String host = "166.62.85.112";
int port = 22;
String user = "username";
String password = "password";
String workingDirectory = "c:/";

Session session = null;
Channel channel = null;
ChannelSftp channelSftp = null;

try {
    JSch jsch = new JSch();
    session = jsch.getSession(user, host, port);
    session.setPassword(password);
    Properties config = new Properties();
    config.put("StrictHostKeyChecking", "no");
    session.setConfig(config);
    session.connect();
    channel = session.openChannel("sftp");
    channel.connect();
    channelSftp = (ChannelSftp) channel;
    channelSftp.cd(workingDirectory);
    File f = new File("D:/test.xlsx");
    channelSftp.put(new FileInputStream(f), f.getName());
} catch (Exception ex) {
    ex.printStackTrace();
}