版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/zmx729618/article/details/81975090
JSch 是SSH2的一个纯Java实现。它允许你连接到一个sshd 服务器，使用端口转发，X11转发，文件传输等等。你可以将它的功能集成到你自己的 程序中。同时该项目也提供一个J2ME版本用来在手机上直连SSHD服务器。实现一个java工具类。
引用：
<dependency>
<groupId>com.jcraft</groupId>
<artifactId>jsch</artifactId>
</dependency>
java工具类：
package com.citipub_zxsy.count.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.apache.commons.lang3.StringUtils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
/**
* @decription 执行远程shell命令，并获取结果--实现分析日志
* @author zhangwenchao
* @date 2018/6/8
*
*/
public class ShellUtils {
/**配置连接
* @param user
* @param passwd
* @param host
* @param post
* @throws Exception
*/
public static Session connect(String user, String passwd, String host,int post) throws Exception {
JSch jsch = new JSch();
Session session = jsch.getSession(user, host, post);
if (session == null) {
throw new Exception("session is null");
}
session.setPassword(passwd);
java.util.Properties config = new java.util.Properties();
//第一次登陆
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);
try {
session.connect(30000);
} catch (Exception e) {
throw new Exception("连接远程端口无效或用户名密码错误");
}
return session;
}
/**
* @description 执行shell命令
* @param command shell 命令
* @param user 用户名
* @param passwd 密码
* @param host ip地址
* @param post 端口号
* @throws Exception
*/
public static void execCmd(String command, String user, String passwd, String host, int port) throws Exception {
System.out.println(command);
Session session= connect(user, passwd,host,port);
BufferedReader reader = null;
Channel channel = null;
try {
channel = session.openChannel("exec");
((ChannelExec) channel).setCommand(command);
channel.setInputStream(null);
((ChannelExec) channel).setErrStream(System.err);
channel.connect();
InputStream in = channel.getInputStream();
reader = new BufferedReader(new InputStreamReader(in));
String buf = null;
//返回数据
while ((buf = reader.readLine()) != null) {
System.out.println(buf);
}
} catch (IOException e) {
e.printStackTrace();
} catch (JSchException e) {
e.printStackTrace();
} finally {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
channel.disconnect();
session.disconnect();
}
}
public static List<String> execCmdAndOutput(String command, String user, String passwd, String host, int port) throws Exception {
Session session= connect(user, passwd,host,port);
BufferedReader reader = null;
Channel channel = null;
try {
channel = session.openChannel("exec");
((ChannelExec) channel).setCommand(command);
channel.setInputStream(null);
((ChannelExec) channel).setErrStream(System.err);
channel.connect();
InputStream in = channel.getInputStream();
reader = new BufferedReader(new InputStreamReader(in));
List<String> output = new ArrayList<String>();
String buf = null;
//返回数据
while ((buf = reader.readLine()) != null) {
output.add(buf);
}
return output;
} catch (IOException e) {
e.printStackTrace();
} catch (JSchException e) {
e.printStackTrace();
} finally {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
channel.disconnect();
session.disconnect();
}
return null;
}
/**
*
* @param logPath
* @param fileList
* @param user
* @param passwd
* @param host
* @param port
* @return
* @throws Exception
*/
public static Set<String> execCmdAndgetOlderUserIDs(Set<String> userIDSet, String logPath, List<String> fileNames, String user, String passwd, String host, int port) throws Exception {
Session session= connect(user, passwd,host,port);
try {
for (String fileName : fileNames) {
String command = "cat "+fileName+"|grep '/login'";
Channel channel = null;
BufferedReader reader = null;
try {
channel = session.openChannel("exec");
((ChannelExec) channel).setCommand(command);
channel.setInputStream(null);
((ChannelExec) channel).setErrStream(System.err);
channel.connect();
InputStream in = channel.getInputStream();
reader = new BufferedReader(new InputStreamReader(in,"UTF-8"));
String buf = null;
//返回数据
while ((buf = reader.readLine()) != null) {
analyseLogOneLine(userIDSet, buf);
}
} finally {
reader.close();
channel.disconnect();
}
}
} finally {
session.disconnect();
}
return userIDSet;
}
/**
* 解析一行日志，获取老用户uid存放到Set中并返回
* @param map
* @param str
* @return
*/
private static Set<String> analyseLogOneLine(Set<String> userIDSet, String str) {
String[] logLine = str.split("\\s+\\|\\s+");
String userToken = null;
String cacheResult=null;
if(logLine!=null && logLine.length==12){
userToken= logLine[6].trim();
cacheResult = logLine[10].trim();
}
if(StringUtils.isNotEmpty(cacheResult)){
JSONObject jsonObject = JSON.parseObject(cacheResult);
JSONObject body = (JSONObject)jsonObject.get("body");
if(body!=null){
String userID = (String)body.get("userID");
if(StringUtils.isNotEmpty(userID)&&StringUtils.isNotEmpty(userToken)&&userToken.contains("anony")){
userToken = userToken.substring(0, userToken.length()-6);
if(!userToken.equals(userID)){
userIDSet.add(userID);
}
}
}
}
return userIDSet;
}
public static void main(String[] args) throws Exception {
execCmd("cd /web/logs/sc_zxsy; cat api-2018-06-07.0.log","yunpub","XXXXXXX","xxx.xxx.xx.xxx",22);
}
}