Html 如何在jsp标记文件中使用if语句

我有一个.tag文件：

<%@tag description="Displays reduced information for analysis jobs" pageEncoding="ISO-8859-1"%>
<%@attribute name="job" required="true" type="redb.main.core.model.AnalysisJob"%>

<div class="analysis-job-reduced" data-job-id="${job.id}">
<p><span class="job-id">Job ${job.id}</span>: <span class="status">${job.status}</span></p>
<p class="prio">Prio: ${job.prio}</p>
<p class="executive">${job.executive.name}</p>
<p class="waiting-for">Waiting for ${job.textWaitingFor}</p>

作业${Job.id}:${Job.status}

prio:${job.prio}
${job.executive.name}
等待${job.textWaitingFor}

我想显示变量“job.prio”-变量，以防“job.status”等于“open”。 这意味着，如果“job.status”不是“open”，则在“Prio:”之后不会显示任何内容

我试过了，但没用

<div class="analysis-job-reduced" data-job-id="${job.id}">
<p><span class="job-id">Job ${job.id}</span>: <span class="status">${job.status}</span></p>
<%-- <p class="prio">Prio: ${job.prio}</p> --%>
<c:choose>
    <c:when test="${job.prio = 'open'}">
        <p class="prio">Prio: ${job.prio}</p>
    </c:when>
    <c:otherwise>
        <p class="prio">Prio: Job is not open anymore</p>
    </c:otherwise>
</c:choose>
<p class="executive">${job.executive.name}</p>
<p class="waiting-for">Waiting for ${job.textWaitingFor}</p>

作业${Job.id}:${Job.status}

prio:${job.prio}
优先级：作业不再打开

${job.executive.name}
等待${job.textWaitingFor}

---

非常感谢你的帮助

以下是有效的代码：

<div class="analysis-job-reduced" data-job-id="${job.id}">
<p><span class="job-id">Job ${job.id}</span>: <span class="status">${job.status}</span></p>
<%-- <p class="prio">Prio: ${job.prio}</p> --%>
<c:choose>
    <c:when test="${job.status == 'open'}">
        <p class="prio">Prio: ${job.prio}</p>
    </c:when>
    <c:otherwise>
        <p class="prio">Prio: Job is not open anymore</p>
    </c:otherwise>
</c:choose>
<p class="executive">${job.executive.name}</p>
<p class="waiting-for">Waiting for ${job.textWaitingFor}</p>

作业${Job.id}:${Job.status}

prio:${job.prio}
优先级：作业不再打开

${job.executive.name}
等待${job.textWaitingFor}

---

？@BirgitMartinelle谢谢！但是解释得太笼统了。。我真的不明白。我应该用“工作优先”还是“优先”？我如何应用上面的例子？