<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 java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class SSH2Util {

    //指定默認(rèn)編碼
    private static String DEFAULT_CHARSET = "UTF-8";

    /**
     * 建立SSH2連接
     * @param host 主機(jī)地址
     * @param username 用戶名
     * @param password 密碼
     * @return Connection
     */
    public static Connection openConnection(String host,String username,String password) {
        try {
            Connection connection = new Connection(host);
            //建立ssh2連接
            connection.connect();
            //檢驗(yàn)用戶名
            boolean login = connection.authenticateWithPassword(username,password);
            if (login){
                logger.info(host + " 連接成功");
                return connection;
            }else {
                throw new RuntimeException(host + " 用戶名密碼不正確");
            }
        } catch (Exception e) {
            throw new RuntimeException(host +" "+ e);
        }
    }

    /**
     * 執(zhí)行命令
     * @param connection ssh2連接對(duì)象
     * @param command 命令語(yǔ)句
     * @return 執(zhí)行結(jié)果, 封裝執(zhí)行狀態(tài)和執(zhí)行結(jié)果
     */
    public static ExecCmdResult execCommand(Connection connection,String command){
        ExecCmdResult execCmdResult = new ExecCmdResult();
        Session session = null;
        try{
            session = connection.openSession();
            //執(zhí)行命令
            session.execCommand(command);
            //解析結(jié)果
            String result = parseResult(session.getStdout());
            //解析結(jié)果為空，則表示執(zhí)行命令發(fā)生了錯(cuò)誤，嘗試解析錯(cuò)誤出輸出
            if (result == null||result.length()==0){
                result = parseResult(session.getStderr());

            }else {
                execCmdResult.setSuccess(true);
            }
            //設(shè)置響應(yīng)結(jié)果
            execCmdResult.setResult(result);
            logger.info(command + " ==>> " +execCmdResult.getResult());
            return execCmdResult;

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

    public static String parseResult(InputStream inputStream) throws IOException{
        //讀取輸出流內(nèi)容
        BufferedReader br = new BufferedReader(new InputStreamReader(inputStream,DEFAULT_CHARSET));
        StringBuffer resultSB = new StringBuffer();
        String line;
        while((line = br.readLine()) != null){
            resultSB.append(line+"\n");
        }
        //替換換行符
        String result = resultSB.toString().replaceAll("[\\t\\n\\r]", "");
        return result;

    }
}

public class ExecCmdResult {

    //命令執(zhí)行是否成功
    private boolean flag ;
    //輸出結(jié)果
    private String result;

    public void setFlag(boolean success){
        this.flag = success;
    }

    public boolean getFlag() {
        return flag;
    }

    public String getResult(){
        return result;
    }
    public void setResult(String result){
        this.result = result;
    }

}

import ch.ethz.ssh2.Connection;

public class SSH2Demo {

    public static void main(String[] args) {
        try {
            String host = "168.192.22.7";
            String username = "root";
            String password = "123456";
            Connection connection = SSH2Util.openConnection(host,username,password);
            String cpuInfo = "cat /proc/cpuinfo | grep \"cpu cores\" | uniq"; //服務(wù)器核數(shù)
            ExecCmdResult cup = SSH2Util.execCommand(connection,cpuInfo);
            connection.close();
        }
        catch (Exception a){
            a.printStackTrace();
        }
    }
}