import org.apache.ftpserver.*; import org.apache.ftpserver.listener.ListenerFactory; import org.apache.ftpserver.usermanager.PropertiesUserManagerFactory; FtpServerFactory serverFactory = new FtpServerFactory(); ListenerFactory factory = new ListenerFactory(); factory.setPort(21); factory.setServerAddress("127.0.0.1"); serverFactory.addListener("default", factory.createListener()); PropertiesUserManagerFactory userManagerFactory = new PropertiesUserManagerFactory(); userManagerFactory.setFile(new File("users.properties")); serverFactory.setUserManager(userManagerFactory.createUserManager()); FtpServer server = serverFactory.createServer(); server.start();