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這篇文章將為大家詳細(xì)講解有關(guān)如何將Arthas集成進(jìn)Spring Boot監(jiān)控平臺(tái)中，小編覺(jué)得挺實(shí)用的，因此分享給大家做個(gè)參考，希望大家閱讀完這篇文章后可以有所收獲。
Arthas 是 Alibaba 開(kāi)源的 Java 診斷工具，具有實(shí)時(shí)查看系統(tǒng)的運(yùn)行狀況；查看函數(shù)調(diào)用參數(shù)、返回值和異常；在線熱更新代碼；秒解決類沖突問(wèn)題；定位類加載路徑；生成熱點(diǎn)；通過(guò)網(wǎng)頁(yè)診斷線上應(yīng)用。如今在各大廠都有廣泛應(yīng)用，也延伸出很多產(chǎn)品。
為了方便，SpringBoot Admin 簡(jiǎn)稱為 SBA（版本：1.5.x）。
1.5 版本的 SBA 如果要開(kāi)發(fā)插件比較麻煩，需要下載 SBA 的源碼包，再按照 Spring-boot-admin-server-ui-hystrix的形式 Copy 一份,由于 JS 使用的是 Angular，本人嘗試了很久，雖然掌握了如何開(kāi)發(fā)插件，奈何不會(huì) Angular，遂放棄????
版本：2.x 2.x 版本的 SBA 插件開(kāi)發(fā)，官網(wǎng)有介紹如何開(kāi)發(fā)，JS 使用 Vue，方便很多，由于我們項(xiàng)目還在使用 1.5，所以并沒(méi)有使用該版本，請(qǐng)讀者自行嘗試。
不能使用 SBA 的插件進(jìn)行集成，那還有什么辦法呢？????
鄙人的辦法是將 Arthas 的相關(guān)文件直接 Copy 到 Admin 服務(wù)中，這些文件都來(lái)自 Arthas-all 項(xiàng)目 Tunnel-server。
admin 目錄結(jié)構(gòu)
該包下存放的是所有 Arthas 的 Java 文件。
Endpoint 包下的文件可以都注釋掉，沒(méi)多大用。
ArthasController 這個(gè)文件是我自己新建的，用來(lái)獲取所有注冊(cè)到 Arthas 的客戶端，這在后面是有用的。
其他文件直接 Copy 過(guò)來(lái)就行。
@RequestMapping("/api/arthas")
@RestController
public class ArthasController {
@Autowired
private TunnelServer tunnelServer;
@RequestMapping(value = "/clients", method = RequestMethod.GET)
public Set<String> getClients() {
Map<String, AgentInfo> agentInfoMap = tunnelServer.getAgentInfoMap();
return agentInfoMap.keySet();
}
}spring-boot-admin-server-ui
該文件建在 Resources.META-INF 下，Admin 會(huì)在啟動(dòng)的時(shí)候加載該目錄下的文件。
index.html 覆蓋 SBA 原來(lái)的首頁(yè)，在其中添加一個(gè) Arthas 導(dǎo)航
<!DOCTYPE html>
<html class="no-js">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Spring Boot Admin</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width">
<link rel="shortcut icon" type="image/x-icon" href="img/favicon.png"/>
<link rel="stylesheet" type="text/css" href="core.css"/>
<link rel="stylesheet" type="text/css" href="all-modules.css"/>
</head>
<body>
<header class="navbar header--navbar desktop-only">
<div class="navbar-inner">
<div class="container-fluid">
<div class="spring-logo--container">
<a class="spring-logo" href="#"><span></span></a>
</div>
<div class="spring-logo--container">
<a class="spring-boot-logo" href="#"><span></span></a>
</div>
<ul class="nav pull-right">
<!--增加Arthas導(dǎo)航-->
<li class="navbar-link ng-scope">
<a class="ng-binding" href="arthas/arthas.html">Arthas</a>
</li>
<li ng-repeat="view in mainViews" class="navbar-link" ng-class="{active: $state.includes(view.state)}">
<a ui-sref="{{view.state}}" ng-bind-html="view.title"></a>
</li>
</ul>
</div>
</div>
</header>
<div ui-view></div>
<footer class="footer">
<ul class="inline">
<li><a href="https://codecentric.github.io/spring-boot-admin/@project.version@" target="_blank">Reference
Guide</a></li>
<li>-</li>
<li><a href="https://github.com/codecentric/spring-boot-admin" target="_blank">Sources</a></li>
<li>-</li>
<li>Code licensed under <a href="http://www.apache.org/licenses/LICENSE-2.0" target="_blank">Apache License
2.0</a></li>
</ul>
</footer>
<script src="dependencies.js" type="text/javascript"></script>
<script type="text/javascript">
sbaModules = [];
</script>
<script src="core.js" type="text/javascript"></script>
<script src="all-modules.js" type="text/javascript"></script>
<script type="text/javascript">
angular.element(document).ready(function () {
angular.bootstrap(document, sbaModules.slice(0), {
strictDi: true
});
});
</script>
</body>
