|
|
<!DOCTYPE html>
|
|
|
<html lang="zh-CN">
|
|
|
<head>
|
|
|
<meta charset="utf-8">
|
|
|
<meta name="viewport" content="width=device-width,initial-scale=1">
|
|
|
<meta name="generator" content="VuePress 2.0.0-beta.51">
|
|
|
<style>
|
|
|
:root {
|
|
|
--c-bg: #fff;
|
|
|
}
|
|
|
html.dark {
|
|
|
--c-bg: #22272e;
|
|
|
}
|
|
|
html, body {
|
|
|
background-color: var(--c-bg);
|
|
|
}
|
|
|
</style>
|
|
|
<script>
|
|
|
const userMode = localStorage.getItem('vuepress-color-scheme');
|
|
|
const systemDarkMode = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
|
|
|
if (userMode === 'dark' || (userMode !== 'light' && systemDarkMode)) {
|
|
|
document.documentElement.classList.toggle('dark', true);
|
|
|
}
|
|
|
</script>
|
|
|
<link rel="icon" href="/images/favicon.ico"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta property="og:title" content="Arthas"><meta property="og:image:alt" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta property="og:image" content="/images/arthas_mate_image.png"><meta property="og:description" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta property="og:image:width" content="1200"><meta property="og:image:height" content="600"><meta property="twitter:image:src" content="/images/arthas_mate_image.png"><meta property="twitter:image:alt" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta itemprop="name" content="Arthas"><meta itemprop="image" content="/images/arthas_mate_image.png"><meta itemprop="description" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><script>
|
|
|
var _hmt = _hmt || [];
|
|
|
(function() {
|
|
|
var hm = document.createElement("script");
|
|
|
hm.src = "https://hm.baidu.com/hm.js?d5c5e25b100f0eb51a4c35c8a86ea9b4";
|
|
|
var s = document.getElementsByTagName("script")[0];
|
|
|
s.parentNode.insertBefore(hm, s);
|
|
|
})();
|
|
|
</script><meta name="aes-config" content="pid=xux-opensource&user_type=101&uid=&username=&dim10=arthas"><script src="//g.alicdn.com/alilog/mlog/aplus_v2.js" id="beacon-aplus" exparams="clog=o&aplus&sidx=aplusSidx&ckx=aplusCkx"></script><script src="//g.alicdn.com/aes/??tracker/1.0.34/index.js,tracker-plugin-pv/2.4.5/index.js,tracker-plugin-event/1.2.5/index.js,tracker-plugin-jserror/1.0.13/index.js,tracker-plugin-api/1.1.14/index.js,tracker-plugin-perf/1.1.8/index.js,tracker-plugin-eventTiming/1.0.4/index.js"></script><title>watch | arthas</title><meta name="description" content="arthas 使用文档">
|
|
|
<link rel="modulepreload" href="/assets/app.5024572d.js"><link rel="modulepreload" href="/assets/watch.html.6bbe9bc3.js"><link rel="modulepreload" href="/assets/watch.html.8ab01f20.js"><link rel="prefetch" href="/assets/index.html.0310d6b7.js"><link rel="prefetch" href="/assets/index.html.26b36e14.js"><link rel="prefetch" href="/assets/index.html.f81666f3.js"><link rel="prefetch" href="/assets/advanced-use.html.d19ed71d.js"><link rel="prefetch" href="/assets/advice-class.html.1d3efc8d.js"><link rel="prefetch" href="/assets/agent.html.03c76533.js"><link rel="prefetch" href="/assets/arthas-properties.html.0a68e303.js"><link rel="prefetch" href="/assets/arthas3.html.e9ff98d3.js"><link rel="prefetch" href="/assets/async.html.2d7e17b7.js"><link rel="prefetch" href="/assets/auth.html.e6d4b91c.js"><link rel="prefetch" href="/assets/base64.html.867d2b97.js"><link rel="prefetch" href="/assets/batch-support.html.520a314a.js"><link rel="prefetch" href="/assets/cat.html.0e3f9bec.js"><link rel="prefetch" href="/assets/classloader.html.abb8c597.js"><link rel="prefetch" href="/assets/cls.html.67a6c0fd.js"><link rel="prefetch" href="/assets/commands.html.03ccce33.js"><link rel="prefetch" href="/assets/contact-us.html.fca90e78.js"><link rel="prefetch" href="/assets/dashboard.html.a1edecce.js"><link rel="prefetch" href="/assets/docker.html.71dad61b.js"><link rel="prefetch" href="/assets/download.html.d73305eb.js"><link rel="prefetch" href="/assets/dump.html.c3686557.js"><link rel="prefetch" href="/assets/echo.html.47b2931c.js"><link rel="prefetch" href="/assets/faq.html.6193ecbd.js"><link rel="prefetch" href="/assets/getstatic.html.90b40e46.js"><link rel="prefetch" href="/assets/grep.html.36066f19.js"><link rel="prefetch" href="/assets/groovy.html.041e64fb.js"><link rel="prefetch" href="/assets/heapdump.html.5f1f0a0f.js"><link rel="prefetch" href="/assets/help.html.cc8081c7.js"><link rel="prefetch" href="/assets/history.html.799a682b.js"><link rel="prefetch" href="/assets/http-api.html.6176e7ac.js"><link rel="prefetch" href="/assets/idea-plugin.html.a7268a5f.js"><link rel="prefetch" href="/assets/install-detail.html.8e837092.js"><link rel="prefetch" href="/assets/jad.html.2f34aa50.js"><link rel="prefetch" href="/assets/jfr.html.9b233b9d.js"><link rel="prefetch" href="/assets/jvm.html.66acd429.js"><link rel="prefetch" href="/assets/keymap.html.7cd121a8.js"><link rel="prefetch" href="/assets/logger.html.2598a2ad.js"><link rel="prefetch" href="/assets/manual-install.html.b48552bf.js"><link rel="prefetch" href="/assets/mbean.html.865d8303.js"><link rel="prefetch" href="/assets/mc.html.417d96c3.js"><link rel="prefetch" href="/assets/memory.html.bb61b4be.js"><link rel="prefetch" href="/assets/monitor.html.8168838f.js"><link rel="prefetch" href="/assets/ognl.html.5a4b1f35.js"><link rel="prefetch" href="/assets/options.html.4862477c.js"><link rel="prefetch" href="/assets/perfcounter.html.96e8509c.js"><link rel="prefetch" href="/assets/profiler.html.3785275e.js"><link rel="prefetch" href="/assets/pwd.html.9d18ed39.js"><link rel="prefetch" href="/assets/quick-start.html.faa996a0.js"><link rel="prefetch" href="/assets/quit.html.99d279b0.js"><link rel="prefetch" href="/assets/redefine.html.c75cc086.js"><link rel="prefetch" href="/assets/release-notes.html.3c31db7c.js"><link rel="prefetch" href="/assets/reset.html.5a9cddf1.js"><link rel="prefetch" href="/assets/retransform.html.ce38448b.js"><link rel="prefetch" href="/assets/save-log.html.037bac18.js"><link rel="prefetch" href="/assets/sc.html.556dbf54.js"><link rel="prefetch" href="/assets/session.html.3205414e.js"><link rel="prefetch" href="/assets/sm.html.87672a15.js"><link rel="prefetch" href="/assets/spring-boot-starter.html.e00635b2.js"><link rel="prefetch" href="/assets/stack.html.82c27723.js"><link rel="prefetch" href="/assets/start-arthas.html.8895ebb1.js"><link rel="prefetch" href="/assets/stop.html.37513358.js"><link rel="prefetch" href="/assets/sysenv.html.fae02d4a.js"><link rel="prefetch" href="/assets/sysprop.html.0c2447a7.js"><link rel="prefetch" href="/assets/tee.html.65a6dcbf.js"><link rel="prefetch" href="/assets/thread.html.7d4f783c.js"><link rel="prefetch" href="/assets/trace.html.7fc97a55.js"><link rel="prefetch" href="/assets/tt.html.2f8ba6a9.js"><link rel="prefetch" href="/assets/tunnel.html.f6c95c19.js"><link rel="prefetch" href="/assets/version.html.65d1d217.js"><link rel="prefetch" href="/assets/vmoption.html.4a4452fc.js"><link rel="prefetch" href="/assets/vmtool.html.785e15b0.js"><link rel="prefetch" href="/assets/web-console.html.ee889bc8.js"><link rel="prefetch" href="/assets/index.html.4473f26b.js"><link rel="prefetch" href="/assets/advanced-use.html.1a28f6a5.js"><link rel="prefetch" href="/assets/advice-class.html.d8ad50b3.js"><link rel="prefetch" href="/assets/agent.html.7961745e.js"><link rel="prefetch" href="/assets/arthas-properties.html.8021fe71.js"><link rel="prefetch" href="/assets/async.html.cee6c639.js"><link rel="prefetch" href="/assets/auth.html.d9567203.js"><link rel="prefetch" href="/assets/base64.html.f23d1c1a.js"><link rel="prefetch" href="/assets/batch-support.html.316cd7e8.js"><link rel="prefetch" href="/assets/cat.html.4335c5dc.js"><link rel="prefetch" href="/assets/classloader.html.bf7956ab.js"><link rel="prefetch" href="/assets/cls.html.97d2b84f.js"><link rel="prefetch" href="/assets/commands.html.15628afe.js"><link rel="prefetch" href="/assets/contact-us.html.903f2e33.js"><link rel="prefetch" href="/assets/dashboard.html.bcc51fa6.js"><link rel="prefetch" href="/assets/docker.html.6569bd54.js"><link rel="prefetch" href="/assets/download.html.c6ec554d.js"><link rel="prefetch" href="/assets/dump.html.ceb6ce3f.js"><link rel="prefetch" href="/assets/echo.html.78d074ba.js"><link rel="prefetch" href="/assets/faq.html.ae91bbb1.js"><link rel="prefetch" href="/assets/getstatic.html.238af461.js"><link rel="prefetch" href="/assets/grep.html.765b9db4.js"><link rel="prefetch" href="/assets/groovy.html.07ba29d4.js"><link rel="prefetch" href="/assets/heapdump.html.45aa4058.js"><link rel="prefetch" href="/assets/help.html.6b5e680d.js"><link rel="prefetch" href="/assets/history.html.cbd4f1dc.js"><link rel="prefetch" href="/assets/http-api.html.08106e49.js"><link rel="prefetch" href="/assets/idea-plugin.html.696d1a9b.js"><link rel="prefetch" href="/assets/install-detail.html.ada22454.js"><link rel="prefetch" href="/assets/jad.html.a61a52e4.js"><link rel="prefetch" href="/assets/jfr.html.a65beb58.js"><link rel="prefetch" href="/assets/jvm.html.b8b1aa17.js"><link rel="prefetch" href="/assets/keymap.html.4b97d548.js"><link rel="prefetch" href="/assets/logger.html.4c886eeb.js"><link rel="prefetch" href="/assets/manual-install.html.b1712f99.js"><link rel="prefetch" href="/assets/mbean.html.e50ffcee.js"><link rel="prefetch" href="/assets/mc.html.aa0438cf.js"><link rel="prefetch" href="/assets/memory.html.bc85782d.js"><link rel="prefetch" href="/assets/monitor.html.c8fd104a.js"><link rel="prefetch" href="/assets/ognl.html.5fa32203.js"><link rel="prefetch" href="/assets/options.html.e9d3bf7d.js"><link rel="prefetch" href="/assets/perfcounter.html.6022385f.js"><link rel="prefetch" href="/assets/profiler.html.6187e56a.js"><link rel="prefetch" href="/assets/pwd.html.ac6fa9ed.js"><link rel="prefetch" href="/assets/quick-start.html.e2dbf20d.js"><link rel="prefetch" href="/assets/quit.html.3576a0df.js"><link rel="prefetch" href="/assets/redefine.html.647030fe.js"><link rel="prefetch" href="/assets/release-notes.html.9cd9ef9a.js"><link rel="prefetch" href="/assets/reset.html.aea64667.js"><link rel="prefetch" href="/assets/retransform.html.d2256f08.js"><link rel="prefetch" href="/assets/save-log.html.2e2ab47b.js"><link rel="prefetch" href="/assets/sc.html.73cdcc54.js"><link rel="prefetch" href="/assets/session.html.f299a357.js"><link rel="prefetch" href="/assets/sm.html.6fb2da77.js"><link rel="prefetch" href="/assets/spring-boot-starter.html.d3fe861a.js"><link rel="prefetch" href="/assets/stack.html.3a3543ef.js"><link rel="prefetch" href="/assets/start-arthas.html.89aedbd5.js"><link