EL 表达式中的 OR 条件如何发挥作用？

发布于 2024-12-14 22:34:05 字数 573 浏览 2 评论 0原文

我想在此菜单中创建一个 OR 条件：

<li class="#{facesContext.viewRoot.viewId == ('/company/team.xhtml' or '/company/partnerships.xhtml' ) ? 'active' : '' }"><a class="item" href="company/company.xhtml">Company</a>
    <ul>
        <li><a href="company/team.xhtml">Team</a></li>
        <li><a href="company/partnerships.xhtml">Partnerships</a></li>
    </ul>
</li>

如果用户选择了 team.xthml 或partnerships.xhtml 页面，则将设置“active”值它位于

标记中。

原文

I would like to make an OR condition in this menu :

<li class="#{facesContext.viewRoot.viewId == ('/company/team.xhtml' or '/company/partnerships.xhtml' ) ? 'active' : '' }"><a class="item" href="company/company.xhtml">Company</a>
    <ul>
        <li><a href="company/team.xhtml">Team</a></li>
        <li><a href="company/partnerships.xhtml">Partnerships</a></li>
    </ul>
</li>

That if the team.xthml or partnerships.xhtml page are selected by the user the 'active' value would be set it in the <li> tag.

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动听の歌 2024-12-21 22:34:05

这是正确的语法：

<li class="#{facesContext.viewRoot.viewId == '/company/team.xhtml' or facesContext.viewRoot.viewId == '/company/partnerships.xhtml' ? 'active' : '' }">

要使其更短，您可以使用 #{view} 而不是 #{facesContext.viewRoot}：

<li class="#{view.viewId == '/company/team.xhtml' or view.viewId == '/company/partnerships.xhtml' ? 'active' : '' }">

要使其更短，您可以将 #{view.viewId} 别名为：

<c:set var="viewId" value="#{view.viewId}" scope="request" />
...
<li class="#{viewId == '/company/team.xhtml' or viewId == '/company/partnerships.xhtml' ? 'active' : '' }">

This is the proper syntax:

<li class="#{facesContext.viewRoot.viewId == '/company/team.xhtml' or facesContext.viewRoot.viewId == '/company/partnerships.xhtml' ? 'active' : '' }">

To make it a bit shorter, you could use #{view} instead of #{facesContext.viewRoot}:

<li class="#{view.viewId == '/company/team.xhtml' or view.viewId == '/company/partnerships.xhtml' ? 'active' : '' }">

To make it yet shorter, you could alias the #{view.viewId} with <c:set>:

<c:set var="viewId" value="#{view.viewId}" scope="request" />
...
<li class="#{viewId == '/company/team.xhtml' or viewId == '/company/partnerships.xhtml' ? 'active' : '' }">

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