</html>Arthas.html
新建頁(yè)面，用于顯示 Arthas 控制臺(tái)頁(yè)面。
這個(gè)文件中有兩個(gè)隱藏文本域，這兩個(gè)用于連接 Arthas 服務(wù)端，在頁(yè)面加載的時(shí)候會(huì)自動(dòng)將 Admin 的 Url 賦值給 Ip。
<input type="hidden" id="ip" name="ip" value="127.0.0.1"> <input type="hidden" id="port" name="port" value="19898">
<!DOCTYPE html>
<html class="no-js">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Spring Boot Admin</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width">
<link rel="shortcut icon" type="image/x-icon" href="../img/favicon.png"/>
<link rel="stylesheet" type="text/css" href="../core.css"/>
<link rel="stylesheet" type="text/css" href="../all-modules.css"/>
<script src="js/jquery-3.3.1.min.js"></script>
<script src="js/popper-1.14.6.min.js"></script>
<script src="js/xterm.js"></script>
<script src="js/web-console.js"></script>
<script src="js/arthas.js"></script>
<link href="js/xterm.css" rel="stylesheet" />
<script type="text/javascript">
window.addEventListener('resize', function () {
var terminalSize = getTerminalSize();
ws.send(JSON.stringify({ action: 'resize', cols: terminalSize.cols, rows: terminalSize.rows }));
xterm.resize(terminalSize.cols, terminalSize.rows);
});
</script>
</head>
<body>
<header class="navbar header--navbar desktop-only">
<div class="navbar-inner">
<div class="container-fluid">
<div class="spring-logo--container">
<a class="spring-logo" href="#"><span></span></a>
</div>
<div class="spring-logo--container">
<a class="spring-boot-logo" href="#"><span></span></a>
</div>
<ul class="nav pull-right">
<li class="navbar-link ng-scope">
<a class="ng-binding" href="arthas.html">Arthas</a>
</li>
<li class="navbar-link ng-scope">
<a class="ng-binding" href="../">Applications</a>
</li>
<li class="navbar-link ng-scope">
<a class="ng-binding" href="../#/turbine">Turbine</a>
</li>
<li class="navbar-link ng-scope">
<a class="ng-binding" href="../#/events">Journal</a>
</li>
<li class="navbar-link ng-scope">
<a class="ng-binding" href="../#/about">About</a>
</li>
<li class="navbar-link ng-scope">
<a class="ng-binding" href="../#/logout"><i class="fa fa-2x fa-sign-out" aria-hidden="true"></i></a>
</li>
</ul>
</div>
</div>
</header>
<div ui-view>
<div class="container-fluid">
<form class="form-inline">
<input type="hidden" id="ip" name="ip" value="127.0.0.1">
<input type="hidden" id="port" name="port" value="19898">
Select Application：
<select id="selectServer"></select>
<button class="btn" onclick="startConnect()" type="button"><i class="fa fa-connectdevelop"></i> Connect</button>
<button class="btn" onclick="disconnect()" type="button"><i class="fa fa-search-minus"></i> Disconnect</button>
<button class="btn" onclick="release()" type="button"><i class="fa fa-search-minus"></i> Release</button>
</form>
<div id="terminal-card">
<div id="terminal"></div>
</div>
</div>
</div>
</body>
</html>Arthas.js 存儲(chǔ)頁(yè)面控制的 js
var registerApplications = null;
var applications = null;
$(document).ready(function () {
reloadRegisterApplications();
reloadApplications();
});
/**
* 獲取注冊(cè)的arthas客戶端
*/
function reloadRegisterApplications() {
var result = reqSync("/api/arthas/clients", "get");
registerApplications = result;
initSelect("#selectServer", registerApplications, "");
}
/**
* 獲取注冊(cè)的應(yīng)用
*/
function reloadApplications() {
applications = reqSync("/api/applications", "get");
console.log(applications)
}
/**
* 初始化下拉選擇框
*/
function initSelect(uiSelect, list, key) {
$(uiSelect).html('');