rel="prefetch" href="/assets/stop.html.375aab78.js"><link rel="prefetch" href="/assets/sysenv.html.eebfa441.js"><link rel="prefetch" href="/assets/sysprop.html.d2af9b76.js"><link rel="prefetch" href="/assets/tee.html.3b901b19.js"><link rel="prefetch" href="/assets/thread.html.7bd6ce5a.js"><link rel="prefetch" href="/assets/trace.html.1816b5e5.js"><link rel="prefetch" href="/assets/tt.html.9fd40d2c.js"><link rel="prefetch" href="/assets/tunnel.html.c4dbd72e.js"><link rel="prefetch" href="/assets/version.html.94606777.js"><link rel="prefetch" href="/assets/vmoption.html.07f6d06f.js"><link rel="prefetch" href="/assets/vmtool.html.6ca46c5c.js"><link rel="prefetch" href="/assets/watch.html.61dde141.js"><link rel="prefetch" href="/assets/web-console.html.7f55a6b5.js"><link rel="prefetch" href="/assets/intro.html.fb69e77b.js"><link rel="prefetch" href="/assets/user-question-history11440.html.0050c901.js"><link rel="prefetch" href="/assets/user-question-history11442.html.2b6f935c.js"><link rel="prefetch" href="/assets/user-question-history11443.html.f6cd4964.js"><link rel="prefetch" href="/assets/user-question-history11444.html.ce992129.js"><link rel="prefetch" href="/assets/user-question-history11450.html.2756279b.js"><link rel="prefetch" href="/assets/user-question-history11451.html.3d594a86.js"><link rel="prefetch" href="/assets/user-question-history11452.html.e94aac28.js"><link rel="prefetch" href="/assets/user-question-history11453.html.8a135789.js"><link rel="prefetch" href="/assets/user-question-history11454.html.7bbd3f53.js"><link rel="prefetch" href="/assets/user-question-history11466.html.6a554403.js"><link rel="prefetch" href="/assets/user-question-history11467.html.dfe7d3f0.js"><link rel="prefetch" href="/assets/user-question-history11468.html.07400649.js"><link rel="prefetch" href="/assets/user-question-history11469.html.267c96b6.js"><link rel="prefetch" href="/assets/user-question-history11784.html.56fcf97f.js"><link rel="prefetch" href="/assets/user-question-history11795.html.d21e8e72.js"><link rel="prefetch" href="/assets/user-question-history11809.html.47e34f67.js"><link rel="prefetch" href="/assets/user-question-history11810.html.3f2e0760.js"><link rel="prefetch" href="/assets/user-question-history11814.html.89c2563e.js"><link rel="prefetch" href="/assets/user-question-history12453.html.163bc9ad.js"><link rel="prefetch" href="/assets/user-question-history12454.html.fcccb708.js"><link rel="prefetch" href="/assets/user-question-history12455.html.3aed1fc8.js"><link rel="prefetch" href="/assets/user-question-history12706.html.3cf454ba.js"><link rel="prefetch" href="/assets/user-question-history12715.html.824bab31.js"><link rel="prefetch" href="/assets/user-question-history12716.html.aea93112.js"><link rel="prefetch" href="/assets/user-question-history12740.html.6d3a85f1.js"><link rel="prefetch" href="/assets/user-question-history12741.html.7155ebde.js"><link rel="prefetch" href="/assets/user-question-history13448.html.a659e900.js"><link rel="prefetch" href="/assets/user-question-history13504.html.f86b0c17.js"><link rel="prefetch" href="/assets/user-question-history13506.html.756c0aef.js"><link rel="prefetch" href="/assets/user-question-history13507.html.b410fde5.js"><link rel="prefetch" href="/assets/user-question-history13508.html.3cfbd3ac.js"><link rel="prefetch" href="/assets/user-question-history13509.html.be494725.js"><link rel="prefetch" href="/assets/user-question-history13510.html.4b10ee98.js"><link rel="prefetch" href="/assets/user-question-history13511.html.a4c61493.js"><link rel="prefetch" href="/assets/user-question-history13512.html.e198ca8d.js"><link rel="prefetch" href="/assets/user-question-history13513.html.e75202ae.js"><link rel="prefetch" href="/assets/user-question-history13522.html.46939f73.js"><link rel="prefetch" href="/assets/user-question-history14763.html.140717c7.js"><link rel="prefetch" href="/assets/user-question-history14831.html.de4216e5.js"><link rel="prefetch" href="/assets/user-question-history14832.html.22fc1910.js"><link rel="prefetch" href="/assets/user-question-history14833.html.b17c1b6b.js"><link rel="prefetch" href="/assets/user-question-history14834.html.e96bfd10.js"><link rel="prefetch" href="/assets/user-question-history14840.html.b43bc59a.js"><link rel="prefetch" href="/assets/user-question-history14843.html.f49a7feb.js"><link rel="prefetch" href="/assets/user-question-history15167.html.1f0041fe.js"><link rel="prefetch" href="/assets/user-question-history15543.html.8f8a0315.js"><link rel="prefetch" href="/assets/user-question-history15726.html.fd6ce750.js"><link rel="prefetch" href="/assets/user-question-history15728.html.ccdc912d.js"><link rel="prefetch" href="/assets/user-question-history15729.html.471a1b8f.js"><link rel="prefetch" href="/assets/user-question-history15730.html.bd03a518.js"><link rel="prefetch" href="/assets/user-question-history15731.html.559f9f08.js"><link rel="prefetch" href="/assets/user-question-history15735.html.80cab5b9.js"><link rel="prefetch" href="/assets/user-question-history15736.html.412f1499.js"><link rel="prefetch" href="/assets/user-question-history15737.html.18923199.js"><link rel="prefetch" href="/assets/user-question-history15738.html.6ceeca93.js"><link rel="prefetch" href="/assets/user-question-history15739.html.86e3a2dc.js"><link rel="prefetch" href="/assets/user-question-history15740.html.e1844f14.js"><link rel="prefetch" href="/assets/404.html.954ede21.js"><link rel="prefetch" href="/assets/index.html.30ce3385.js"><link rel="prefetch" href="/assets/index.html.a40e9b51.js"><link rel="prefetch" href="/assets/index.html.d646c9e0.js"><link rel="prefetch" href="/assets/advanced-use.html.69173a07.js"><link rel="prefetch" href="/assets/advice-class.html.44dc3045.js"><link rel="prefetch" href="/assets/agent.html.76c735d0.js"><link rel="prefetch" href="/assets/arthas-properties.html.81d42c35.js"><link rel="prefetch" href="/assets/arthas3.html.0b19650f.js"><link rel="prefetch" href="/assets/async.html.dda2afae.js"><link rel="prefetch" href="/assets/auth.html.07bdc876.js"><link rel="prefetch" href="/assets/base64.html.bcead116.js"><link rel="prefetch" href="/assets/batch-support.html.4641bd67.js"><link rel="prefetch" href="/assets/cat.html.17a41250.js"><link rel="prefetch" href="/assets/classloader.html.4284e89d.js"><link rel="prefetch" href="/assets/cls.html.7418b29d.js"><link rel="prefetch" href="/assets/commands.html.9195266b.js"><link rel="prefetch" href="/assets/contact-us.html.5761289f.js"><link rel="prefetch" href="/assets/dashboard.html.a121fb6b.js"><link rel="prefetch" href="/assets/docker.html.03d1872a.js"><link rel="prefetch" href="/assets/download.html.17050c97.js"><link rel="prefetch" href="/assets/dump.html.150553f5.js"><link rel="prefetch" href="/assets/echo.html.b6e5f092.js"><link rel="prefetch" href="/assets/faq.html.0adab3f6.js"><link rel="prefetch" href="/assets/getstatic.html.585460ac.js"><link rel="prefetch" href="/assets/grep.html.7bfe65a7.js"><link rel="prefetch" href="/assets/groovy.html.9814fe6a.js"><link rel="prefetch" href="/assets/heapdump.html.03900a35.js"><link rel="prefetch" href="/assets/help.html.1a9f5df9.js"><link rel="prefetch" href="/assets/history.html.7fdc3fbc.js"><link rel="prefetch" href="/assets/http-api.html.d43050d6.js"><link rel="prefetch" href="/assets/idea-plugin.html.eaa87fb3.js"><link rel="prefetch" href="/assets/install-detail.html.c7db59fe.js"><link rel="prefetch" href="/assets/jad.html.538333fc.js"><link rel="prefetch" href="/assets/jfr.html.5892aad4.js"><link rel="prefetch" href="/assets/jvm.html.a09c582f.js"><link rel="prefetch" href="/assets/keymap.html.f350d350.js"><link rel="prefetch" href="/assets/logger.html.77aef58f.js"><link rel="prefetch" href="/assets/manual-install.html.b52b3383.js"><link rel="prefetch" href="/assets/mbean.html.fb10ca7f.js"><link rel="prefetch" href="/assets/mc.html.5651a161.js"><link rel="prefetch" href="/assets/memory.html.51f06c97.js"><link rel="prefetch" href="/assets/monitor.html.0c917472.js"><link rel="prefetch" href="/assets/ognl.html.51c27cdf.js"><link rel="prefetch" href="/assets/options.html.061c0499.js"><link rel="prefetch" href="/assets/perfcounter.html.7a2e7783.js"><link rel="prefetch" href="/assets/profiler.html.7d7d2c16.js"><link rel="prefetch" href="/assets/pwd.html.94331a5b.js"><link rel="prefetch" href="/assets/quick-start.html.d0d7d085.js"><link rel="prefetch" href="/assets/quit.html.07d23945.js"><link rel="prefetch" href="/assets/redefine.html.b51d4760.js"><link rel="prefetch" href="/assets/release-notes.html.97884707.js"><link rel="prefetch" href="/assets/reset.html.8d888519.js"><link rel="prefetch" href="/assets/retransform.html.33e2a183.js"><link rel="prefetch" href="/assets/save-log.html.65bbf18d.js"><link rel="prefetch" href="/assets/sc.html.b97ba863.js"><link rel="prefetch" href="/assets/session.html.f12fb284.js"><link rel="prefetch" href="/assets/sm.html.b1573b78.js"><link rel="prefetch" href="/assets/spring-boot-starter.html.62c01266.js"><link rel="prefetch" href="/assets/stack.html.f9218289.js"><link rel="prefetch" href="/assets/start-arthas.html.386fe5e8.js"><link rel="prefetch" href="/assets/stop.html.1809fc4b.js"><link rel="prefetch" href="/assets/sysenv.html.d3ed1a43.js"><link rel="prefetch" href="/assets/sysprop.html.d5a36f08.js"><link rel="prefetch" href="/assets/tee.html.100828a3.js"><link rel="prefetch" href="/assets/thread.html.1c837b34.js"><link rel="prefetch" href="/assets/trace.html.29692689.js"><link rel="prefetch" href="/assets/tt.html.23b440e4.js"><link rel="prefetch" href="/assets/tunnel.html.b5499e98.js"><link rel="prefetch" href="/assets/version.html.3e704c32.js"><link rel="prefetch" href="/assets/vmoption.html.82b62241.js"><link rel="prefetch" href="/assets/vmtool.html.aa90ec1f.js"><link rel="prefetch" href="/assets/web-console.html.dbc0dbf0.js"><link rel="prefetch" href="/assets/index.html.4201d415.js"><link rel="prefetch" href="/assets/advanced-use.html.90868e26.js"><link rel="prefetch" href="/assets/advice-class.html.0ca455a3.js"><link rel="prefetch" href="/assets/agent.html.251dddae.js"><link rel="prefetch" href="/assets/arthas-properties.html.938af046.js"><link rel="prefetch" href="/assets/async.html.5ce1d1ce.js"><link rel="prefetch" href="/assets/auth.html.2a003b09.js"><link rel="prefetch" href="/assets/base64.html.00f201c7.js"><link rel="prefetch" href="/assets/batch-support.html.6043e5f6.js"><link rel="prefetch" href="/assets/cat.html.6b2e0086.js"><link rel="prefetch" href="/assets/classloader.html.413109bd.js"><link