JAVA is used JSch library implementation of SSH

I. Introduction

　　JSch library can achieve Java Linux server connection and operation commands, files, and support for a variety of common licensing model. URL: http://www.jcraft.com/jsch/

　　Similar SSH.Net framework in C #.

 

Second, the case

　　1, the new Maven project, add the following dependencies in pom.xml:

    <dependencies>
        <!-- https://mvnrepository.com/artifact/com.jcraft/jsch -->
        <dependency>
            <groupId>com.jcraft</groupId>
            <artifactId>jsch</artifactId>
            <version>0.1.55</version>
        </dependency>
    </dependencies>

　　2, create a class ShellTest, reads as follows:

package com.test;

import com.jcraft.jsch.*;

import javax.swing.*;
import java.io.FilterInputStream;
import java.io.IOException;

/**
 * @author Sindrol 2020/3/10 11:16
 */
public class ShellTest {

    public static void main(String[] args) throws JSchException {
        JSch jsch = new JSch();
        //jsch.setKnownHosts("C:\\Users\\XXX\\.ssh\\known_hosts");
        String host = JOptionPane.showInputDialog("Enter hostname", "192.168.213.134");
        int port = 22;
        String user = "root";
        Session session = jsch.getSession(user, host, 22);
        String passwd = JOptionPane.showInputDialog("Enter password", "123456");
        session.setPassword(passwd);
        session.setUserInfo(new MyUserInfo());
        session.connect(30000);
        Channel channel = session.openChannel("shell");
        //((ChannelShell)channel).setAgentForwarding(true);
        // use Window problem 
        channel.setInputStream ( new new FilterInputStream (the System.in) { 
            @Override 
            public  int Read ( byte [] B, int OFF, int len) throws IOException {
                 return in.read (B, OFF, (len> 1024 1024? : len)); 
            } 
        }); 
        // channel.setInputStream (System.in); 
        channel.setOutputStream (System.out);
         // remove the console color output 
        ((ChannelShell) channel) .setPtyType ( "vt102 " );
         //((ChannelShell) channel).setEnv("LANG", "zh_CN");
        channel.connect(3 * 1000);
    }

    public static class MyUserInfo implements UserInfo, UIKeyboardInteractive {
        @Override
        public String getPassword() {
            return null;
        }

        @Override
        public boolean promptYesNo(String message) {
            Object[] options = {"yes", "no"};
            int foo = JOptionPane.showOptionDialog(null,
                    message,
                    "Warning",
                    JOptionPane.DEFAULT_OPTION,
                    JOptionPane.WARNING_MESSAGE,
                    null, options, options[0]);
            return foo == 0;
        }

        @Override
        public String getPassphrase() {
            return null;
        }

        @Override
        public boolean promptPassphrase(String message) {
            return false;
        }

        @Override
        public boolean promptPassword(String message) {
            return false;
        }

        @Override
        public void showMessage(String message) {
            JOptionPane.showMessageDialog(null, message);
        }

        @Override
        public String[] promptKeyboardInteractive(String destination,
                                                  String name,
                                                  String instruction,
                                                  String[] prompt,
                                                  boolean[] echo) {
            return null;
        }
    }
}

　　3, run directly (or labeled after running cmd window Jar) effect