Java 嵌入式 FTP server

FTP server的有點可靠和高效的傳輸數據，嵌入式FTP server的用途大家可以想想，我一般用來監控文件上傳、下載事件，方便、輕量，貼出關鍵代碼

 /**
     * FTP Server 啟動
     */
    public void start() {
        FtpServerFactory serverFactory = new FtpServerFactory();

        ListenerFactory factory = new ListenerFactory();

        // set the port of the listener
        factory.setPort(21);
        if (LOG.isInfoEnabled()) {
            LOG.info("----------------Ftp server 端口21----------------------------");
        }
        // replace the default listener
        serverFactory.addListener("default", factory.createListener());

        //設置用戶配置信息
        PropertiesUserManagerFactory userManagerFactory = new PropertiesUserManagerFactory();
        userManagerFactory.setFile(SysConfig.getInstance().getConfigFile());


        if (LOG.isInfoEnabled()) {
            LOG.info("----------------Ftp server 設置用戶配置信息----------------------------");
        }
        //注冊FTP事件監聽
        Map<String, Ftplet> ftplets = new LinkedHashMap<String, Ftplet>();
        ftplets.put(FtpletNotification.class.getName(), new FtpletNotification());
        serverFactory.setFtplets(ftplets);
        if (LOG.isInfoEnabled()) {
            LOG.info("----------------Ftp server 注冊FTP事件監聽----------------------------");
        }
        serverFactory.setUserManager(userManagerFactory.createUserManager());
        if (LOG.isInfoEnabled()) {
            LOG.info("----------------Ftp server 準備啟動----------------------------");
        }
        // start the server
        server = serverFactory.createServer();
        try {
            server.start();
            port = serverFactory.getListener("default").getPort();
            serverAddress = serverFactory.getListener("default").getServerAddress();
            if(serverAddress == null) {
                try {
                    serverAddress= InetAddress.getLocalHost().getHostAddress();
                } catch (UnknownHostException e) {
                    e.printStackTrace();
                }
            }
            if (LOG.isInfoEnabled()) {
                LOG.info("----------------Ftp serverAddress----------------------------" + serverAddress);
            }
            if (LOG.isInfoEnabled()) {
                LOG.info("----------------Ftp server 啟動成功----------------------------");
            }
        } catch (FtpException e) {
            e.printStackTrace();
            if (LOG.isErrorEnabled()) {
                LOG.error("FTP server 啟動失敗 ", e);
            }
        }
    }