rel="prefetch" href="/assets/cls.html.29b1f806.js"><link rel="prefetch" href="/assets/commands.html.e8942ef3.js"><link rel="prefetch" href="/assets/contact-us.html.4526730f.js"><link rel="prefetch" href="/assets/dashboard.html.7edf7acb.js"><link rel="prefetch" href="/assets/docker.html.03ba71a6.js"><link rel="prefetch" href="/assets/download.html.8810095d.js"><link rel="prefetch" href="/assets/dump.html.4991b48d.js"><link rel="prefetch" href="/assets/echo.html.7650a83b.js"><link rel="prefetch" href="/assets/faq.html.ea3e918c.js"><link rel="prefetch" href="/assets/getstatic.html.500e6219.js"><link rel="prefetch" href="/assets/grep.html.bf503089.js"><link rel="prefetch" href="/assets/groovy.html.49d078a1.js"><link rel="prefetch" href="/assets/heapdump.html.660526d5.js"><link rel="prefetch" href="/assets/help.html.e42cbec6.js"><link rel="prefetch" href="/assets/history.html.5ede54ab.js"><link rel="prefetch" href="/assets/http-api.html.9ba1dee0.js"><link rel="prefetch" href="/assets/idea-plugin.html.f5332dbc.js"><link rel="prefetch" href="/assets/install-detail.html.71fdac53.js"><link rel="prefetch" href="/assets/jad.html.6c5585d2.js"><link rel="prefetch" href="/assets/jfr.html.10e316af.js"><link rel="prefetch" href="/assets/jvm.html.c7b9fd8f.js"><link rel="prefetch" href="/assets/keymap.html.97636b0c.js"><link rel="prefetch" href="/assets/logger.html.ab691e29.js"><link rel="prefetch" href="/assets/manual-install.html.a031e342.js"><link rel="prefetch" href="/assets/mbean.html.9062fe0b.js"><link rel="prefetch" href="/assets/mc.html.c72bf29a.js"><link rel="prefetch" href="/assets/memory.html.911264fb.js"><link rel="prefetch" href="/assets/monitor.html.b861dd2b.js"><link rel="prefetch" href="/assets/ognl.html.d4bc1bc8.js"><link rel="prefetch" href="/assets/options.html.9e19bd7d.js"><link rel="prefetch" href="/assets/perfcounter.html.e3509839.js"><link rel="prefetch" href="/assets/profiler.html.9a5939c8.js"><link rel="prefetch" href="/assets/pwd.html.8c00c7c7.js"><link rel="prefetch" href="/assets/quick-start.html.17597d6b.js"><link rel="prefetch" href="/assets/quit.html.f2004fd3.js"><link rel="prefetch" href="/assets/redefine.html.8f763ba4.js"><link rel="prefetch" href="/assets/release-notes.html.ceca27da.js"><link rel="prefetch" href="/assets/reset.html.531c57ec.js"><link rel="prefetch" href="/assets/retransform.html.883cb847.js"><link rel="prefetch" href="/assets/save-log.html.10fd1804.js"><link rel="prefetch" href="/assets/sc.html.e5ed7927.js"><link rel="prefetch" href="/assets/session.html.792ab981.js"><link rel="prefetch" href="/assets/sm.html.b6c4fc05.js"><link rel="prefetch" href="/assets/spring-boot-starter.html.4487a31e.js"><link rel="prefetch" href="/assets/stack.html.b1dc93b3.js"><link rel="prefetch" href="/assets/start-arthas.html.0c0dcba7.js"><link rel="prefetch" href="/assets/stop.html.b94ef499.js"><link rel="prefetch" href="/assets/sysenv.html.dd2920eb.js"><link rel="prefetch" href="/assets/sysprop.html.9ee76be9.js"><link rel="prefetch" href="/assets/tee.html.690e39e8.js"><link rel="prefetch" href="/assets/thread.html.989bc148.js"><link rel="prefetch" href="/assets/trace.html.272a5864.js"><link rel="prefetch" href="/assets/tt.html.5ad78537.js"><link rel="prefetch" href="/assets/tunnel.html.59bde372.js"><link rel="prefetch" href="/assets/version.html.1fb9c5ad.js"><link rel="prefetch" href="/assets/vmoption.html.4f720b39.js"><link rel="prefetch" href="/assets/vmtool.html.a6a8ee75.js"><link rel="prefetch" href="/assets/watch.html.06497348.js"><link rel="prefetch" href="/assets/web-console.html.1d818a20.js"><link rel="prefetch" href="/assets/intro.html.0082fd51.js"><link rel="prefetch" href="/assets/user-question-history11440.html.fb0525c1.js"><link rel="prefetch" href="/assets/user-question-history11442.html.e0a55c65.js"><link rel="prefetch" href="/assets/user-question-history11443.html.d1528876.js"><link rel="prefetch" href="/assets/user-question-history11444.html.e2b6bc77.js"><link rel="prefetch" href="/assets/user-question-history11450.html.2b09f6c7.js"><link rel="prefetch" href="/assets/user-question-history11451.html.c76df7ae.js"><link rel="prefetch" href="/assets/user-question-history11452.html.9879b76b.js"><link rel="prefetch" href="/assets/user-question-history11453.html.2e92595b.js"><link rel="prefetch" href="/assets/user-question-history11454.html.f568c6c3.js"><link rel="prefetch" href="/assets/user-question-history11466.html.3fc8a828.js"><link rel="prefetch" href="/assets/user-question-history11467.html.bb6b861a.js"><link rel="prefetch" href="/assets/user-question-history11468.html.46029e3a.js"><link rel="prefetch" href="/assets/user-question-history11469.html.ab94d023.js"><link rel="prefetch" href="/assets/user-question-history11784.html.a62744ce.js"><link rel="prefetch" href="/assets/user-question-history11795.html.a7d68a33.js"><link rel="prefetch" href="/assets/user-question-history11809.html.f163cb5f.js"><link rel="prefetch" href="/assets/user-question-history11810.html.38c867bc.js"><link rel="prefetch" href="/assets/user-question-history11814.html.225c060b.js"><link rel="prefetch" href="/assets/user-question-history12453.html.36bebf20.js"><link rel="prefetch" href="/assets/user-question-history12454.html.3ee1574c.js"><link rel="prefetch" href="/assets/user-question-history12455.html.4d2487f7.js"><link rel="prefetch" href="/assets/user-question-history12706.html.5d0d9e70.js"><link rel="prefetch" href="/assets/user-question-history12715.html.fe834021.js"><link rel="prefetch" href="/assets/user-question-history12716.html.86dedfd1.js"><link rel="prefetch" href="/assets/user-question-history12740.html.58af5398.js"><link rel="prefetch" href="/assets/user-question-history12741.html.d9c4d211.js"><link rel="prefetch" href="/assets/user-question-history13448.html.8cc59a67.js"><link rel="prefetch" href="/assets/user-question-history13504.html.b57725ff.js"><link rel="prefetch" href="/assets/user-question-history13506.html.0039dbf9.js"><link rel="prefetch" href="/assets/user-question-history13507.html.2c3580b6.js"><link rel="prefetch" href="/assets/user-question-history13508.html.611f806a.js"><link rel="prefetch" href="/assets/user-question-history13509.html.25c5b6f6.js"><link rel="prefetch" href="/assets/user-question-history13510.html.cc949a92.js"><link rel="prefetch" href="/assets/user-question-history13511.html.6a3406dd.js"><link rel="prefetch" href="/assets/user-question-history13512.html.b13b9408.js"><link rel="prefetch" href="/assets/user-question-history13513.html.db786eb4.js"><link rel="prefetch" href="/assets/user-question-history13522.html.d86e15d9.js"><link rel="prefetch" href="/assets/user-question-history14763.html.e50d35b1.js"><link rel="prefetch" href="/assets/user-question-history14831.html.5aaf9c3b.js"><link rel="prefetch" href="/assets/user-question-history14832.html.851282a7.js"><link rel="prefetch" href="/assets/user-question-history14833.html.37da3c74.js"><link rel="prefetch" href="/assets/user-question-history14834.html.f09d5dea.js"><link rel="prefetch" href="/assets/user-question-history14840.html.e8ff334a.js"><link rel="prefetch" href="/assets/user-question-history14843.html.77cae64b.js"><link rel="prefetch" href="/assets/user-question-history15167.html.281cc072.js"><link rel="prefetch" href="/assets/user-question-history15543.html.0cbc55e8.js"><link rel="prefetch" href="/assets/user-question-history15726.html.40b6ceb9.js"><link rel="prefetch" href="/assets/user-question-history15728.html.5cfa5a28.js"><link rel="prefetch" href="/assets/user-question-history15729.html.ec291ed8.js"><link rel="prefetch" href="/assets/user-question-history15730.html.4bca5864.js"><link rel="prefetch" href="/assets/user-question-history15731.html.a3a956ae.js"><link rel="prefetch" href="/assets/user-question-history15735.html.7ea6b4e5.js"><link rel="prefetch" href="/assets/user-question-history15736.html.88204631.js"><link rel="prefetch" href="/assets/user-question-history15737.html.2c7d5321.js"><link rel="prefetch" href="/assets/user-question-history15738.html.1ec98456.js"><link rel="prefetch" href="/assets/user-question-history15739.html.2ab5138c.js"><link rel="prefetch" href="/assets/user-question-history15740.html.b1ca6209.js"><link rel="prefetch" href="/assets/404.html.49fbe4f8.js">
|
|
|
<link rel="stylesheet" href="/assets/style.cf0d4c26.css">
|
|
|
</head>
|
|
|
<body>
|
|
|
<div id="app"><!--[--><div class="theme-container"><!--[--><header class="navbar"><div class="toggle-sidebar-button" title="切换侧边栏" aria-expanded="false" role="button" tabindex="0"><div class="icon" aria-hidden="true"><span></span><span></span><span></span></div></div><span><a href="/" class="" data-v-a8869d06><!----><span class="site-name can-hide" data-v-a8869d06>arthas</span><span class="navbar-version" data-v-a8869d06>v4.0.4</span></a></span><div class="navbar-items-wrapper" style=""><!--[--><!--]--><nav class="navbar-items can-hide"><!--[--><div class="navbar-item"><a href="/" class="" aria-label="首页"><!--[--><!--]--> 首页 <!--[--><!--]--></a></div><div class="navbar-item"><a class="external-link" href="/doc/arthas-tutorials.html?language=cn&id=arthas-basics" rel="noopener noreferrer" target="_blank" aria-label="在线教程"><!--[--><!--]--><span>在线教程</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/" class="router-link-active" aria-label="文档"><!--[--><!--]--> 文档 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/commands.md" class="" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/download.md" class="" aria-label="下载"><!--[--><!--]--> 下载 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/expert/intro.md" class="" aria-label="专家答疑"><!--[--><!--]--> 专家答疑 <!--[--><!--]--></a></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="版本"><span class="title">版本</span><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="版本"><span class="title">版本</span><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a class="external-link" href="https://arthas.aliyun.com/3.x/" rel="noopener noreferrer" target="_blank" aria-label="v3.x"><!--[--><!--]--><span>v3.x</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.05L9 14l-4.3 4.3q-.275.275-.7.275q-.425 0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.05L9 14l-4.3 4.3q-.275.275-.7.275q-.425 0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a aria-current="page" href="/doc/watch.html" class="router-link-active router-link-exact-active router-link-active" aria-label="简体中文"><!--[--><!--]--> 简体中文 <!--[--><!--]--></a></li><li class="navbar-dropdown-item"><a href="/en/doc/watch.html" class="" aria-label="English"><!