参考网址：就特么忘记参考的那个网址了，好长时间之前写的

pom.xml添加依赖

com.jcraft

jsch

0.1.53

org.apache.commons

commons-io

1.3.2

ssh连接测试代码：

直接在main方法中调用即可

//查看文件个数

String commond = "ls -lR /share | grep \"^-\" | wc -l";

String ls = SSHUtils.execCommandByJSch(ip, port,user, pwd,commond);

//查看文件大小String fileSize = SSHUtils.execCommandByJSch(ip, port,user, pwd, "du -sm /share |awk '{print $1}'");

ssh连接liunx工具类：

package cn.com.taiji.commons.utils;

import java.io.IOException;

import java.io.InputStream;

import org.apache.commons.io.IOUtils;

import org.apache.commons.lang3.StringUtils;

import com.jcraft.jsch.ChannelExec;

import com.jcraft.jsch.JSch;

import com.jcraft.jsch.JSchException;

import com.jcraft.jsch.Session;

/**

* @desc

* @para

* @author

* @version 2018年6月6日 下午2:39:07

*/

public class SSHUtils {

private static final String ENCODING = "UTF-8";

private static final int timeout = 60 * 60 * 1000;

private static final int defaultPort = 22;

public static Session getJSchSession(String ip,int port,String user,String pwd,int timeout) throws JSchException {

JSch jsch = new JSch();

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

session.setPassword(pwd);

session.setConfig("StrictHostKeyChecking", "no");  // 第一次访问服务器时不用输入yes

session.setTimeout(timeout);

session.connect();

return session;

}

public static String execCommandByJSch(String ip,String user,String pwd,String command) throws IOException, JSchException {

return execCommandByJSch(ip, defaultPort, user, pwd, timeout, command, ENCODING);

}

public static String execCommandByJSch(String ip,int port,String user,String pwd,String command) throws IOException, JSchException {

return execCommandByJSch(ip, port, user, pwd, timeout, command, ENCODING);

}

public static String execCommandByJSch(String ip,int port,String user,String pwd,int timeout, String command, String resultEncoding) throws IOException, JSchException {

Session session = getJSchSession(ip, port, user, pwd, timeout);

String result = execCommandByJSch(session, command, resultEncoding);

session.disconnect();

return result;

}

public static String execCommandByJSch(Session session, String command) throws IOException, JSchException {

return execCommandByJSch(session, command, ENCODING);

}

public static String execCommandByJSch(Session session, String command, String resultEncoding) throws IOException, JSchException {

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

InputStream in = channelExec.getInputStream();

channelExec.setCommand(command);

channelExec.setErrStream(System.err);

channelExec.connect();

String result = IOUtils.toString(in, resultEncoding);

channelExec.disconnect();

return result;

}

}