一文告知Java如何实现通过ssh 和远程服务器开展对话聊天

<dependency>
            <groupId>ch.ethz.ganymed</groupId>
            <artifactId>ganymed-ssh2</artifactId>
            <version>262</version>
        </dependency>

import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
import ch.ethz.ssh2.StreamGobbler;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
public class SshTools {
    public  static  String username="root";
    public  static  String password="你远程登录的密码";
    public  static  String ip="远程服务器的地址";
    public  static  String port=22;
    public  static  void  ssh_tool(String cmd){
    try{

        Connection conn= new Connection(ip,port);
        conn.connect();
        boolean isAuthenticated = conn.authenticateWithPassword(username, password);
        if(isAuthenticated ==false)
        {
            //       System.out.println("--------");
            throw new IOException("Authorication failed");
        }
        Session sess = conn.openSession();

        sess.execCommand(cmd);
        InputStream stdout = new StreamGobbler(sess.getStdout());
        BufferedReader br = new BufferedReader(new InputStreamReader(stdout));
        while(true)
        {
            String line = br.readLine();
            if(line==null) break;
            System.out.println(line);
        }
        sess.close();
        conn.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    }

    public static void main(String[] args) {
        SshTools sshTools=new SshTools();
        sshTools.ssh_tool("ifconfig");
    }
}

public class SshTools {
    public static String username = "root";
    public static String password = "你的密码";

    public static String ip = "";
    public static Integer port = 22;

    private Session ssh(String username, String password, String ip, Integer port) {
        //建立链接
        Connection conn = new Connection(ip, port);
        try {
            conn.connect();
            boolean isAuthenticated = conn.authenticateWithPassword(username, password);
            if (isAuthenticated == false) {
                throw new IOException("Authorication failed");
            }
            Session sess = conn.openSession();
            return sess;

        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }

    }

    //执行命令
    public String ssh_tool(String cmd) {
        try {
            Session session = this.ssh(username, password, ip, port);
            session.execCommand(cmd);
            InputStream stdout = new StreamGobbler(session.getStdout());
            BufferedReader br = new BufferedReader(new InputStreamReader(stdout));
            String reslut = "";
            while (true) {
                String line = br.readLine();
                if (line == null) break;
                reslut += line;
            }
            session.close();
            return reslut;
        } catch (IOException e) {
            return null;
        }
    }

}