--[--><!--]--> English <!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><a class="external-link" href="https://github.com/alibaba/arthas" rel="noopener noreferrer" target="_blank" aria-label="GitHub"><!--[--><!--]--><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewbox="0 0 24 24" style="height:1.25rem;width:1.25rem;vertical-align:bottom;"><path fill="currentColor" d="M12 2A10 10 0 0 0 2 12c0 4.42 2.87 8.17 6.84 9.5c.5.08.66-.23.66-.5v-1.69c-2.77.6-3.36-1.34-3.36-1.34c-.46-1.16-1.11-1.47-1.11-1.47c-.91-.62.07-.6.07-.6c1 .07 1.53 1.03 1.53 1.03c.87 1.52 2.34 1.07 2.91.83c.09-.65.35-1.09.63-1.34c-2.22-.25-4.55-1.11-4.55-4.92c0-1.11.38-2 1.03-2.71c-.1-.25-.45-1.29.1-2.64c0 0 .84-.27 2.75 1.02c.79-.22 1.65-.33 2.5-.33c.85 0 1.71.11 2.5.33c1.91-1.29 2.75-1.02 2.75-1.02c.55 1.35.2 2.39.1 2.64c.65.71 1.03 1.6 1.03 2.71c0 3.82-2.34 4.66-4.57 4.91c.36.31.69.92.69 1.85V21c0 .27.16.59.67.5C19.14 20.16 22 16.42 22 12A10 10 0 0 0 12 2Z"></path></svg><!----><!--[--><!--]--></a></div><!--]--></nav><!--[--><!--]--><button class="toggle-color-mode-button" title="切换颜色模式"><svg style="" class="icon" focusable="false" viewBox="0 0 32 32"><path d="M16 12.005a4 4 0 1 1-4 4a4.005 4.005 0 0 1 4-4m0-2a6 6 0 1 0 6 6a6 6 0 0 0-6-6z" fill="currentColor"></path><path d="M5.394 6.813l1.414-1.415l3.506 3.506L8.9 10.318z" fill="currentColor"></path><path d="M2 15.005h5v2H2z" fill="currentColor"></path><path d="M5.394 25.197L8.9 21.691l1.414 1.415l-3.506 3.505z" fill="currentColor"></path><path d="M15 25.005h2v5h-2z" fill="currentColor"></path><path d="M21.687 23.106l1.414-1.415l3.506 3.506l-1.414 1.414z" fill="currentColor"></path><path d="M25 15.005h5v2h-5z" fill="currentColor"></path><path d="M21.687 8.904l3.506-3.506l1.414 1.415l-3.506 3.505z" fill="currentColor"></path><path d="M15 2.005h2v5h-2z" fill="currentColor"></path></svg><svg style="display:none;" class="icon" focusable="false" viewBox="0 0 32 32"><path d="M13.502 5.414a15.075 15.075 0 0 0 11.594 18.194a11.113 11.113 0 0 1-7.975 3.39c-.138 0-.278.005-.418 0a11.094 11.094 0 0 1-3.2-21.584M14.98 3a1.002 1.002 0 0 0-.175.016a13.096 13.096 0 0 0 1.825 25.981c.164.006.328 0 .49 0a13.072 13.072 0 0 0 10.703-5.555a1.01 1.01 0 0 0-.783-1.565A13.08 13.08 0 0 1 15.89 4.38A1.015 1.015 0 0 0 14.98 3z" fill="currentColor"></path></svg></button><div id="docsearch-container"></div></div></header><!--]--><div class="sidebar-mask"></div><!--[--><aside class="sidebar"><nav class="navbar-items"><!--[--><div class="navbar-item"><a href="/" class="" aria-label="首页"><!--[--><!--]--> 首页 <!--[--><!--]--></a></div><div class="navbar-item"><a class="external-link" href="/doc/arthas-tutorials.html?language=cn&id=arthas-basics" rel="noopener noreferrer" target="_blank" aria-label="在线教程"><!--[--><!--]--><span>在线教程</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/" class="router-link-active" aria-label="文档"><!--[--><!--]--> 文档 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/commands.md" class="" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/download.md" class="" aria-label="下载"><!--[--><!--]--> 下载 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/expert/intro.md" class="" aria-label="专家答疑"><!--[--><!--]--> 专家答疑 <!--[--><!--]--></a></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="版本"><span class="title">版本</span><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="版本"><span class="title">版本</span><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a class="external-link" href="https://arthas.aliyun.com/3.x/" rel="noopener noreferrer" target="_blank" aria-label="v3.x"><!--[--><!--]--><span>v3.x</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.05L9 14l-4.3 4.3q-.275.275-.7.275q-.425 0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.05L9 14l-4.3 4.3q-.275.275-.7.275q-.425 0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a aria-current="page" href="/doc/watch.html" class="router-link-active router-link-exact-active router-link-active" aria-label="简体中文"><!--[--><!--]--> 简体中文 <!--[--><!--]--></a></li><li class="navbar-dropdown-item"><a href="/en/doc/watch.html" class="" aria-label="English"><!--[--><!--]--> English <!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><a class="external-link" href="https://github.com/alibaba/arthas" rel="noopener noreferrer" target="_blank" aria-label="GitHub"><!--[--><!--]--><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewbox="0 0 24 24" style="height:1.25rem;width:1.25rem;vertical-align:bottom;"><path fill="currentColor" d="M12 2A10 10 0 0 0 2 12c0 4.42 2.87 8.17 6.84 9.5c.5.08.66-.23.66-.5v-1.69c-2.77.6-3.36-1.34-3.36-1.34c-.46-1.16-1.11-1.47-1.11-1.47c-.91-.62.07-.6.07-.6c1 .07 1.53 1.03 1.53 1.03c.87 1.52 2.34 1.07 2.91.83c.09-.65.35-1.09.63-1.34c-2.22-.25-4.55-1.11-4.55-4.92c0-1.11.38-2 1.03-2.71c-.1-.25-.45-1.29.1-2.64c0 0 .84-.27 2.75 1.02c.79-.22 1.65-.33 2.5-.33c.85 0 1.71.11 2.5.33c1.91-1.29 2.75-1.02 2.75-1.02c.55 1.35.2 2.39.1 2.64c.65.71 1.03 1.6 1.03 2.71c0 3.82-2.34 4.66-4.57 4.91c.36.31.69.92.69 1.85V21c0 .27.16.59.67.5C19.14 20.16 22 16.42 22 12A10 10 0 0 0 12 2Z"></path></svg><!----><!--[--><!--]--></a></div><!--]--></nav><!--[--><!--]--><ul class="sidebar-items"><!--[--><li><p tabindex="0" class="sidebar-item sidebar-heading active">文档 <!----></p><ul style="" class="sidebar-item-children"><!--[--><li><a href="/doc/" class="router-link-active sidebar-item" aria-label="简介"><!--[--><!--]--> 简介 <!--[--><!--]--></a><!----></li><li><a href="/doc/quick-start.html" class="sidebar-item" aria-label="快速入门"><!--[--><!--]--> 快速入门 <!--[--><!--]--></a><!----></li><li><a href="/doc/install-detail.html" class="sidebar-item" aria-label="Arthas Install"><!--[--><!--]--> Arthas Install <!--[--><!--]--></a><!----></li><li><a href="/doc/download.html" class="sidebar-item" aria-label="下载"><!--[--><!--]--> 下载 <!--[--><!--]--></a><!----></li><li><a href="/doc/advice-class.html" class="sidebar-item" aria-label="表达式核心变量"><!--[--><!--]--> 表达式核心变量 <!--[--><!--]--></a><!----></li><li><a href="/doc/commands.md" class="sidebar-item active collapsible" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></a><ul style="" class="sidebar-item-children"><!--[--><li><a href="/doc/auth.html" class="sidebar-item" aria-label="auth"><!--[--><!--]--> auth <!--[--><!--]--></a><!----></li><li><a href="/doc/base64.html" class="sidebar-item" aria-label="base64"><!--[--><!--]--> base64 <!--[--><!--]--></a><!----></li><li><a href="/doc/cat.html" class="sidebar-item" aria-label="cat"><!--[--><!--]--> cat <!--[--><!--]--></a><!----></li><li><a href="/doc/classloader.html" class="sidebar-item" aria-label="classloader"><!--[--><!--]--> classloader <!--[--><!--]--></a><!----></li><li><a href="/doc/cls.html" class="sidebar-item" aria-label="cls"><!--[--><!--]--> cls <!--[--><!--]--></a><!----></li><li><a href="/doc/dashboard.html" class="sidebar-item" aria-label="dashboard"><!--[--><!--]--> dashboard <!--[--><!--]--></a><!----></li><li><a href="/doc/dump.html" class="sidebar-item" aria-label="dump"><!--[--><!--]--> dump <!--[--><!--]--></a><!----></li><li><a href="/doc/echo.html" class="sidebar-item" aria-label="echo"><!--[--><!--]--> echo <!--[--><!--]--></a><!----></li><li><a href="/doc/getstatic.html" class="sidebar-item" aria-label="getstatic"><!--[--><!--]--> getstatic <!--[--><!--]--></a><!----></li><li><a href="/doc/grep.html" class="sidebar-item" aria-label="grep"><!--[--><!--]--> grep <!--[--><!--]--></a><!----></li><li><a href="/doc/heapdump.html" class="sidebar-item" aria-label="heapdump"><!--[--><!--]--> heapdump <!--[--><!--]--></a><!----></li><li><a href="/doc/help.html" class="sidebar-item" aria-label="help"><!--[--><!--]--> help <!--[--><!--]--></a><!----></li><li><a href="/doc/history.html" class="sidebar-item" aria-label="history"><!--[--><!--]--> history <!--[--><!--]--></a><!----></li><li><a href="/doc/jad.html" class="sidebar-item" aria-label="jad"><!--[--><!--]--> jad <!--[--><!--]--></a><!----></li><li><a href="/doc/jfr.html" class="sidebar-item" aria-label="jfr"><!--[--><!--]--> jfr <!--[--><!--]--></a><!----></li><li><a href="/doc/jvm.html" class="sidebar-item" aria-label="jvm"><!--[--><!--]--> jvm <!--[--><!--]--></a><!----></li><li><a href="/doc/keymap.html" class="sidebar-item" aria-label="keymap"><!--[--><!--]--> keymap <!--[--><!--]--></a><!----></li><li><a href="/doc/logger.html" class="sidebar-item" aria-label="logger"><!--[--><!--]--> logger <!--[--><!--]--></a><!----></li><li><a href="/doc/mbean.html" class="sidebar-item" aria-label="mbean"><!--[--><!--]--> mbean <!--[--><!--]--></a><!----></li><li><a href="/doc/mc.html" class="sidebar-item" aria-label="mc"><!--[--><!--]--> mc <!--[--><!--]--></a><!----></li><li><a href="/doc/memory.html" class="sidebar-item" aria-label="memory"><!--[--><!--]--> memory <!--[--><!--]--></a><!----></li><li><a href="/doc/monitor.html" class="sidebar-item" aria-label="monitor"><!--[--><!--]--> monitor <!--[--><!--]--></a><!----></li><li><a href="/doc/ognl.html" class="sidebar-item" aria-label="ognl"><!--[--><!--]--> ognl <!--[--><!--]--></a><!----></li><li><a href="/doc/options.html" class="sidebar-item" aria-label="options"><!--[--><!--]--> options <!--[--><!--]--></a><!----></li><li><a href="/doc/perfcounter.html" class="sidebar-item" aria-label="perfcounter"><!--[--><!--]--> perfcounter <!--[--><!--]--></a><!----></li><li><a href="/doc/profiler.html" class="sidebar-item" aria-label="profiler"><!--[--><!--]--> profiler <!--[--><!--]--></a><!----></li><li><a href="/doc/pwd.html" class="sidebar-item" aria-label="pwd"><!--[--><!--]--> pwd <!--[--><!--]--></a><!----></li><li><a href="/doc/quit.html" class="sidebar-item" aria-label="quit"><!--[--><!--]--> quit <!--[--><!--]--></a><!----></li><li><a href="/doc/redefine.html" class="sidebar-item" aria-label="redefine"><!--[--><!--]--> redefine <!--[--><!--]--></a><!----></li><li><a href="/doc/reset.html" class="sidebar-item" aria-label="reset"><!--[--><!--]--> reset <!--[--><!--]--></a><!----></li><li><a href="/doc/retransform.html" class="sidebar-item" aria-label="retransform"><!--[--><!--]--> retransform <!--[--><!--]--></a><!----></li><li><a href="/doc/sc.html" class="sidebar-item" aria-label="sc"><!--[--><!--]--> sc <!--[--><!--]--></a><!----></li><li><a href="/doc/session.html" class="sidebar-item" aria-label="session"><!--[--><!--]--> session <!--[--><!--]--></a><!----></li><li><a href="/doc/sm.html" class="sidebar-item" aria-label="sm"><!--[--><!--]--> sm <!--[--><!--]--></a><!