java通过SSH连接linux远程服务器操作命令

pom依赖

 
     ch.ethz.ganymed
     ganymed-ssh2
     262
 

工具类

package com.ruoyi.system.common.utils;

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

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

public class SSHToolUtil {
    private Connection conn;
    private String ipAddr;
    private Charset charset = StandardCharsets.UTF_8;
    private String userName;
    private String password;

    public SSHToolUtil(String ipAddr, String userName, String password) {
        this.ipAddr = ipAddr;
        this.userName = userName;
        this.password = password;
        if (charset != null) {
            this.charset = charset;
        }
    }

    
    private boolean login() {
        conn = new Connection(ipAddr);

        try {
//            System.out.println("登录");
            // 连接
            conn.connect();
            // 认证
            return conn.authenticateWithPassword(userName, password);
        } catch (IOException e) {
            e.printStackTrace();
            return false;
        }
    }


    
    public StringBuilder exec(String cmds) throws IOException {
        InputStream in = null;
        StringBuilder result = new StringBuilder();
        try {
            if (this.login()) {
//                System.out.println("333");
                // 打开一个会话
                Session session = conn.openSession();
                session.execCommand(cmds);
                in = session.getStdout();
                result = this.processStdout(in, this.charset);
                conn.close();
            }
        } finally {
            if (null != in) {
                in.close();
            }
        }
        return result;
    }

    
    public StringBuilder processStdout(InputStream in, Charset charset) throws FileNotFoundException {
        byte[] buf = new byte[1024];
        StringBuilder sb = new StringBuilder();
//        OutputStream os = new FileOutputStream("./data.txt");
        try {
            int length;
            while ((length = in.read(buf)) != -1) {
//                os.write(buf, 0, c);
                sb.append(new String(buf, 0, length));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return sb;
    }
}

简单调用

SSHToolUtil sshToolUtil = new SSHToolUtil(url, user, pass);
List> list = new ArrayList<>();
StringBuilder exec = sshToolUtil.exec("ls /beifen/zhujian/all/");