how to download file from sftp server using spring integration without using spring boot

Question

I have a requirement where I want to use spring integration but don't want to use spring boot to download the file from sftp server. I am using jcraft library here. Want to use spring-integration libraries.

public void downloadFileFromSftpServer () {
        String hostname = "XXX";
        String username = "XXX";
        String password = "XXX";
        String copyFrom = "XXX";
        String copyTo = "XXX";
        JSch jsch = new JSch();
        Session session;
        System.out.println("Trying to connect.....");
        try {
            session = jsch.getSession(username, hostname, 22);
            session.setConfig("StrictHostKeyChecking", "no");
            session.setPassword(password);
            session.connect();
            Channel channel = session.openChannel("sftp");
            channel.connect();
            System.out.println ("Connection successful.");
            ChannelSftp sftpChannel = (ChannelSftp) channel;
            Vector <ChannelSftp.LsEntry> vector = (Vector<ChannelSftp.LsEntry>) sftpChannel.ls(copyFrom);
            ChannelSftp.LsEntry list = vector.get(0);
            System.out.println(list.getFileName());
            String oldestFile =list.getFilename();
            sftpChannel.get(copyFrom+oldestFile, copyTo);
    }

Answer 1

See the Spring Integration Documentation. It uses jsch too.

It does not need Spring Boot, it can be used in any Java/JVM application; Spring Integration has existed much longer than Spring Boot.