----></li><li><a href="/doc/stack.html" class="sidebar-item" aria-label="stack"><!--[--><!--]--> stack <!--[--><!--]--></a><!----></li><li><a href="/doc/stop.html" class="sidebar-item" aria-label="stop"><!--[--><!--]--> stop <!--[--><!--]--></a><!----></li><li><a href="/doc/sysenv.html" class="sidebar-item" aria-label="sysenv"><!--[--><!--]--> sysenv <!--[--><!--]--></a><!----></li><li><a href="/doc/sysprop.html" class="sidebar-item" aria-label="sysprop"><!--[--><!--]--> sysprop <!--[--><!--]--></a><!----></li><li><a href="/doc/tee.html" class="sidebar-item" aria-label="tee"><!--[--><!--]--> tee <!--[--><!--]--></a><!----></li><li><a href="/doc/thread.html" class="sidebar-item" aria-label="thread"><!--[--><!--]--> thread <!--[--><!--]--></a><!----></li><li><a href="/doc/trace.html" class="sidebar-item" aria-label="trace"><!--[--><!--]--> trace <!--[--><!--]--></a><!----></li><li><a href="/doc/tt.html" class="sidebar-item" aria-label="tt"><!--[--><!--]--> tt <!--[--><!--]--></a><!----></li><li><a href="/doc/version.html" class="sidebar-item" aria-label="version"><!--[--><!--]--> version <!--[--><!--]--></a><!----></li><li><a href="/doc/vmoption.html" class="sidebar-item" aria-label="vmoption"><!--[--><!--]--> vmoption <!--[--><!--]--></a><!----></li><li><a href="/doc/vmtool.html" class="sidebar-item" aria-label="vmtool"><!--[--><!--]--> vmtool <!--[--><!--]--></a><!----></li><li><a aria-current="page" href="/doc/watch.html" class="router-link-active router-link-exact-active router-link-active sidebar-item active" aria-label="watch"><!--[--><!--]--> watch <!--[--><!--]--></a><!----></li><!--]--></ul></li><li><a href="/doc/advanced-use.md" class="sidebar-item collapsible" aria-label="其他特性"><!--[--><!--]--> 其他特性 <!--[--><!--]--></a><ul style="display:none;" class="sidebar-item-children"><!--[--><li><a href="/doc/async.html" class="sidebar-item" aria-label="Arthas 后台异步任务"><!--[--><!--]--> Arthas 后台异步任务 <!--[--><!--]--></a><!----></li><li><a href="/doc/save-log.html" class="sidebar-item" aria-label="执行结果存日志"><!--[--><!--]--> 执行结果存日志 <!--[--><!--]--></a><!----></li><li><a href="/doc/docker.html" class="sidebar-item" aria-label="Docker"><!--[--><!--]--> Docker <!--[--><!--]--></a><!----></li><li><a href="/doc/web-console.html" class="sidebar-item" aria-label="Web Console"><!--[--><!--]--> Web Console <!--[--><!--]--></a><!----></li><li><a href="/doc/tunnel.html" class="sidebar-item" aria-label="Arthas Tunnel"><!--[--><!--]--> Arthas Tunnel <!--[--><!--]--></a><!----></li><li><a href="/doc/idea-plugin.html" class="sidebar-item" aria-label="IDEA Plugin"><!--[--><!--]--> IDEA Plugin <!--[--><!--]--></a><!----></li><li><a href="/doc/arthas-properties.html" class="sidebar-item" aria-label="Arthas Properties"><!--[--><!--]--> Arthas Properties <!--[--><!--]--></a><!----></li><li><a href="/doc/agent.html" class="sidebar-item" aria-label="以 Java Agent 的方式启动"><!--[--><!--]--> 以 Java Agent 的方式启动 <!--[--><!--]--></a><!----></li><li><a href="/doc/spring-boot-starter.html" class="sidebar-item" aria-label="Arthas Spring Boot Starter"><!--[--><!--]--> Arthas Spring Boot Starter <!--[--><!--]--></a><!----></li><li><a href="/doc/http-api.html" class="sidebar-item" aria-label="Http API"><!--[--><!--]--> Http API <!--[--><!--]--></a><!----></li><li><a href="/doc/batch-support.html" class="sidebar-item" aria-label="批处理功能"><!--[--><!--]--> 批处理功能 <!--[--><!--]--></a><!----></li><!--]--></ul></li><li><a href="/doc/faq.html" class="sidebar-item" aria-label="FAQ"><!--[--><!--]--> FAQ <!--[--><!--]--></a><!----></li><li><p tabindex="0" class="sidebar-item collapsible">专家答疑 <span class="right arrow"></span></p><ul style="display:none;" class="sidebar-item-children"><!--[--><li><a href="/doc/expert/intro.html" class="sidebar-item" aria-label="无疑 专家智能答疑 介绍"><!--[--><!--]--> 无疑 专家智能答疑 介绍 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11466.html" class="sidebar-item" aria-label="arthas 有没有在线教程？"><!--[--><!--]--> arthas 有没有在线教程？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12454.html" class="sidebar-item" aria-label="arthas 怎么查看内存情况？"><!--[--><!--]--> arthas 怎么查看内存情况？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13507.html" class="sidebar-item" aria-label="arthas查看内存占用大的地方"><!--[--><!--]--> arthas查看内存占用大的地方 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14832.html" class="sidebar-item" aria-label="arthas启动时内存溢出"><!--[--><!--]--> arthas启动时内存溢出 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15730.html" class="sidebar-item" aria-label="arthas 观察方法中的某个变量的值"><!--[--><!--]--> arthas 观察方法中的某个变量的值 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11440.html" class="sidebar-item" aria-label="arthas 怎么使用？"><!--[--><!--]--> arthas 怎么使用？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11467.html" class="sidebar-item" aria-label="arthas 在线教程在哪？"><!--[--><!--]--> arthas 在线教程在哪？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12455.html" class="sidebar-item" aria-label="arthas 排查内存泄露的具体方法"><!--[--><!--]--> arthas 排查内存泄露的具体方法 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13508.html" class="sidebar-item" aria-label="arthas 如何查看内存使用情况"><!--[--><!--]--> arthas 如何查看内存使用情况 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14833.html" class="sidebar-item" aria-label="Start arthas failed, exception stack trace:com.sun.tools.attach"><!--[--><!--]--> Start arthas failed, exception stack trace:com.sun.tools.attach <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15731.html" class="sidebar-item" aria-label="arthas 过滤方法的阐述"><!--[--><!--]--> arthas 过滤方法的阐述 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11442.html" class="sidebar-item" aria-label="arthas 介绍一下"><!--[--><!--]--> arthas 介绍一下 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11468.html" class="sidebar-item" aria-label="arthas 怎么使用？"><!--[--><!--]--> arthas 怎么使用？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12706.html" class="sidebar-item" aria-label="arthas 火焰图 怎么看？"><!--[--><!--]--> arthas 火焰图 怎么看？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13509.html" class="sidebar-item" aria-label="通过arthas怎样排查项目中，哪个对象泄露了，或者占用内存太大"><!--[--><!--]--> 通过arthas怎样排查项目中，哪个对象泄露了，或者占用内存太大 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14834.html" class="sidebar-item" aria-label="使用arthas 跟踪进程服务后，进程所占用的文件描述符陡增，且文件描述符不下降"><!--[--><!--]--> 使用arthas 跟踪进程服务后，进程所占用的文件描述符陡增，且文件描述符不下降 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15735.html" class="sidebar-item" aria-label="arthas报错connect to telnet server error: 127.0.0.1 9999"><!--[--><!--]--> arthas报错connect to telnet server error: 127.0.0.1 9999 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11443.html" class="sidebar-item" aria-label="arthas 下载和安装"><!--[--><!--]--> arthas 下载和安装 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11469.html" class="sidebar-item" aria-label="linux的arthas使用教程"><!--[--><!--]--> linux的arthas使用教程 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12715.html" class="sidebar-item" aria-label="java 如何用arthas 查看 内存 情况？"><!--[--><!--]--> java 如何用arthas 查看 内存 情况？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13510.html" class="sidebar-item" aria-label="查看实时jvm内存大小"><!--[--><!--]--> 查看实时jvm内存大小 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14840.html" class="sidebar-item" aria-label="Unsupported class file major version 61 using arthas 3.6.3"><!--[--><!--]--> Unsupported class file major version 61 using arthas 3.6.3 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15736.html" class="sidebar-item" aria-label="arthas 中jad参数"><!--[--><!--]--> arthas 中jad参数 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11444.html" class="sidebar-item" aria-label="arthas 命令解释"><!--[--><!--]--> arthas 命令解释 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11784.html" class="sidebar-item" aria-label="arthas使用的各类方式有哪些？"><!--[--><!--]--> arthas使用的各类方式有哪些？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12716.html" class="sidebar-item" aria-label="arthas 怎么查看堆内存太高"><!--[--><!--]--> arthas 怎么查看堆内存太高 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13511.html" class="sidebar-item" aria-label="arthas方法运行后查看成员变量"><!--[--><!--]--> arthas方法运行后查看成员变量 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14843.html" class="sidebar-item" aria-label="arthas 支持jdk 20么？"><!--[--><!--]--> arthas 支持jdk 20么？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15737.html" class="sidebar-item" aria-label="进程停了 arthas也会同步停止么？"><!--[--><!--]--> 进程停了 arthas也会同步停止么？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11450.html" class="sidebar-item" aria-label="arthas 分析thread线程卡住"><!--[--><!--]--> arthas 分析thread线程卡住 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11795.html" class="sidebar-item" aria-label="使用arthas查看成员变量值具体怎么做？"><!--[--><!--]--> 使用arthas查看成员变量值具体怎么做？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12740.html" class="sidebar-item" aria-label="arthas怎么分析cpu很高"><!--[--><!--]--> arthas怎么分析cpu很高 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13512.html" class="sidebar-item" aria-label="如何查看java内存增长哪些对象"><!--[--><!--]--> 如何查看java内存增长哪些对象 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15167.html" class="sidebar-item" aria-label="介绍一下arthas"><!--[--><!--]--> 介绍一下arthas <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15738.html" class="sidebar-item" aria-label="arthas如何查看hashmap的值"><!--[--><!--]--> arthas如何查看hashmap的值 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11451.html" class="sidebar-item" aria-label="arthas 怎么排查cpu占用过高？"><!--[--><!--]--> arthas 怎么排查cpu占用过高？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11809.html" class="sidebar-item" aria-label="linux下的arthas 具体怎么用？（使用教程）"><!--[--><!--]--> linux下的arthas 具体怎么用？（使用教程） <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12741.html" class="sidebar-item" aria-label="如何使用arthas查看系统哪个地方内存占用过大"><!--[--><!--]--> 如何使用arthas查看系统哪个地方内存占用过大 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13513.html" class="sidebar-item" aria-label="arthas 监听成员变量值的方法是什么？"><!--[--><!--]--> arthas 监听成员变量值的方法是什么？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15543.html" class="sidebar-item" aria-label="arthas中tt命令如何查看方法入参的具体命令"><!--[--><!--]--> arthas中tt命令如何查看方法入参的具体命令 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15739.html" class="sidebar-item" aria-label="arthas可以监听私有方法吗"><!--[--><!--]--> arthas可以监听私有方法吗 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11452.html" class="sidebar-item" aria-label="arthas 查看方法耗时"><!--[--><!--]--> arthas 查看方法耗时 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11810.html" class="sidebar-item" aria-label="arthas查看方法耗时"><!