java远程连接linux，执行脚本命令

1.maven的POM.xml需要配置包

    ch.ethz.ganymed
    ganymed-ssh2
    262

2.直接上代码

package maven;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;

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

public class RemoteShellTool {
    /**
     * @param args
     */
    public static void main(String[] args) throws Exception{

    	List result=new ArrayList();
        Connection connection = new Connection("IP");
        connection.connect();//连接
        connection.authenticateWithPassword("username","password");//认证
        Session session=connection.openSession();
        session.execCommand("/opt/cloudera/parcels/CDH/bin/hdfs dfs -ls /");
        InputStream is = new StreamGobbler(session.getStdout());//获得标准输出流
		BufferedReader brs = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
		String temp = "";
        while ((temp=brs.readLine()) != null) {
        	String[] a = temp.split("\\s+");
        	if(a.length > 7 ){
        		result.add(a[a.length-1]);
        	}
        }
        System.out.println(result);
        if (session != null) {
            session.close();
        }
        session.close();
        brs.close();

    }

}

将IP换成自己的IP地址，用户名密码修改为自己的。

3.当我们执行多个脚本的时候，会出现有一个脚本正在执行的错误，这时候我们需要执行多个Session session=connection.openSession();