Java Code Examples for com.jcraft.jsch.SftpException#printStackTrace()

/**
 * Upload a single file to the sFTP server.未支持断点续传
 *
 * @param localFilePath       Path of the file on local computer
 * @param remoteDirectoryPath path of directory where the file will be stored
 * @return true if the file was uploaded successfully, false otherwise
 * @throws IOException if any network or IO error occurred.
 */
@Override
public void uploadFile(String localFilePath, String remoteDirectoryPath, boolean logProcess) throws FtpException {

    if (!Paths.get(localFilePath).toFile().exists()) {
        throw new FtpException("Unable to upload file, file does not exist :  " + localFilePath);
    }

    if (!existsDirectory(remoteDirectoryPath))
        createDirectory(remoteDirectoryPath);

    try {
        channel.put(localFilePath, remoteDirectoryPath);
    } catch (SftpException e) {
        e.printStackTrace();
        throw new FtpException("Unable to upload file :  " + localFilePath);
    }

    logger.info("upload file succeed : " + localFilePath);
}
 

/**
 * Create a directory and all missing parent-directories.
 * <p>
 * 设为 private ,不会有在服务器上仅仅创建文件夹的需求。
 *
 * @param remoteDirectoryPath
 * @throws IOException
 */
private void createDirectory(String remoteDirectoryPath) {

    String originalWorkingDirectory = getWorkingDirectory();

    String[] folders = remoteDirectoryPath.split("/");
    for (String folder : folders) {
        if (folder.length() > 0) {
            try {
                channel.cd(folder);
            } catch (SftpException e) {
                try {
                    channel.mkdir(folder);
                    channel.cd(folder);
                } catch (SftpException e1) {
                    e1.printStackTrace();
                }
            }
        }
    }
    logger.info("create remote Directory '" + remoteDirectoryPath + "' succeed.");
    //还原当前目录
    changeDirectory(originalWorkingDirectory);
}
 

private void put(ChannelSftp cftp) throws SftpIOException {
    // the below is just the replacement for one code line:
    // cftp.put(srcFileName, dstFileName);
    // (connected with #184068 -  Instable remote unit tests failure)
    int attempt = 0;
    while (true) {
        attempt++;
        try {
            cftp.put(parameters.srcFile.getAbsolutePath(), parameters.dstFileName);
            if (attempt > 1) {
                if (LOG.isLoggable(Level.FINE)) {
                    LOG.log(Level.FINE, "Success on attempt {0} to copy {1} to {2}:{3} :\n",
                            new Object[] {attempt, parameters.srcFile.getAbsolutePath(), execEnv, parameters.dstFileName});
                }
            }
            return;
        } catch (SftpException e) {
            if (attempt > PUT_RETRY_COUNT) {
                throw decorateSftpException(e, parameters.dstFileName);
            } else {
                if (LOG.isLoggable(Level.FINE) || attempt == 2) {
                    String message = String.format("Error on attempt %d to copy %s to %s:%s :\n", // NOI18N
                            attempt, parameters.srcFile.getAbsolutePath(), execEnv, parameters.dstFileName);
                    LOG.log(Level.FINE, message, e);
                    if (attempt == 2) {
                        Logger.fullThreadDump(message);
                    }
                }
                e.printStackTrace(System.err);
            }
        }
    }
}
 

/**
     * Determines whether a file exists or not
     * 如果是文件夹，返回 false
     *
     * @param remoteFilePath
     * @return true if exists, false otherwise
     * @throws IOException thrown if any I/O error occurred.
     */
    @Override
    public boolean existsFile(String remoteFilePath) {


        try {
            // System.out.println(channel.realpath(remoteFilePath));
            SftpATTRS attrs = channel.stat(remoteFilePath);
            return attrs.isReg();
        } catch (SftpException e) {
            e.printStackTrace();
            return false;
        }

//        try {
//            // ls 命令
//            // 如果是文件夹或文件夹的符号链接，会进入该文件夹，进行列表，则文件个数会大于 1
//            // 如果是文件，则只会返回该文件本身，文件个数 =1
//            Vector<LsEntry> lsEntries = channel.ls(remoteFilePath);
//
//            for(LsEntry entry:lsEntries)
//               System.out.println(entry.getFilename());
//
//            return lsEntries.size() == 1;
//        } catch (SftpException e) {
//            e.printStackTrace();
//            return false;
//        }

    }