--[--><!--]--> arthas查看方法耗时 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13448.html" class="sidebar-item" aria-label="如何使用arthas分析慢查询"><!--[--><!--]--> 如何使用arthas分析慢查询 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13522.html" class="sidebar-item" aria-label="Connect to telnet server error: 127.0.0.1 3658"><!--[--><!--]--> Connect to telnet server error: 127.0.0.1 3658 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15726.html" class="sidebar-item" aria-label="arthas 如何查询static变量"><!--[--><!--]--> arthas 如何查询static变量 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15740.html" class="sidebar-item" aria-label="arthas 分析内存升高的方法"><!--[--><!--]--> arthas 分析内存升高的方法 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11453.html" class="sidebar-item" aria-label="arthas 怎样查看方法耗时"><!--[--><!--]--> arthas 怎样查看方法耗时 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11814.html" class="sidebar-item" aria-label="arthas 怎么排查内存泄漏"><!--[--><!--]--> arthas 怎么排查内存泄漏 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13504.html" class="sidebar-item" aria-label="如何查看实时jvm内存大小占用"><!--[--><!--]--> 如何查看实时jvm内存大小占用 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14763.html" class="sidebar-item" aria-label="利用Arthas排查NoSuchMethodError"><!--[--><!--]--> 利用Arthas排查NoSuchMethodError <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15728.html" class="sidebar-item" aria-label="arthas 获取成员变量"><!--[--><!--]--> arthas 获取成员变量 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history11454.html" class="sidebar-item" aria-label="arthas 常用命令介绍"><!--[--><!--]--> arthas 常用命令介绍 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history12453.html" class="sidebar-item" aria-label="arthas 怎么查看内存情况？"><!--[--><!--]--> arthas 怎么查看内存情况？ <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history13506.html" class="sidebar-item" aria-label="如何查看java内存增长哪些对象"><!--[--><!--]--> 如何查看java内存增长哪些对象 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history14831.html" class="sidebar-item" aria-label="Dashboard 命令cpuUsage长期在90%左右"><!--[--><!--]--> Dashboard 命令cpuUsage长期在90%左右 <!--[--><!--]--></a><!----></li><li><a href="/doc/expert/user-question-history15729.html" class="sidebar-item" aria-label="arthas 怎么查看变量内容"><!--[--><!--]--> arthas 怎么查看变量内容 <!--[--><!--]--></a><!----></li><!--]--></ul></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/issues?q=label%3Auser-case" rel="noopener noreferrer" target="_blank" aria-label="用户案例"><!--[--><!--]--><span>用户案例</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas" rel="noopener noreferrer" target="_blank" aria-label="Star me at github"><!--[--><!--]--><span>Star me at github</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md" rel="noopener noreferrer" target="_blank" aria-label="编译调试/参与贡献"><!--[--><!--]--><span>编译调试/参与贡献</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/releases" rel="noopener noreferrer" target="_blank" aria-label="Release Notes"><!--[--><!--]--><span>Release Notes</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a href="/doc/contact-us.md" class="sidebar-item" aria-label="QQ 群/钉钉群"><!--[--><!--]--> QQ 群/钉钉群 <!--[--><!--]--></a><!----></li><!--]--></ul></li><!--]--></ul><!--[--><!--]--></aside><!--]--><!--[--><main class="page" data-v-fdd717e0><!--[--><!--]--><div class="right-menu-padding theme-default-content" data-v-fdd717e0><!--[--><!--]--><div class="right-menu-wrapper" data-v-fdd717e0 data-v-64666cd5><div class="right-menu-margin" data-v-64666cd5><div class="right-menu-title" data-v-64666cd5>目录</div><div class="right-menu-content" data-v-64666cd5><!--[--><!--]--></div></div></div><div data-v-fdd717e0><h1 id="watch" tabindex="-1"><a class="header-anchor" href="#watch" aria-hidden="true">#</a> watch</h1><p><a href="https://arthas.aliyun.com/doc/arthas-tutorials.html?language=cn&id=command-watch" target="_blank" rel="noopener noreferrer"><code>watch</code>在线教程<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span></a></p><div class="custom-container tip"><p class="custom-container-title">提示</p><p>函数执行数据观测</p></div><p>让你能方便的观察到指定函数的调用情况。能观察到的范围为：<code>返回值</code>、<code>抛出异常</code>、<code>入参</code>，通过编写 OGNL 表达式进行对应变量的查看。</p><h2 id="参数说明" tabindex="-1"><a class="header-anchor" href="#参数说明" aria-hidden="true">#</a> 参数说明</h2><p>watch 的参数比较多，主要是因为它能在 4 个不同的场景观察对象</p><table><thead><tr><th style="text-align:right;">参数名称</th><th style="text-align:left;">参数说明</th></tr></thead><tbody><tr><td style="text-align:right;"><em>class-pattern</em></td><td style="text-align:left;">类名表达式匹配</td></tr><tr><td style="text-align:right;"><em>method-pattern</em></td><td style="text-align:left;">函数名表达式匹配</td></tr><tr><td style="text-align:right;"><em>express</em></td><td style="text-align:left;">观察表达式，默认值：<code>{params, target, returnObj}</code></td></tr><tr><td style="text-align:right;"><em>condition-express</em></td><td style="text-align:left;">条件表达式</td></tr><tr><td style="text-align:right;">[b]</td><td style="text-align:left;">在<strong>函数调用之前</strong>观察</td></tr><tr><td style="text-align:right;">[e]</td><td style="text-align:left;">在<strong>函数异常之后</strong>观察</td></tr><tr><td style="text-align:right;">[s]</td><td style="text-align:left;">在<strong>函数返回之后</strong>观察</td></tr><tr><td style="text-align:right;">[f]</td><td style="text-align:left;">在<strong>函数结束之后</strong>(正常返回和异常返回)观察</td></tr><tr><td style="text-align:right;">[E]</td><td style="text-align:left;">开启正则表达式匹配，默认为通配符匹配</td></tr><tr><td style="text-align:right;">[x:]</td><td style="text-align:left;">指定输出结果的属性遍历深度，默认为 1，最大值是 4</td></tr><tr><td style="text-align:right;"><code>[m <arg>]</code></td><td style="text-align:left;">指定 Class 最大匹配数量，默认值为 50。长格式为<code>[maxMatch <arg>]</code>。</td></tr></tbody></table><p>这里重点要说明的是观察表达式，观察表达式的构成主要由 ognl 表达式组成，所以你可以这样写<code>"{params,returnObj}"</code>，只要是一个合法的 ognl 表达式，都能被正常支持。</p><p>观察的维度也比较多，主要体现在参数 <code>advice</code> 的数据结构上。<code>Advice</code> 参数最主要是封装了通知节点的所有信息。请参考<a href="/doc/advice-class.html" class="">表达式核心变量</a>中关于该节点的描述。</p><ul><li>特殊用法请参考：<a href="https://github.com/alibaba/arthas/issues/71" target="_blank" rel="noopener noreferrer">https://github.com/alibaba/arthas/issues/71<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span></a></li><li>OGNL 表达式官网：<a href="https://commons.apache.org/dormant/commons-ognl/language-guide.html" target="_blank" rel="noopener noreferrer">https://commons.apache.org/dormant/commons-ognl/language-guide.html<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span></a></li></ul><p><strong>特别说明</strong>：</p><ul><li>watch 命令定义了 4 个观察事件点，即 <code>-b</code> 函数调用前，<code>-e</code> 函数异常后，<code>-s</code> 函数返回后，<code>-f</code> 函数结束后</li><li>4 个观察事件点 <code>-b</code>、<code>-e</code>、<code>-s</code> 默认关闭，<code>-f</code> 默认打开，当指定观察点被打开后，在相应事件点会对观察表达式进行求值并输出</li><li>这里要注意<code>函数入参</code>和<code>函数出参</code>的区别，有可能在中间被修改导致前后不一致，除了 <code>-b</code> 事件点 <code>params</code> 代表函数入参外，其余事件都代表函数出参</li><li>当使用 <code>-b</code> 时，由于观察事件点是在函数调用前，此时返回值或异常均不存在</li><li>在 watch 命令的结果里，会打印出<code>location</code>信息。<code>location</code>有三种可能值：<code>AtEnter</code>，<code>AtExit</code>，<code>AtExceptionExit</code>。对应函数入口，函数正常 return，函数抛出异常。</li></ul><h2 id="使用参考" tabindex="-1"><a class="header-anchor" href="#使用参考" aria-hidden="true">#</a> 使用参考</h2><h3 id="启动-demo" tabindex="-1"><a class="header-anchor" href="#启动-demo" aria-hidden="true">#</a> 启动 Demo</h3><p>启动<a href="/doc/quick-start.html" class="">快速入门</a>里的<code>math-game</code>。</p><h3 id="观察函数调用返回时的参数、this-对象和返回值" tabindex="-1"><a class="header-anchor" href="#观察函数调用返回时的参数、this-对象和返回值" aria-hidden="true">#</a> 观察函数调用返回时的参数、this 对象和返回值</h3><div class="custom-container tip"><p class="custom-container-title">提示</p><p>观察表达式，默认值是<code>{params, target, returnObj}</code></p></div><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token parameter variable">-x</span> <span class="token number">2</span>
|
|
|
Press Q or Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class count: <span class="token number">1</span> , method count: <span class="token number">1</span><span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">32</span> ms, listenerId: <span class="token number">5</span>
|
|
|
<span class="token assign-left variable">method</span><span class="token operator">=</span>demo.MathGame.primeFactors <span class="token assign-left variable">location</span><span class="token operator">=</span>AtExceptionExit
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2021</span>-08-31 <span class="token number">15</span>:22:57<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.220625ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span>-179173<span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@MathGame<span class="token punctuation">[</span>
|
|
|
<span class="token assign-left variable">random</span><span class="token operator">=</span>@Random<span class="token punctuation">[</span>java.util.Random@31cefde0<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">illegalArgumentCount</span><span class="token operator">=</span>@Integer<span class="token punctuation">[</span><span class="token number">44</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
null,
|
|
|
<span class="token punctuation">]</span>
|
|
|
<span class="token assign-left variable">method</span><span class="token operator">=</span>demo.MathGame.primeFactors <span class="token assign-left variable">location</span><span class="token operator">=</span>AtExit
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2021</span>-08-31 <span class="token number">15</span>:22:58<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">1</span>.020982ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@MathGame<span class="token punctuation">[</span>
|
|
|
<span class="token assign-left variable">random</span><span class="token operator">=</span>@Random<span class="token punctuation">[</span>java.util.Random@31cefde0<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">illegalArgumentCount</span><span class="token operator">=</span>@Integer<span class="token punctuation">[</span><span class="token number">44</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@ArrayList<span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">26947</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>上面的结果里，说明函数被执行了两次，第一次结果是<code>location=AtExceptionExit</code>，说明函数抛出异常了，因此<code>returnObj</code>是 null</li><li>在第二次结果里是<code>location=AtExit</code>，说明函数正常返回，因此可以看到<code>returnObj</code>结果是一个 ArrayList</li></ul><h3 id="指定-class-最大匹配数量" tabindex="-1"><a class="header-anchor" href="#指定-class-最大匹配数量" aria-hidden="true">#</a> 指定 Class 最大匹配数量</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token parameter variable">-m</span> <span class="token number">1</span>
