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data-v-2b64a081><!--[--><!--]--></div></div></div><div data-v-fdd717e0><h1 id="sc" tabindex="-1"><a class="header-anchor" href="#sc" aria-hidden="true">#</a> sc</h1><p><a href="https://arthas.aliyun.com/doc/arthas-tutorials?language=cn&id=command-sc" target="_blank" rel="noopener noreferrer"><code>sc</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>查看 JVM 已加载的类信息</p></div><p>“Search-Class” 的简写，这个命令能搜索出所有已经加载到 JVM 中的 Class 信息，这个命令支持的参数有 <code>[d]</code>、<code>[E]</code>、<code>[f]</code> 和 <code>[x:]</code>。</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><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;">[d]</td><td style="text-align:left;">输出当前类的详细信息，包括这个类所加载的原始文件来源、类的声明、加载的 ClassLoader 等详细信息。<br>如果一个类被多个 ClassLoader 所加载，则会出现多次</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;">[f]</td><td style="text-align:left;">输出当前类的成员变量信息（需要配合参数-d 一起使用）</td></tr><tr><td style="text-align:right;">[x:]</td><td style="text-align:left;">指定输出静态变量时属性的遍历深度，默认为 0，即直接使用 <code>toString</code> 输出</td></tr><tr><td style="text-align:right;"><code>[c:]</code></td><td style="text-align:left;">指定 class 的 ClassLoader 的 hashcode</td></tr><tr><td style="text-align:right;"><code>[classLoaderClass:]</code></td><td style="text-align:left;">指定执行表达式的 ClassLoader 的 class name</td></tr><tr><td style="text-align:right;"><code>[n:]</code></td><td style="text-align:left;">具有详细信息的匹配类的最大数量（默认为 100）</td></tr><tr><td style="text-align:right;"><code>[cs <arg>]</code></td><td style="text-align:left;">指定 class 的 ClassLoader#toString() 返回值。长格式<code>[classLoaderStr <arg>]</code></td></tr></tbody></table><div class="custom-container tip"><p class="custom-container-title">提示</p><p>class-pattern 支持全限定名，如 com.taobao.test.AAA，也支持 com/taobao/test/AAA 这样的格式，这样，我们从异常堆栈里面把类名拷贝过来的时候，不需要在手动把<code>/</code>替换为<code>.</code>啦。</p></div><div class="custom-container tip"><p class="custom-container-title">提示</p><p>sc 默认开启了子类匹配功能，也就是说所有当前类的子类也会被搜索出来，想要精确的匹配，请打开<code>options disable-sub-class true</code>开关</p></div><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><ul><li><p>模糊搜索</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ sc demo.*
|