var server;
for (var i = 0; i < list.length; i++) {
server = list[i].toLowerCase().split("@");
if ("phantom-admin" === server[0]) continue;
$(uiSelect).append("<option value=" + list[i].toLowerCase() + ">" + server[0] + "</option>");
}
}
/**
* 重置配置文件
*/
function release() {
var currentServer = $("#selectServer").text();
for (var i = 0; i < applications.length; i++) {
serverId = applications[i].id;
serverName = applications[i].name.toLowerCase();
console.log(serverId + "/" + serverName);
if (currentServer === serverName) {
var result = reqSync("/api/applications/" +serverId+ "/env/reset", "post");
alert("env reset success");
}
}
}
function reqSync(url, method) {
var result = null;
$.ajax({
url: url,
type: method,
async: false, //使用同步的方式,true為異步方式
headers: {
'Content-Type': 'application/json;charset=utf8;',
},
success: function (data) {
// console.log(data);
result = data;
},
error: function (data) {
console.log("error");
}
});
return result;
}Web-console.js
修改了連接部分代碼，參考一下。
var ws;
var xterm;
/**有修改**/
$(function () {
var url = window.location.href;
var ip = getUrlParam('ip');
var port = getUrlParam('port');
var agentId = getUrlParam('agentId');
if (ip != '' && ip != null) {
$('#ip').val(ip);
} else {
$('#ip').val(window.location.hostname);
}
if (port != '' && port != null) {
$('#port').val(port);
}
if (agentId != '' && agentId != null) {
$('#selectServer').val(agentId);
}
// startConnect(true);
});
/** get params in url **/
function getUrlParam (name, url) {
if (!url) url = window.location.href;
name = name.replace(/[\[\]]/g, '\\$&');
var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'),
results = regex.exec(url);
if (!results) return null;
if (!results[2]) return '';
return decodeURIComponent(results[2].replace(/\+/g, ' '));
}
function getCharSize () {
var tempDiv = $('<div />').attr({'role': 'listitem'});
var tempSpan = $('<div />').html('qwertyuiopasdfghjklzxcvbnm');
tempDiv.append(tempSpan);
$("html body").append(tempDiv);
var size = {
width: tempSpan.outerWidth() / 26,
height: tempSpan.outerHeight(),
left: tempDiv.outerWidth() - tempSpan.outerWidth(),
top: tempDiv.outerHeight() - tempSpan.outerHeight(),
};
tempDiv.remove();
return size;
}
function getWindowSize () {
var e = window;
var a = 'inner';
if (!('innerWidth' in window )) {
a = 'client';
e = document.documentElement || document.body;
}
var terminalDiv = document.getElementById("terminal-card");
var terminalDivRect = terminalDiv.getBoundingClientRect();
return {
width: terminalDivRect.width,
height: e[a + 'Height'] - terminalDivRect.top
};
}
function getTerminalSize () {
var charSize = getCharSize();
var windowSize = getWindowSize();
console.log('charsize');
console.log(charSize);
console.log('windowSize');
console.log(windowSize);
return {
cols: Math.floor((windowSize.width - charSize.left) / 10),
rows: Math.floor((windowSize.height - charSize.top) / 17)
};
}
/** init websocket **/
function initWs (ip, port, agentId) {
var protocol= location.protocol === 'https:' ? 'wss://' : 'ws://';
var path = protocol + ip + ':' + port + '/ws?method=connectArthas&id=' + agentId;
ws = new WebSocket(path);
}
/** init xterm **/
function initXterm (cols, rows) {
xterm = new Terminal({
cols: cols,
rows: rows,
screenReaderMode: true,
rendererType: 'canvas',
convertEol: true
});
}
/** 有修改 begin connect **/
function startConnect (silent) {
var ip = $('#ip').val();
var port = $('#port').val();