|
|
|
Press Q or Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class count: <span class="token number">1</span> , method count: <span class="token number">1</span><span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">302</span> ms, listenerId: <span class="token number">3</span>
|
|
|
<span class="token assign-left variable">method</span><span class="token operator">=</span>demo.MathGame.primeFactors <span class="token assign-left variable">location</span><span class="token operator">=</span>AtExceptionExit
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2022</span>-12-25 <span class="token number">19</span>:58:41<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.222419ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>isEmpty<span class="token operator">=</span>false<span class="token punctuation">;</span><span class="token assign-left variable">size</span><span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">]</span>,
|
|
|
@MathGame<span class="token punctuation">[</span>demo.MathGame@3bf400<span class="token punctuation">]</span>,
|
|
|
null,
|
|
|
<span class="token punctuation">]</span>
|
|
|
<span class="token assign-left variable">method</span><span class="token operator">=</span>demo.MathGame.primeFactors <span class="token assign-left variable">location</span><span class="token operator">=</span>AtExceptionExit
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2022</span>-12-25 <span class="token number">19</span>:58:51<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.046928ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>isEmpty<span class="token operator">=</span>false<span class="token punctuation">;</span><span class="token assign-left variable">size</span><span class="token operator">=</span><span class="token number">1</span><span class="token punctuation">]</span>,
|
|
|
@MathGame<span class="token punctuation">[</span>demo.MathGame@3bf400<span class="token punctuation">]</span>,
|
|
|
null,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="观察函数调用入口的参数和返回值" tabindex="-1"><a class="header-anchor" href="#观察函数调用入口的参数和返回值" aria-hidden="true">#</a> 观察函数调用入口的参数和返回值</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token string">"{params,returnObj}"</span> <span class="token parameter variable">-x</span> <span class="token number">2</span> <span class="token parameter variable">-b</span>
|
|
|
Press Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class-cnt:1 , method-cnt:1<span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">50</span> ms.
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">19</span>:23:23<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.0353ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span>-1077465243<span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
null,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>对比前一个例子，返回值为空（事件点为函数执行前，因此获取不到返回值）</li></ul><h3 id="同时观察函数调用前和函数返回后" tabindex="-1"><a class="header-anchor" href="#同时观察函数调用前和函数返回后" aria-hidden="true">#</a> 同时观察函数调用前和函数返回后</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token string">"{params,target,returnObj}"</span> <span class="token parameter variable">-x</span> <span class="token number">2</span> <span class="token parameter variable">-b</span> <span class="token parameter variable">-s</span> <span class="token parameter variable">-n</span> <span class="token number">2</span>
|
|
|
Press Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class-cnt:1 , method-cnt:1<span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">46</span> ms.
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">19</span>:29:54<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.01696ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@MathGame<span class="token punctuation">[</span>
|
|
|
<span class="token assign-left variable">random</span><span class="token operator">=</span>@Random<span class="token punctuation">[</span>java.util.Random@522b408a<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">illegalArgumentCount</span><span class="token operator">=</span>@Integer<span class="token punctuation">[</span><span class="token number">13038</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
null,
|
|
|
<span class="token punctuation">]</span>
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">19</span>:29:54<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">4</span>.277392ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@MathGame<span class="token punctuation">[</span>
|
|
|
<span class="token assign-left variable">random</span><span class="token operator">=</span>@Random<span class="token punctuation">[</span>java.util.Random@522b408a<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">illegalArgumentCount</span><span class="token operator">=</span>@Integer<span class="token punctuation">[</span><span class="token number">13038</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@ArrayList<span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">5</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">5</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">73</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">241</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">439</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><p>参数里<code>-n 2</code>，表示只执行两次</p></li><li><p>这里输出结果中，第一次输出的是函数调用前的观察表达式的结果，第二次输出的是函数返回后的表达式的结果</p></li><li><p>结果的输出顺序和事件发生的先后顺序一致，和命令中 <code>-s -b</code> 的顺序无关</p></li></ul><h3 id="调整-x的值-观察具体的函数参数值" tabindex="-1"><a class="header-anchor" href="#调整-x的值-观察具体的函数参数值" aria-hidden="true">#</a> 调整<code>-x</code>的值，观察具体的函数参数值</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token string">"{params,target}"</span> <span class="token parameter variable">-x</span> <span class="token number">3</span>
|
|
|
Press Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class-cnt:1 , method-cnt:1<span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">58</span> ms.
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">19</span>:34:19<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.587833ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@MathGame<span class="token punctuation">[</span>
|
|
|
<span class="token assign-left variable">random</span><span class="token operator">=</span>@Random<span class="token punctuation">[</span>
|
|
|
<span class="token assign-left variable">serialVersionUID</span><span class="token operator">=</span>@Long<span class="token punctuation">[</span><span class="token number">3905348978240129619</span><span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">seed</span><span class="token operator">=</span>@AtomicLong<span class="token punctuation">[</span><span class="token number">3133719055989</span><span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">multiplier</span><span class="token operator">=</span>@Long<span class="token punctuation">[</span><span class="token number">25214903917</span><span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">addend</span><span class="token operator">=</span>@Long<span class="token punctuation">[</span><span class="token number">11</span><span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">mask</span><span class="token operator">=</span>@Long<span class="token punctuation">[</span><span class="token number">281474976710655</span><span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">DOUBLE_UNIT</span><span class="token operator">=</span>@Double<span class="token punctuation">[</span><span class="token number">1</span>.1102230246251565E-16<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">BadBound</span><span class="token operator">=</span>@String<span class="token punctuation">[</span>bound must be positive<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">BadRange</span><span class="token operator">=</span>@String<span class="token punctuation">[</span>bound must be greater than origin<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">BadSize</span><span class="token operator">=</span>@String<span class="token punctuation">[</span>size must be non-negative<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">seedUniquifier</span><span class="token operator">=</span>@AtomicLong<span class="token punctuation">[</span>-3282039941672302964<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">nextNextGaussian</span><span class="token operator">=</span>@Double<span class="token punctuation">[</span><span class="token number">0.0</span><span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">haveNextNextGaussian</span><span class="token operator">=</span>@Boolean<span class="token punctuation">[</span>false<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">serialPersistentFields</span><span class="token operator">=</span>@ObjectStreamField<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>isEmpty<span class="token operator">=</span>false<span class="token punctuation">;</span><span class="token assign-left variable">size</span><span class="token operator">=</span><span class="token number">3</span><span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">unsafe</span><span class="token operator">=</span>@Unsafe<span class="token punctuation">[</span>sun.misc.Unsafe@2eaa1027<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">seedOffset</span><span class="token operator">=</span>@Long<span class="token punctuation">[</span><span class="token number">24</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">illegalArgumentCount</span><span class="token operator">=</span>@Integer<span class="token punctuation">[</span><span class="token number">13159</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code>-x</code>表示遍历深度，可以调整来打印具体的参数和结果内容，默认值是 1。</li><li><code>-x</code>最大值是 4，防止展开结果占用太多内存。用户可以在<code>ognl</code>表达式里指定更具体的 field。</li></ul><h3 id="条件表达式的例子" tabindex="-1"><a class="header-anchor" href="#条件表达式的例子" aria-hidden="true">#</a> 条件表达式的例子</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token string">"{params[0],target}"</span> <span class="token string">"params[0]<0"</span>
|
|
|
Press Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class-cnt:1 , method-cnt:1<span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">68</span> ms.
