java执行linux命令

package com.gtstar.collector;

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

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

public class TestCommand {

public static void main(String[] args) {
String hostname = "192.168.43.54";
String username = "root";
String password = "xinguo123";
//指明连接主机的IP地址
Connection conn = new Connection(hostname);
Session ssh = null;
try {
//连接到主机
conn.connect();
//使用用户名和密码校验
boolean isconn = conn.authenticateWithPassword(username, password);
if(!isconn){
System.out.println("用户名称或者是密码不正确");
}else{
System.out.println("已经连接OK");
ssh = conn.openSession();
/* //使用多个命令用分号隔开
//ssh.execCommand("pwd;cd /tmp;mkdir hb;ls;ps -ef|grep weblogic");
ssh.execCommand("cd /app/weblogic/Oracle/Middleware/user_projects/domains/base_domain;./startWebLogic.sh &");
//只允许使用一行命令，即ssh对象只能使用一次execCommand这个方法，多次使用则会出现异常
*/ ssh.execCommand("ping 192.168.43.179");
//将屏幕上的文字全部打印出来
InputStream is = new StreamGobbler(ssh.getStdout());
BufferedReader brs = new BufferedReader(new InputStreamReader(is));
while(true){
String line = brs.readLine();
if(line==null){
break;
}
System.out.println(line);
}

}
//连接的Session和Connection对象都需要关闭
ssh.close();
conn.close();

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

需要一个jar包：ganymed-ssh2-build210.jar