var agentId = $('#selectServer').val();
if (ip == '' || port == '') {
alert('Ip or port can not be empty');
return;
}
if (agentId == '') {
if (silent) {
return;
}
alert('AgentId can not be empty');
return;
}
if (ws != null) {
alert('Already connected');
return;
}
// init webSocket
initWs(ip, port, agentId);
ws.onerror = function () {
ws.close();
ws = null;
!silent && alert('Connect error');
};
ws.onclose = function (message) {
if (message.code === 2000) {
alert(message.reason);
}
};
ws.onopen = function () {
console.log('open');
$('#fullSc').show();
var terminalSize = getTerminalSize()
console.log('terminalSize')
console.log(terminalSize)
// init xterm
initXterm(terminalSize.cols, terminalSize.rows)
ws.onmessage = function (event) {
if (event.type === 'message') {
var data = event.data;
xterm.write(data);
}
};
xterm.open(document.getElementById('terminal'));
xterm.on('data', function (data) {
ws.send(JSON.stringify({action: 'read', data: data}))
});
ws.send(JSON.stringify({action: 'resize', cols: terminalSize.cols, rows: terminalSize.rows}));
window.setInterval(function () {
if (ws != null && ws.readyState === 1) {
ws.send(JSON.stringify({action: 'read', data: ""}));
}
}, 30000);
}
}
function disconnect () {
try {
ws.close();
ws.onmessage = null;
ws.onclose = null;
ws = null;
xterm.destroy();
$('#fullSc').hide();
alert('Connection was closed successfully!');
} catch (e) {
alert('No connection, please start connect first.');
}
}
/** full screen show **/
function xtermFullScreen () {
var ele = document.getElementById('terminal-card');
requestFullScreen(ele);
}
function requestFullScreen (element) {
var requestMethod = element.requestFullScreen || element.webkitRequestFullScreen || element.mozRequestFullScreen || element.msRequestFullScreen;
if (requestMethod) {
requestMethod.call(element);
} else if (typeof window.ActiveXObject !== "undefined") {
var wscript = new ActiveXObject("WScript.Shell");
if (wscript !== null) {
wscript.SendKeys("{F11}");
}
}
}其他文件
jquery-3.3.1.min.js 新加 Js
copy 過(guò)來(lái)的 js
popper-1.14.6.min.js
web-console.js
xterm.css
xterm.js
bootstrap.yml
# arthas端口 arthas: server: port: 9898
這樣子，admin 端的配置完成了。
在配置中心加入配置
#arthas服務(wù)端域名
arthas.tunnel-server = ws://admin域名/ws
#客戶端id,應(yīng)用名@隨機(jī)值，js會(huì)截取前面的應(yīng)用名
arthas.agent-id = ${spring.application.name}@${random.value}
#arthas開(kāi)關(guān)，可以在需要調(diào)式的時(shí)候開(kāi)啟，不需要的時(shí)候關(guān)閉
spring.arthas.enabled = false需要自動(dòng) Attach 的應(yīng)用中引入 Arthas-spring-boot-starter 需要對(duì) Starter 進(jìn)行部分修改，要將注冊(cè) Arthas 的部分移除，下面是修改后的文件。
這里是將修改后的文件重新打包成 Jar 包，上傳到私服，但有些應(yīng)用會(huì)有無(wú)法加載 ArthasConfigMap 的情況，可以將這兩個(gè)文件單獨(dú)放到項(xiàng)目的公共包中。
@EnableConfigurationProperties({ ArthasProperties.class })
public class ArthasConfiguration {
private static final Logger logger = LoggerFactory.getLogger(ArthasConfiguration.class);
@ConfigurationProperties(prefix = "arthas")
@ConditionalOnMissingBean
@Bean
public HashMap<String, String> arthasConfigMap() {
return new HashMap<String, String>();
}
}@ConfigurationProperties(prefix = "arthas")
public class ArthasProperties {
private String ip;
private int telnetPort;
private int httpPort;
private String tunnelServer;
private String agentId;
/**
* report executed command
*/
private String statUrl;
/**
* session timeout seconds
*/
private long sessionTimeout;
private String home;
/**
* when arthas agent init error will throw exception by default.
