使用JSch访问服务端日志
有些操作，需要短信验证码，就要每次到服务端查看日志。有些同事不知道如何查看，就写了页面方便大家调用查看服务端日志。
1.Service层
1.1Service接口
package com.csj2018.o2o.service;
import java.io.IOException;
import com.jcraft.jsch.JSchException;
public interface WangLog {
String[] getMessage(String command) throws JSchException,IOException;
}
1.2.Service实现类
package com.csj2018.o2o.service.impl;
import java.io.IOException;
import java.io.InputStream;
import org.springframework.stereotype.Service;
import com.csj2018.o2o.service.WangdaLog;
import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
@Service
public class WangLogImpl implements WangLog{
private String host = "IP地址";
private int port = 22;
private String username = "用户名";
private String password = "密码";
@Override
public String[] getMessage(String command) throws IOException {
StringBuilder sb = new StringBuilder();
// 创建JSch
JSch jSch = new JSch();
// 获取session
Session session;
try {
session = jSch.getSession(username, host, port);
session.setPassword(password);
session.setConfig("StrictHostKeyChecking", "no");
// 启动连接
session.connect();
ChannelExec exec = (ChannelExec)session.openChannel("exec");
exec.setCommand(command);
exec.setInputStream(null);
exec.setErrStream(System.err);
InputStream in = exec.getInputStream();
exec.connect();
byte[] tmp = new byte[1024];
while(true){
while(in.available() >0){
int i = in.read(tmp,0,1024);
if(i<0){
break;
}
sb.append(new String(tmp,i));
}
if(exec.isClosed()){
if(in.available()>0){
continue;
}
System.out.println("exit_statux:"+exec.getExitStatus());
break;
}
try{Thread.sleep(1000);}catch(Exception ee){}
}
exec.disconnect();
session.disconnect();
} catch (JSchException e) {
e.printStackTrace();
}
return sb.toString().split("\n");
}
}
1.3测试Service层
package com.csj2018.o2o.service;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import org.junit.Ignore;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import com.csj2018.o2o.BaseTest;
import com.jcraft.jsch.JSchException;
public class WangLogTest extends BaseTest{
@Autowired
private WangLog wangLog;
@Test
public void test() throws JSchException, IOException {
String[] logs = wangLog.getMessage("cd /data/logs/message-service/; grep value message-service.log |tail -n 10;");
for(String s:logs) {
System.out.println(s);
}
}
}
2.controller层
package com.csj2018.o2o.web.shopadmin;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import com.csj2018.o2o.entity.Area;
import com.csj2018.o2o.entity.Param;
import com.csj2018.o2o.service.AreaService;
import com.csj2018.o2o.service.WangLog;
import com.csj2018.o2o.service.YYGHParamService;
import com.csj2018.o2o.util.HttpServletRequestUtil;
import com.csj2018.o2o.web.superadmin.AreaController;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.jcraft.jsch.JSchException;
@Controller
@RequestMapping("/superadmin")
public class Getparam {
Logger logger = LoggerFactory.getLogger(AreaController.class);
@Autowired
private WangLog wangLog;
@RequestMapping(value="/wangmessage", method=RequestMethod.POST)
@ResponseBody
private Map<String,Object> getMessageLog(@RequestBody Map<String,String> request){
Map<String, Object> modelMap = new HashMap<>();
try {
String command = request.get("command");
System.out.println(command);
String[] logs= wangdaLog.getMessage(command);
logger.info("日志："+Arrays.toString(logs));
modelMap.put("logs", logs);
modelMap.put("success", true);
}catch (JSchException e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.toString());
}catch (IOException e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.toString());
}
return modelMap;
}
}
3.前端
3.1 webapp/wang.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>SUI Mobile Demo</title>
<meta name="description"
content="MSUI: Build mobile apps with simple HTML, CSS, and JS components.">
<meta name="author" content="查看外部浏览器日志">
<meta name="viewport" content="initial-scale=1, maximum-scale=1">
<link rel="shortcut icon" href="/favicon.ico">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="format-detection" content="telephone=no">
<!-- Google Web Fonts -->
<link rel="stylesheet"
href="//g.alicdn.com/msui/sm/0.6.2/css/sm.min.css">
<link rel="stylesheet"
href="//g.alicdn.com/msui/sm/0.6.2/css/sm-extend.min.css">
<script>
//ga
</script>
<script>
var _hmt = _hmt || [];
(function() {
var hm = document.createElement("script");
hm.src = "//hm.baidu.com/hm.js?ba76f8230db5f616edc89ce066670710";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(hm, s);
})();
</script>
</head>
<body>
<div class="page-group">
<div id="page-label-input" class="page">
<header class="bar bar-nav">
<h1 class="title">log查看</h1>
</header>
<div class="content">
<div class="list-block">
<ul>
<!-- 字符串 -->
<li>
<div class="item-content">
<div class="item-inner">
<div class="item-title label">log查看</div>
<div class="item-input">
<textarea id="command" rows="10" cols="50" placeholder='请输入命令。命令之间以";"间隔'></textarea>
</div>
</div>
</div>
</li>
</ul>
</div>
<div class="content-block">
<div class="row">
<div class="col-35" style="padding-left:100px;">
<!-- android解密 -->
<a href="#" class="button button-big button-fill button-success" id="getlog">获取日志</a>
</div>
</div>
</div>
<div class="item-content">
<ul>
<li>
<text>结果字符串</text>
<div class="item-inner" id="result" style="word-wrap:break-word;word-break:break-all;padding-left: 5px;padding-right: 5px;width: wrap-content;">
</div>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<script type='text/javascript'
src='//g.alicdn.com/sj/lib/zepto/zepto.min.js' charset='utf-8'></script>
<script type='text/javascript'
src='//g.alicdn.com/msui/sm/0.6.2/js/sm.min.js' charset='utf-8'></script>
<script type='text/javascript'
src='//g.alicdn.com/msui/sm/0.6.2/js/sm-extend.min.js' charset='utf-8'></script>
<script type='text/javascript'
src='./resources/js/shop/wang.js' charset="utf-8"></script>
</body>
</html>
3.2 webapp/resources/js/shop/wang.js
/**
*
*/
/**
*
*/
$(function(){
var logUrl = '/o2o/superadmin/wangmessage';
getShopInitInfo();
function getShopInitInfo(){
$('#getlog').click(function(){
var formData = {command:$('#command').val()};
$.ajax({
url:logUrl,
type:'POST',
data:JSON.stringify(formData),
contentType:'application/json',
processData:false,
cache:false,
success:function(data){
if(data.success){
$.toast("提交成功！");
//获取响应内容
// alert(JSON.stringify(data.decrypt));
var logs = data.logs;
var temp = '<ul>';
for(i=0;i<logs.length;i++){
temp += '<li><text>'+logs[i]+'</text></li>';
}
temp +='</ul>';
// $.toast(data.logs);
$('#result').html(temp);
//填充
}else{
$.toast("提交失败："+data.errMsg);
}
}
});
});
}
})
3.3 验证
参考博客：
https://www.cnblogs.com/xiaoliu66007/p/11084208.html
https://www.cnblogs.com/jing1617/p/7132100.html
