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aria-label="批处理功能"><!--[--><!--]--> 批处理功能 <!--[--><!--]--></a><!----></li><li><p tabindex="0" class="sidebar-item">ognl 表达式用法 <!----></p><ul style="display:none;" class="sidebar-item-children"><!--[--><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/issues/11" rel="noopener noreferrer" target="_blank" aria-label="活用ognl表达式"><!--[--><!--]--><span>活用ognl表达式</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/issues/71" rel="noopener noreferrer" target="_blank" aria-label="一些ognl特殊用法"><!--[--><!--]--><span>一些ognl特殊用法</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></li><!--]--></ul></li><li><a href="/doc/commands.html" class="sidebar-item" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></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/http-api.html" class="sidebar-item" aria-label="Http API"><!--[--><!--]--> Http API <!--[--><!--]--></a><!----></li><li><a href="/doc/docker.html" class="sidebar-item" aria-label="Docker"><!--[--><!--]--> Docker <!--[--><!--]--></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/idea-plugin.html" class="sidebar-item" aria-label="IDEA Plugin"><!--[--><!--]--> IDEA Plugin <!--[--><!--]--></a><!----></li><li><a href="/doc/faq.html" class="sidebar-item" aria-label="FAQ"><!--[--><!--]--> FAQ <!--[--><!--]--></a><!----></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="用户案列"><!--[--><!--]--><span>用户案列</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="Start me at github"><!--[--><!--]--><span>Start 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-e0e60120><!--[--><!--]--><div class="right-menu-padding theme-default-content" data-v-e0e60120><!--[--><!--]--><div class="right-menu-wrapper" data-v-e0e60120 data-v-7f642c19><div class="right-menu-margin" data-v-7f642c19><div class="right-menu-title" data-v-7f642c19>目录</div><div class="right-menu-content" data-v-7f642c19><!--[--><!--]--></div></div></div><div data-v-e0e60120><h1 id="monitor" tabindex="-1"><a class="header-anchor" href="#monitor" aria-hidden="true">#</a> monitor</h1><p><a href="https://arthas.aliyun.com/doc/arthas-tutorials.html?language=cn&id=command-monitor" target="_blank" rel="noopener noreferrer"><code>monitor</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>方法执行监控</p></div><p>对匹配 <code>class-pattern</code>／<code>method-pattern</code>／<code>condition-express</code>的类、方法的调用进行监控。</p><p><code>monitor</code> 命令是一个非实时返回命令.</p><p>实时返回命令是输入之后立即返回，而非实时返回的命令，则是不断的等待目标 Java 进程返回信息，直到用户输入 <code>Ctrl+C</code> 为止。</p><p>服务端是以任务的形式在后台跑任务，植入的代码随着任务的中止而不会被执行，所以任务关闭后，不会对原有性能产生太大影响，而且原则上，任何 Arthas 命令不会引起原有业务逻辑的改变。</p><h3 id="监控的维度说明" tabindex="-1"><a class="header-anchor" href="#监控的维度说明" aria-hidden="true">#</a> 监控的维度说明</h3><table><thead><tr><th style="text-align:right;">监控项</th><th style="text-align:left;">说明</th></tr></thead><tbody><tr><td style="text-align:right;">timestamp</td><td style="text-align:left;">时间戳</td></tr><tr><td style="text-align:right;">class</td><td style="text-align:left;">Java 类</td></tr><tr><td style="text-align:right;">method</td><td style="text-align:left;">方法（构造方法、普通方法）</td></tr><tr><td style="text-align:right;">total</td><td style="text-align:left;">调用次数</td></tr><tr><td style="text-align:right;">success</td><td style="text-align:left;">成功次数</td></tr><tr><td style="text-align:right;">fail</td><td style="text-align:left;">失败次数</td></tr><tr><td style="text-align:right;">rt</td><td style="text-align:left;">平均 RT</td></tr><tr><td style="text-align:right;">fail-rate</td><td style="text-align:left;">失败率</td></tr></tbody></table><h3 id="参数说明" tabindex="-1"><a class="header-anchor" href="#参数说明" aria-hidden="true">#</a> 参数说明</h3><p>方法拥有一个命名参数 <code>[c:]</code>，意思是统计周期（cycle of output），拥有一个整型的参数值</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;">方法名表达式匹配</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;">[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;"><code>[c:]</code></td><td style="text-align:left;">统计周期，默认值为 120 秒</td></tr><tr><td style="text-align:right;">[b]</td><td style="text-align:left;">在<strong>方法调用之前</strong>计算 condition-express</td></tr></tbody></table><h3 id="使用参考" tabindex="-1"><a class="header-anchor" href="#使用参考" aria-hidden="true">#</a> 使用参考</h3><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ monitor -c <span class="token number">5</span> demo.MathGame primeFactors
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