*/
private boolean slientInit = false;
public String getHome() {
return home;
}
public void setHome(String home) {
this.home = home;
}
public boolean isSlientInit() {
return slientInit;
}
public void setSlientInit(boolean slientInit) {
this.slientInit = slientInit;
}
public String getIp() {
return ip;
}
public void setIp(String ip) {
this.ip = ip;
}
public int getTelnetPort() {
return telnetPort;
}
public void setTelnetPort(int telnetPort) {
this.telnetPort = telnetPort;
}
public int getHttpPort() {
return httpPort;
}
public void setHttpPort(int httpPort) {
this.httpPort = httpPort;
}
public String getTunnelServer() {
return tunnelServer;
}
public void setTunnelServer(String tunnelServer) {
this.tunnelServer = tunnelServer;
}
public String getAgentId() {
return agentId;
}
public void setAgentId(String agentId) {
this.agentId = agentId;
}
public String getStatUrl() {
return statUrl;
}
public void setStatUrl(String statUrl) {
this.statUrl = statUrl;
}
public long getSessionTimeout() {
return sessionTimeout;
}
public void setSessionTimeout(long sessionTimeout) {
this.sessionTimeout = sessionTimeout;
}
}實(shí)現(xiàn)開(kāi)關(guān)效果
為了實(shí)現(xiàn)開(kāi)關(guān)效果，還需要一個(gè)文件用來(lái)監(jiān)聽(tīng)配置文件的改變。
我這里使用的是在 SBA 中改變環(huán)境變量，對(duì)應(yīng)服務(wù)監(jiān)聽(tīng)到變量改變，當(dāng)監(jiān)聽(tīng) spring.arthas.enabled 為 true 的時(shí)候，注冊(cè) Arthas，到下面是代碼。
@Component
public class EnvironmentChangeListener implements ApplicationListener<EnvironmentChangeEvent> {
@Autowired
private Environment env;
@Autowired
private Map<String, String> arthasConfigMap;
@Autowired
private ArthasProperties arthasProperties;
@Autowired
private ApplicationContext applicationContext;
@Override
public void onApplicationEvent(EnvironmentChangeEvent event) {
Set<String> keys = event.getKeys();
for (String key : keys) {
if ("spring.arthas.enabled".equals(key)) {
if ("true".equals(env.getProperty(key))) {
registerArthas();
}
}
}
}
private void registerArthas() {
DefaultListableBeanFactory defaultListableBeanFactory = (DefaultListableBeanFactory) applicationContext.getAutowireCapableBeanFactory();
String bean = "arthasAgent";
if (defaultListableBeanFactory.containsBean(bean)) {
((ArthasAgent)defaultListableBeanFactory.getBean(bean)).init();
return;
}
defaultListableBeanFactory.registerSingleton(bean, arthasAgentInit());
}
private ArthasAgent arthasAgentInit() {
arthasConfigMap = StringUtils.removeDashKey(arthasConfigMap);
// 給配置全加上前綴
Map<String, String> mapWithPrefix = new HashMap<String, String>(arthasConfigMap.size());
for (Map.Entry<String, String> entry : arthasConfigMap.entrySet()) {
mapWithPrefix.put("arthas." + entry.getKey(), entry.getValue());
}
final ArthasAgent arthasAgent = new ArthasAgent(mapWithPrefix, arthasProperties.getHome(),
arthasProperties.isSlientInit(), null);
arthasAgent.init();
return arthasAgent;
}
}到此可以愉快的在 SBA 中調(diào)式應(yīng)用了，看看最后的頁(yè)面。
調(diào)式流程
流程如下：
開(kāi)啟 Arthas
在 Select Application 中選擇應(yīng)用
Connect 連接應(yīng)用
DisConnect 斷開(kāi)應(yīng)用
Release 釋放配置文件
一些缺陷：
使用 jar 包的方式引入應(yīng)用，具有一定的侵略性，如果 Arthas 無(wú)法啟動(dòng)，會(huì)導(dǎo)致應(yīng)用也無(wú)法啟動(dòng)。
如果使用 Docker，需要適當(dāng)調(diào)整 JVM 內(nèi)存，防止開(kāi)啟 Arthas、調(diào)試的時(shí)候，內(nèi)存炸了。
沒(méi)有使用 SBA 插件的方式集成如上集成僅供參考，請(qǐng)根據(jù)自己企業(yè)的情況來(lái)集成。
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