length());   File localFile = new File(localDir + fileName);   in = new BufferedInputStream(new SmbFileInputStream(remoteFile));   out = new BufferedOutputStream(new FileOutputStream(localFile));   byte[] buffer = new byte[1024];   while (in.read(buffer) != -1) {    out.write(buffer);    buffer = new byte[1024];   }  } catch (Exception e) {   e.printStackTrace();  } finally {   try {    if (null != out) {     out.close();    }   } catch (IOException e) {    e.printStackTrace();   } finally {    if (null != in) {     try {      in.close();     } catch (IOException e) {      e.printStackTrace();     }    }   }  }  return 1; }