java实现SSH客户端

java实现SSH客户端，并连接SSH服务端进行命令交互。

jar下载

http://www.ganymed.ethz.ch/ssh2/

code

package ssh;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.Scanner;
import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
import ch.ethz.ssh2.StreamGobbler;

// SSH连接并执行命令
public class NetXshell {
    private static String IP = "10.10.10.246";
    private static String USERNAME = "root";
    private static String PASSWORD = "cec784%&";

    private static String DEFAULTCHARTSET = "UTF-8";
    private static Connection conn;

    private static Session cmdSession;

    // 登录
    public static Boolean login(RemoteConnect remoteConnect) {
        boolean flag = false;
        try {
            conn = new Connection(remoteConnect.getIp());
            conn.connect(); // 连接
            flag = conn.authenticateWithPassword(remoteConnect.getUserName(), remoteConnect.getPassword()); // 认证
            if (flag) {
                System.out.println("SSH登录成功！");
            } else {
                System.out.println("SSH登录失败！");
                conn.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return flag;
    }

    // 执行命令
    public static String execute(String cmd){
        String result = "";
        try {
            cmdSession = conn.openSession();   // 打开一个会话
            cmdSession.execCommand(cmd);   // 执行命令
            result = processStdout(cmdSession.getStdout(), DEFAULTCHARTSET);
            cmdSession.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

   // 解析返回字节流数据
    public static String processStdout(InputStream in, String charset){
        InputStream stdout = new StreamGobbler(in);
        StringBuffer buffer = new StringBuffer();
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(stdout, charset));
            String line = null;
            while ((line = br.readLine()) != null) {
                buffer.append(line + "\n");
            }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return buffer.toString();
    }

   // 密码关联连接SSH服务端
    public static boolean connectLinux(String ip, String userName, String password) {
        boolean result = false;
        RemoteConnect remoteConnect = new RemoteConnect();
        remoteConnect.setIp(ip);
        remoteConnect.setUserName(userName);
        remoteConnect.setPassword(password);
        try {
            if (login(remoteConnect)) {
                result = true;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    public static void main(String[] args) {
        String commandStr;
        String commandRes;
        Boolean result = NetXshell.connectLinux(IP, USERNAME, PASSWORD);
        if(result){
            System.out.println("请输入命令：");
            Scanner scanner = new Scanner(System.in);
            commandStr = scanner.nextLine();
            // commandStr = "./trigger 10.10.10.246 12888 10.10.10.68";
            commandRes = execute(commandStr);
            System.out.println(commandRes);
        }
    }
}

package ssh;

public class RemoteConnect {

    private String ip;

    private String userName;

    private String password;

    public String getIp() {
        return ip;
    }

    public void setIp(String ip) {
        this.ip = ip;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

详细参考文章

SSH-2实现java连接远程服务器并执行脚本命令
https://blog.csdn.net/chuanxincui/article/details/80916205?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-6.control