SSH Connection Java

问题

Is it possible to make a ssh connection to a server with java?

回答1:

Yes, I used http://sourceforge.net/projects/sshtools/ in a Java application to connect to a UNIX server over SSH, it worked quite well.

回答2:

jsch and sshJ are both good clients. I'd personally use sshJ as the code is documented much more thoroughly.

jsch has widespread use, including in eclipse and apache ant. I've also had issues with jsch and AES encrypted private keys, which required re-encrypting in 3DES, but that could just be me.

回答3:

Yes, it is possible. You can try the following code:

package mypackage;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
import java.io.*;

public class SSHReadFile
    {
    public static void main(String args[])
    {
    String user = "user";
    String password = "password";
    String host = "yourhostname";
    int port=22;

    String remoteFile="/home/john/test.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("Crating SFTP Channel.");
        ChannelSftp sftpChannel = (ChannelSftp) session.openChannel("sftp");
        sftpChannel.connect();
        System.out.println("SFTP Channel created.");
        }
    catch(Exception e){System.err.print(e);}
    }
    }

回答4:

To make connection to Java servers, you need an implementation of SSHD (ssh client is not enough). You can try Apache SSHD,

http://mina.apache.org/sshd/

Because sshd is already running on most systems, an easier alternative is to connect to the server through a SSH tunnel.

来源：https://stackoverflow.com/questions/3303122/ssh-connection-java