SFTP file transfer using Java JSch

Question

Here is my code  which retrieves content of the file  on the remote server and display as output   package sshexample   import com jcraft jsch    import java io     public class SSHexample    public static void main String   args         String user    user       String password    password       String host    192 168 100 103       int port 22       String remoteFile  sample txt        try               JSch jsch   new JSch            Session session   jsch getSession user  host  port           session setPassword password           session setConfig  StrictHostKeyChecking    no            System out println  Establishing Connection               session connect            System out println  Connection established             System out println  Creating SFTP Channel             ChannelSftp sftpChannel    ChannelSftp  session openChannel  sftp            sftpChannel connect            System out println  SFTP Channel created             InputStream out  null          out  sftpChannel get remoteFile           BufferedReader br   new BufferedReader new InputStreamReader out            String line          while   line   br readLine       null                         System out println line                     br close            sftpChannel disconnect            session disconnect              catch JSchException   SftpException   IOException e                System out println e               Now how to implement this program that the file is copied in the localhost and how to copy a file from localhost to the server   Here how to make work the transfer of files for any format of files

User · Answer

The most trivial way to upload a file over SFTP with JSch is:

JSch jsch = new JSch();
Session session = jsch.getSession(user, host);
session.setPassword(password);
session.connect();

ChannelSftp sftpChannel = (ChannelSftp) session.openChannel("sftp");
sftpChannel.connect();

sftpChannel.put("C:/source/local/path/file.zip", "/target/remote/path/file.zip");

Similarly for a download:

sftpChannel.get("/source/remote/path/file.zip", "C:/target/local/path/file.zip");

You may need to deal with UnknownHostKey exception.

User · Answer

Usage   sftp  file  C  home file txt    ssh   user pass host home    sftp  ssh   user pass host home file txt    file  C  home      Implementation

User · Answer

Below code works for me     public static void sftpsript String filepath      try     String user   demouser      username for remote host   String password   demo123      password of the remote host     String host    demo net      remote host address   JSch jsch   new JSch      Session session   jsch getSession user  host     session setPassword password     session connect       ChannelSftp sftpChannel    ChannelSftp  session openChannel  sftp      sftpChannel connect       sftpChannel put  I  demo myOutFile txt     tmp QA Auto myOutFile zip      sftpChannel disconnect      session disconnect      catch Exception ex        ex printStackTrace              OR using StrictHostKeyChecking as  NO   security consequences   public static void sftpsript String filepath      try     String user   demouser      username for remote host   String password   demo123      password of the remote host     String host    demo net      remote host address   JSch jsch   new JSch       Session session   jsch getSession user  host  22      Properties config   new Properties       config put  StrictHostKeyChecking    no       session setConfig config       session setPassword password      System out println  user    user   n host    host      session connect       ChannelSftp sftpChannel    ChannelSftp  session openChannel  sftp      sftpChannel connect       sftpChannel put  I  demo myOutFile txt     tmp QA Auto myOutFile zip      sftpChannel disconnect      session disconnect      catch Exception ex        ex printStackTrace

[java] SFTP file transfer using Java JSch

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