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">19</span>:36:04<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.530255ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span>-18178089<span class="token punctuation">]</span>,
|
|
|
@MathGame<span class="token punctuation">[</span>demo.MathGame@41cf53f9<span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>只有满足条件的调用，才会有响应。</li></ul><h3 id="观察异常信息的例子" tabindex="-1"><a class="header-anchor" href="#观察异常信息的例子" aria-hidden="true">#</a> 观察异常信息的例子</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token string">"{params[0],throwExp}"</span> <span class="token parameter variable">-e</span> <span class="token parameter variable">-x</span> <span class="token number">2</span>
|
|
|
Press Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class-cnt:1 , method-cnt:1<span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">62</span> ms.
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">19</span>:38:00<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">1</span>.414993ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span>-1120397038<span class="token punctuation">]</span>,
|
|
|
java.lang.IllegalArgumentException: number is: -1120397038, need <span class="token operator">>=</span> <span class="token number">2</span>
|
|
|
at demo.MathGame.primeFactors<span class="token punctuation">(</span>MathGame.java:46<span class="token punctuation">)</span>
|
|
|
at demo.MathGame.run<span class="token punctuation">(</span>MathGame.java:24<span class="token punctuation">)</span>
|
|
|
at demo.MathGame.main<span class="token punctuation">(</span>MathGame.java:16<span class="token punctuation">)</span>
|
|
|
,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code>-e</code>表示抛出异常时才触发</li><li>express 中，表示异常信息的变量是<code>throwExp</code></li></ul><h3 id="按照耗时进行过滤" tabindex="-1"><a class="header-anchor" href="#按照耗时进行过滤" aria-hidden="true">#</a> 按照耗时进行过滤</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token string">'{params, returnObj}'</span> <span class="token string">'#cost>200'</span> <span class="token parameter variable">-x</span> <span class="token number">2</span>
|
|
|
Press Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class-cnt:1 , method-cnt:1<span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">66</span> ms.
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">19</span>:40:28<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">2112</span>.168897ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@ArrayList<span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">5</span><span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">428379493</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code>#cost>200</code>(单位是<code>ms</code>)表示只有当耗时大于 200ms 时才会输出，过滤掉执行时间小于 200ms 的调用</li></ul><h3 id="观察当前对象中的属性" tabindex="-1"><a class="header-anchor" href="#观察当前对象中的属性" aria-hidden="true">#</a> 观察当前对象中的属性</h3><p>如果想查看函数运行前后，当前对象中的属性，可以使用<code>target</code>关键字，代表当前对象</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token string">'target'</span>
|
|
|
Press Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class-cnt:1 , method-cnt:1<span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">52</span> ms.
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">19</span>:41:52<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.477882ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@MathGame<span class="token punctuation">[</span>
|
|
|
<span class="token assign-left variable">random</span><span class="token operator">=</span>@Random<span class="token punctuation">[</span>java.util.Random@522b408a<span class="token punctuation">]</span>,
|
|
|
<span class="token assign-left variable">illegalArgumentCount</span><span class="token operator">=</span>@Integer<span class="token punctuation">[</span><span class="token number">13355</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>然后使用<code>target.field_name</code>访问当前对象的某个属性</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">watch</span> demo.MathGame primeFactors <span class="token string">'target.illegalArgumentCount'</span>
|
|
|
Press Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class-cnt:1 , method-cnt:1<span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">67</span> ms.
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">20</span>:04:34<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">131</span>.303498ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@Integer<span class="token punctuation">[</span><span class="token number">8</span><span class="token punctuation">]</span>
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2018</span>-12-03 <span class="token number">20</span>:04:35<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.961441ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@Integer<span class="token punctuation">[</span><span class="token number">8</span><span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="获取类的静态字段、调用类的静态函数的例子" tabindex="-1"><a class="header-anchor" href="#获取类的静态字段、调用类的静态函数的例子" aria-hidden="true">#</a> 获取类的静态字段、调用类的静态函数的例子</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code><span class="token function">watch</span> demo.MathGame * <span class="token string">'{params,@demo.MathGame@random.nextInt(100)}'</span> <span class="token parameter variable">-v</span> <span class="token parameter variable">-n</span> <span class="token number">1</span> <span class="token parameter variable">-x</span> <span class="token number">2</span>
|
|
|
<span class="token punctuation">[</span>arthas@6527<span class="token punctuation">]</span>$ <span class="token function">watch</span> demo.MathGame * <span class="token string">'{params,@demo.MathGame@random.nextInt(100)}'</span> <span class="token parameter variable">-n</span> <span class="token number">1</span> <span class="token parameter variable">-x</span> <span class="token number">2</span>
|
|
|
Press Q or Ctrl+C to abort.
|
|
|
Affect<span class="token punctuation">(</span>class count: <span class="token number">1</span> , method count: <span class="token number">5</span><span class="token punctuation">)</span> cost <span class="token keyword">in</span> <span class="token number">34</span> ms, listenerId: <span class="token number">3</span>
|
|
|
<span class="token assign-left variable">ts</span><span class="token operator">=</span><span class="token number">2021</span>-01-05 <span class="token number">21</span>:35:20<span class="token punctuation">;</span> <span class="token punctuation">[</span>cost<span class="token operator">=</span><span class="token number">0</span>.173966ms<span class="token punctuation">]</span> <span class="token assign-left variable">result</span><span class="token operator">=</span>@ArrayList<span class="token punctuation">[</span>
|
|
|
@Object<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">[</span>
|
|
|
@Integer<span class="token punctuation">[</span>-138282<span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>,
|
|
|
@Integer<span class="token punctuation">[</span><span class="token number">89</span><span class="token punctuation">]</span>,
|
|
|
<span class="token punctuation">]</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>注意这里使用 <code>Thread.currentThread().getContextClassLoader()</code> 加载,使用精确<code>classloader</code> <a href="/doc/ognl.html" class="">ognl</a>更好。</li></ul><h3 id="排除掉指定的类" tabindex="-1"><a class="header-anchor" href="#排除掉指定的类" aria-hidden="true">#</a> 排除掉指定的类</h3><div class="custom-container tip"><p class="custom-container-title">提示</p><p>watch/trace/monitor/stack/tt 命令都支持 <code>--exclude-class-pattern</code> 参数</p></div><p>使用 <code>--exclude-class-pattern</code> 参数可以排除掉指定的类，比如：</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code><span class="token function">watch</span> javax.servlet.Filter * --exclude-class-pattern com.demo.TestFilter
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="不匹配子类" tabindex="-1"><a class="header-anchor" href="#不匹配子类" aria-hidden="true">#</a> 不匹配子类</h3><p>默认情况下 watch/trace/monitor/stack/tt 命令都会匹配子类。如果想不匹配，可以通过全局参数关掉。</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>options disable-sub-class <span class="token boolean">true</span>
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="使用-v-参数打印更多信息" tabindex="-1"><a class="header-anchor" href="#使用-v-参数打印更多信息" aria-hidden="true">#</a> 使用 -v 参数打印更多信息</h3><div class="custom-container tip"><p class="custom-container-title">提示</p><p>watch/trace/monitor/stack/tt 命令都支持 <code>-v</code> 参数</p></div><p>当命令执行之后，没有输出结果。有两种可能：</p><ol><li>匹配到的函数没有被执行</li><li>条件表达式结果是 false</li></ol><p>但用户区分不出是哪种情况。</p><p>使用 <code>-v</code>选项，则会打印<code>Condition express</code>的具体值和执行结果，方便确认。</p><p>比如：</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>$ watch -v -x 2 demo.MathGame print 'params' 'params[0] > 100000'
|
|
|
Press Q or Ctrl+C to abort.
|
|
|
Affect(class count: 1 , method count: 1) cost in 29 ms, listenerId: 11
|
|
|
Condition express: params[0] > 100000 , result: false
|
|
|
Condition express: params[0] > 100000 , result: false
|
|
|
Condition express: params[0] > 100000 , result: true
|
|
|
ts=2020-12-02 22:38:56; [cost=0.060843ms] result=@Object[][
|
|
|
@Integer[200033],
|
|
|
@ArrayList[
|
|
|
@Integer[200033],
|
|
|
],
|
|
|
]
|
|
|
Condition express: params[0] > 100000 , result: true
|
|
|
ts=2020-12-02 22:38:57; [cost=0.052877ms] result=@Object[][
|
|
|
@Integer[123047],
|
|
|
@ArrayList[
|
|
|
@Integer[29],
|
|
|
@Integer[4243],
|
|
|
],
|
|
|
]
|
|
|
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-fdd717e0><div class="meta-item edit-link"><a class="external-link meta-item-label" href="https://github.com/alibaba/arthas/edit/master/site/docs/doc/watch.md" rel="noopener noreferrer" target="_blank" aria-label="在 GitHub 上编辑此页"><!--[--><!--]--><span>在 GitHub 上编辑此页</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="meta-item last-updated"><span class="meta-item-label">Last Updated: </span><!----></div><div class="meta-item contributors"><span class="meta-item-label">贡献者: </span><span class="meta-item-info"><!--[--><!--[--><span class="contributor" title="email: hengyunabc@gmail.com">hengyunabc</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: i@fatpandac.com">Fatpandac</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: haoyixing@kuaishou.com">haoyixing</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: hengyunabc@users.noreply.github.com">hengyunabc</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: 35672972+pandaapo@users.noreply.github.com">pandaapo</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: hollowman186@vip.qq.com">Hollow Man</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: snipercy@users.noreply.github.com">vic</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: 983433479@qq.com">汪吉</span><!----><!--]--><!--]--></span></div></footer><nav class="page-nav right-menu-padding" data-v-fdd717e0><p class="inner"><span class="prev"><a href="/doc/vmtool.html" class="" aria-label="vmtool"><!--[--><!--]--> vmtool <!--[--><!--]--></a></span><!----></p></nav><!--[--><!--]--></main><!--]--></div><!----><!--]--></div>
|
|
|
<script type="module" src="/assets/app.5024572d.js" defer></script>
|
|
|
</body>
|
|
|
</html>
|