Java EL对象 `${pools}`

Question

我正在尝试调整 PSI Probe 中使用的代码(或者更一般地说，PSI Probe 的想法)将在我公司的 Web 应用程序内部使用。我可以获得我想要做的大部分内容，但我已经陷入了一小部分代码 - “状态”选项卡。一列数据是线程的处理时间，我真的很想拥有这些数据，但我不知道它来自哪里。这是相关片段:

<c:forEach items="${pools}" var="pool" varStatus="poolStatus">
  <div class="poolInfo">
    <h3>${pool.name}</h3>
    <div class="processorInfo">
      <span class="name">
        <spring:message code="probe.jsp.status.processor.maxTime"/>
      </span>
      &nbsp;${pool.maxTime}

我不知道pools对象来自哪里!有人有此类事情的经验吗？谢谢!

Answer 1

查看源代码(这是 Google 代码，Google 搜索速度非常快)

池正在填充 ListThreadPoolsController

List pools = containerListenerBean.getThreadPools();
        return new ModelAndView(getViewName())
                .addObject("pools", pools);

仔细看看ContainerListenerBean

显示 status.jsp 中列出的属性

<span class="name"><spring:message code="probe.jsp.status.currentThreadCount"/></span>&nbsp;${pool.currentThreadCount}
<span class="name"><spring:message code="probe.jsp.status.currentThreadsBusy"/></span>&nbsp;${pool.currentThreadsBusy}
<span class="name"><spring:message code="probe.jsp.status.maxThreads"/></span>&nbsp;${pool.maxThreads}
<span class="name"><spring:message code="probe.jsp.status.maxSpareThreads"/></span>&nbsp;${pool.maxSpareThreads}
<span class="name"><spring:message code="probe.jsp.status.minSpareThreads"/></span>&nbsp;${pool.minSpareThreads}

正在 getThreadPools() 方法中填充

ThreadPool threadPool = new ThreadPool();
threadPool.setName(executorName.getKeyProperty("name"));
threadPool.setMaxThreads(JmxTools.getIntAttr(server, executorName, "maxThreads"));
threadPool.setMaxSpareThreads(JmxTools.getIntAttr(server, executorName, "largestPoolSize"));
threadPool.setMinSpareThreads(JmxTools.getIntAttr(server, executorName, "minSpareThreads"));
threadPool.setCurrentThreadsBusy(JmxTools.getIntAttr(server, executorName, "activeCount"));
threadPool.setCurrentThreadCount(JmxTools.getIntAttr(server, executorName, "poolSize"));