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<div class="section" id="sc">
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<span id="sc"></span><h1>sc<a class="headerlink" href="#sc" title="永久链接至标题">¶</a></h1>
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<blockquote>
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<div>查看JVM已加载的类信息</div></blockquote>
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<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 class="docutils literal notranslate"><span class="pre">[d]</span></code>、<code class="docutils literal notranslate"><span class="pre">[E]</span></code>、<code class="docutils literal notranslate"><span class="pre">[f]</span></code> 和 <code class="docutils literal notranslate"><span class="pre">[x:]</span></code>。</p>
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<div class="section" id="">
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<span id="id1"></span><h2>参数说明<a class="headerlink" href="#" title="永久链接至标题">¶</a></h2>
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<div class="section" id="">
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<span id="id2"></span><h3>参数说明<a class="headerlink" href="#" title="永久链接至标题">¶</a></h3>
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<table border="1" class="docutils">
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<thead>
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<tr>
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<th align="right">参数名称</th>
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<th align="left">参数说明</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td align="right"><em>class-pattern</em></td>
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<td align="left">类名表达式匹配</td>
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</tr>
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<tr>
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<td align="right"><em>method-pattern</em></td>
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<td align="left">方法名表达式匹配</td>
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</tr>
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<tr>
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<td align="right">[d]</td>
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<td 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>
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</tr>
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<tr>
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<td align="right">[E]</td>
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<td align="left">开启正则表达式匹配，默认为通配符匹配</td>
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</tr>
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<tr>
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<td align="right">[f]</td>
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<td 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>
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</tr>
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<tr>
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<td align="right">[x:]</td>
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<td 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>
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</tr>
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</tbody>
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</table><blockquote>
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<div>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 class="docutils literal notranslate"><span class="pre">/</span></code>替换为<code class="docutils literal notranslate"><span class="pre">.</span></code>啦。</div></blockquote>
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<blockquote>
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<div>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 class="docutils literal notranslate"><span class="pre">options</span> <span class="pre">disable-sub-class</span> <span class="pre">true</span></code>开关</div></blockquote>
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</div>
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<div class="section" id="">
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<span id="id3"></span><h3>使用参考<a class="headerlink" href="#" title="永久链接至标题">¶</a></h3>
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<p>例如， 查看类的静态变量信息， 可以用<code class="docutils literal notranslate"><span class="pre">sc</span> <span class="pre">-df</span> <span class="pre">class-name</span></code></p>
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<div class="highlight-shell notranslate"><div class="highlight"><pre><span></span>$ sc -df org.apache.commons.lang.StringUtils
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class-info org.apache.commons.lang.StringUtils
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code-source /Users/zhuyong/middleware/citrus-sample/petstore/web/target/petstore/WEB-INF/lib/commons-lang-2.4.jar
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name org.apache.commons.lang.StringUtils
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isInterface <span class="nb">false</span>
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isAnnotation <span class="nb">false</span>
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isEnum <span class="nb">false</span>
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isAnonymousClass <span class="nb">false</span>
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isArray <span class="nb">false</span>
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isLocalClass <span class="nb">false</span>
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isMemberClass <span class="nb">false</span>
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isPrimitive <span class="nb">false</span>
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isSynthetic <span class="nb">false</span>
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simple-name StringUtils
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modifier public
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annotation
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interfaces
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super-class +-java.lang.Object
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class-loader +-com.taobao.tomcat.container.context.loader.AliWebappClassLoader
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+-org.apache.catalina.loader.StandardClassLoader@1d44eef3
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+-sun.misc.Launcher<span class="nv">$AppClassLoader</span>@57a462c9
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+-sun.misc.Launcher<span class="nv">$ExtClassLoader</span>@6951a712
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fields modifier final,public,static
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<span class="nb">type</span> java.lang.String
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name EMPTY
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value
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modifier final,public,static
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<span class="nb">type</span> int
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name INDEX_NOT_FOUND
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value -1
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modifier final,private,static
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<span class="nb">type</span> int
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name PAD_LIMIT
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value <span class="m">8192</span>
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</pre></div>
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