基于apache mina 实现ssh客户端

导入依赖

        
            org.apache.sshd
            sshd-core
            2.8.0
        

代码

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Scanner;


/**
 * ClassName:SSHClientDemo
 * Package:ssh
 * Description:
 *
 * @date:2022/8/11 20:41
 * @author:Riku
 */
public class SSHClientDemo {

    private SshClient sshClient = null;
    private ClientSession session;

    private  final static Logger log = LoggerFactory.getLogger(SSHClientDemo.class);

    // 初始化
    private boolean init(){
        sshClient = SshClient.setUpDefaultClient();
        sshClient.start();
        try {
            session = sshClient.connect("root", "192.168.124.9", 22).verify().getSession();
            return session.auth().verify().isSuccess();
        } catch (IOException e) {
            e.printStackTrace();
            log.error("Login error");
        }
        return false;
    }

    private void close() throws IOException {
        if (session != null && session.isOpen()){
            session.close();
        }

        // 关闭 SSH客户端
        if (sshClient != null && sshClient.isOpen()) {
            sshClient.stop();
            sshClient.close();
        }
    }

    public Integer run(String cmd){
        ChannelExec channel;
        if (this.init()){
            try {
                channel = session.createExecChannel(cmd);
                channel.open();
                ByteArrayOutputStream msg = new ByteArrayOutputStream();
                channel.setErr(msg);
                System.out.println(msg.toString());
                return channel.getExitStatus();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

    public void run(){
        ChannelExec channel;
        Scanner scanner = new Scanner(System.in);
        if (this.init()){
            try {
                while (true){
                    channel = session.createExecChannel(scanner.nextLine());
                    channel.open();
                    ByteArrayOutputStream msg = new ByteArrayOutputStream();
                    channel.setOut(msg);

                    Thread.sleep(100);

                    System.out.println(msg.toString());
                }

            } catch (IOException e) {
                e.printStackTrace();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        new SSHClientDemo().run();
    }

}

测试

#route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.124.1   0.0.0.0         UG    100    0        0 ens37
0.0.0.0         192.168.10.2    0.0.0.0         UG    101    0        0 ens33
192.168.10.0    0.0.0.0         255.255.255.0   U     100    0        0 ens33
192.168.124.0   0.0.0.0         255.255.255.0   U     100    0        0 ens37

#cat /etc/os-*
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"