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</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>arthas 命令解释 | arthas</title><meta name="description" content="Arthas 是一款Java诊断工具，它提供了丰富的命令集来帮助开发者在生产环境中定位和解决各种JVM相关的问题，无需重启应用。以下是部分核心命令的解释：### 安装 Arthas- **快速安装**：推荐使用 `arthas-boot.jar`。通过以下命令下载并启动： ```bash cur">
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<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>v4.0.1</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 .7
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<span class="token function">java</span> <span class="token parameter variable">-jar</span> arthas-boot.jar
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div></li><li><strong>一键安装</strong>（Linux/Unix/Mac）：通过脚本安装：<div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code><span class="token function">curl</span> <span class="token parameter variable">-L</span> https://arthas.aliyun.com/install.sh <span class="token operator">|</span> <span class="token function">sh</span>
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div></li><li><strong>全量/手动安装</strong>及其他方式详情请参照<a href="https://arthas.aliyun.com/doc/install.html" target="_blank" rel="noopener noreferrer">Arthas Install<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><h3 id="arthas-命令列表概览" tabindex="-1"><a class="header-anchor" href="#arthas-命令列表概览" aria-hidden="true">#</a> Arthas 命令列表概览</h3><h4 id="jvm-相关" tabindex="-1"><a class="header-anchor" href="#jvm-相关" aria-hidden="true">#</a> JVM 相关</h4><ul><li><strong>dashboard</strong>：查看系统实时数据面板。</li><li><strong>thread</strong>：检查JVM线程堆栈信息。</li><li><strong>heapdump</strong>：类似jmap，dump Java堆内存。</li><li><strong>sysprop</strong>：查看和修改JVM系统属性。</li></ul><h4 id="class-classloader-相关" tabindex="-1"><a class="header-anchor" href="#class-classloader-相关" aria-hidden="true">#</a> Class/ClassLoader 相关</h4><ul><li><strong>sc</strong>：列出已加载的类信息。</li><li><strong>jad</strong>：反编译类的源码。</li><li><strong>redefine</strong>/<strong>retransform</strong>：动态加载外部<code>.class</code>文件，修改类定义。</li></ul><h4 id="monitor-watch-trace-相关" tabindex="-1"><a class="header-anchor" href="#monitor-watch-trace-相关" aria-hidden="true">#</a> Monitor/Watch/Trace 相关</h4><ul><li><strong>watch</strong>：观测方法执行时的入参和返回值。</li><li><strong>trace</strong>：追踪方法内部调用路径及其耗时。</li><li>注意：这些命令通过字节码增强实现，使用时应谨慎，避免对线上服务造成影响。</li></ul><h4 id="profiler-性能分析" tabindex="-1"><a class="header-anchor" href="#profiler-性能分析" aria-hidden="true">#</a> Profiler/性能分析</h4><ul><li><strong>profiler</strong>：使用async-profiler生成火焰图进行性能分析。</li><li><strong>jfr</strong>：动态启用/停用Java Flight Recorder记录。</li></ul><h4 id="其他功能" tabindex="-1"><a class="header-anchor" href="#其他功能" aria-hidden="true">#</a> 其他功能</h4><ul><li><strong>grep</strong>、<strong>wc</strong>、<strong>plaintext</strong>：管道处理命令结果，如过滤、统计、去颜色等。</li><li><strong>auth</strong>：命令执行鉴权。</li><li><strong>options</strong>：查看或设置Arthas全局配置。</li><li><strong>base64</strong>、<strong>cat</strong>、<strong>echo</strong>等：提供类似Linux基础命令的功能。</li></ul><h3 id="使用说明" tabindex="-1"><a class="header-anchor" href="#使用说明" aria-hidden="true">#</a> 使用说明</h3><p>对于具体命令的详细用法和参数，可以通过在Arthas中输入<code>help <command></code>来获取帮助信息，例如<code>help watch</code>来了解如何使用<code>watch</code>命令。</p><p>以上内容基于提供的知识，如果您有特定命令的使用疑问或遇到使用过程中的问题，请提供更详细的信息以便获得更精准的帮助。</p><!----><h2 id="参考链接" tabindex="-1"><a class="header-anchor" href="#参考链接" aria-hidden="true">#</a> 参考链接 ：</h2><p><a href="/doc/install-detail.html" class="">Arthas Install</a></p><p><a href="/doc/commands.html" class="">命令列表</a></p><!----><h2 id="答疑服务说明" tabindex="-1"><a class="header-anchor" href="#答疑服务说明" aria-hidden="true">#</a> <!----></h2><p>本内容经由技术专家审
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