java使用ssh连接Linux并执行命令

 方式1：通过设置账号密码和链接地址

maven pom.xml配置：

<dependency>

        <groupId>com.jcraft</groupId>

           <artifactId>jsch</artifactId>

           <version>0.1.</version>

    </dependency>

java代码如下：

import java.io.IOException;

import java.io.InputStream;

import org.apache.commons.io.IOUtils;

import com.jcraft.jsch.ChannelExec;

import com.jcraft.jsch.JSch;

import com.jcraft.jsch.JSchException;

import com.jcraft.jsch.Session;

public class SSHLinux {

    public static void main(String[] args) throws IOException, JSchException {

        // TODO Auto-generated method stub

        String host = "172.19.28.253";

        int port = 22;

        String user = "root";

        String password = "123456";

        String command = "whatweb --output-xml http://216.139.147.75:443/";

        String res = exeCommand(host,port,user,password,command);

        System.out.println(res);

    }

public static String exeCommand(String host, int port, String user, String password, String command) throws JSchException, IOException {

        JSch jsch = new JSch();

        Session session = jsch.getSession(user, host, port);

        session.setConfig("StrictHostKeyChecking", "no");

    //    java.util.Properties config = new java.util.Properties();

     //   config.put("StrictHostKeyChecking", "no");

        session.setPassword(password);

        session.connect();

        ChannelExec channelExec = (ChannelExec) session.openChannel("exec");

        InputStream in = channelExec.getInputStream();

        channelExec.setCommand(command);

        channelExec.setErrStream(System.err);

        channelExec.connect();

        String out = IOUtils.toString(in, "UTF-8");
 

        channelExec.disconnect();

        session.disconnect();

        return out;

    }

}

原文：java使用ssh连接Linux并执行命令

 方式2：通过获取linux当前环境

linux下：

String[] command = { "/bin/sh", "-c", cmmd };

Process ps = Runtime.getRuntime().exec(command );

windows下：

String[] command = { "cmd", "/c", cmmd };

Process ps = Runtime.getRuntime().exec(command );

e.g.

import org.apache.commons.io.IOUtils;

import java.io.IOException;

import java.util.*;

public class ISshServerRuntimeImpl implements ISshServerRuntime{

    public static void main(String[] args) throws IOException, JSchException {

        String[] cmdarray = { "cmd", "/c","notepad.exe"};

        final Process p = Runtime.getRuntime().exec(cmdarray);

        String res = IOUtils.toString(p.getInputStream());

    }

}