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());
    }
}