jsf - 未在 JSF 页面上调用的 Bean 方法包含在</a></h1> <div class="ml12 aside-cta flex--item print:d-none sm:ml0 sm:mb12 sm:order-first sm:as-end"> <a href="https://stackoverflow.com/questions/ask" target="_blank" class="ws-nowrap s-btn s-btnprimary">问问题</a></div> </div> <div class="d-flex fw-wrap pb8 mb16 bb bc-black-075"> <div class="flex--item ws-nowrap mr16 mb8"> <span class="fc-light mr2"></span> </div> <div class="flex--item ws-nowrap mr16 mb8" title="2022-04-17 15:46:40Z"> <span class="fc-light mr2">问问题</span> <time itemprop="dateCreated" datetime="2015-11-16T15:21:06.937">2015-11-16T15:21:06.937</time> </div> <div class="flex--item ws-nowrap mb8" title="Viewed 6 times"> <span class="fc-light mr2"></span> 525 次 </div> </div> <div id="mainbar" role="main" aria-label="question and answers"> <div class="question" data-questionid="4" data-position-on-page="0" data-score="763" id="question"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container d-flex jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="4"> <button class="js-vote-up-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Up vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-peeufs8c"> <svg aria-hidden="true" class="svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 25h32L18 9 2 25Z"></path></svg> </button> <div id="--stacks-s-tooltip-peeufs8c" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">This question shows research effort; it is useful and clear<div class="s-popover--arrow"></div></div> <div class="js-vote-count flex--item d-flex fd-column ai-center fc-black-500 fs-title" itemprop="upvoteCount" data-value=""> 0 </div> <button class="js-vote-down-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Down vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-04106eqn"> <svg aria-hidden="true" class="svg-icon iconArrowDownLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 11h32L18 27 2 11Z"></path></svg> </button><div id="--stacks-s-tooltip-04106eqn" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">This question does not show any research effort; it is unclear or not useful<div class="s-popover--arrow"></div></div> <div id="--stacks-s-tooltip-tgvwendx" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">Bookmark this question.<div class="s-popover--arrow"></div></div> <a class="js-post-issue flex--item s-btn s-btnunset c-pointer py6 mx-auto" data-shortcut="T" data-ks-title="timeline" data-controller="s-tooltip" data-s-tooltip-placement="right" aria-label="Timeline" aria-describedby="--stacks-s-tooltip-abwmy15k"><svg aria-hidden="true" class="mln2 mr0 svg-icon iconHistory" width="19" height="18" viewBox="0 0 19 18"><path d="M3 9a8 8 0 1 1 3.73 6.77L8.2 14.3A6 6 0 1 0 5 9l3.01-.01-4 4-4-4h3L3 9Zm7-4h1.01L11 9.36l3.22 2.1-.6.93L10 10V5Z"></path></svg></a><div id="--stacks-s-tooltip-abwmy15k" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">Show activity on this post.<div class="s-popover--arrow"></div></div> </div> </div> <div class="postcell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"> <p>I have a <code><p:commandButton></code> which, oncomplete gives a dialog which contains an iframe. iframe contains another page which contains menu's. I wrote an actionListener on clicking commandbutton a method will execute and make menu's rendered false. Surprisingly the get method's for rendering variable is not calling. Here is my sample code.</p>

<pre><code><p:commandButton oncomplete="PF('Loc').show();"
 action="bean.rendermethod"
 update="createDialog">

 <p:dialog closeOnEscape="true"
 widgetVar="Loc"
 modal="true"
 dynamic="true"
 id="createDialog"
 minimizable="false"
 maximizable="true"
 height="100%"
 width="100%"
 style="background-color:rgb(232, 232, 232) !important;">

 <iframe frameborder="0" height="768" width="100%"
 src="loc.faces"
 name="someName" id="someId" scrolling="auto" />
 </p:dialog>
</p:commandButton>
</code></pre>

<p>loc.xhtml:</p>

<pre><code><p:menubar autoSubmenuDisplay="true"
 effectDuration="0"
 rendered="#{!(createAssociationsBean.splcCreate)}">

 ...

</p:menubar>
</code></pre>

<p>Java code:</p>

<pre><code>public void renderMethod() {
 setSplcCreate("true");
}

public String getSplcCreate() {
 return splcCreate;
}

public void setSplcCreate(String splcCreate) {
 this.splcCreate = splcCreate;
}
</code></pre>
 </div> <div class="mt24 mb12"> <div class="post-taglist d-flex gs4 gsy fd-column"> <div class="d-flex ps-relative fw-wrap"> <a href="/tags/jsf" class="post-tag js-gps-track" title="show questions tagged 'jsf'" rel="tag">jsf</a><a href="/tags/iframe" class="post-tag js-gps-track" title="show questions tagged 'iframe'" rel="tag">iframe</a><a href="/tags/el" class="post-tag js-gps-track" title="show questions tagged 'el'" rel="tag">el</a><a href="/tags/conditional-rendering" class="post-tag js-gps-track" title="show questions tagged 'conditional-rendering'" rel="tag">conditional-rendering</a> </div> </div> </div> </div> <span class="d-none" itemprop="commentCount">4</span> </div> </div> <div class="js-zone-container zone-container-responsive"> <div id="dfp-isb" class="everyonelovesstackoverflow everyonelovesinline-sidebar mx-auto" style="min-height: auto; height: auto; display: none;"></div> <div class="js-report-ad-button-container mx-auto" style="width: 300px"></div> </div> <div id="answers"> <a name="tab-top"></a> <div id="answers-header"> <div class="answers-subheader d-flex ai-center mb8"> <div class="flex--item fl1"> <h2 class="mb0" data-answercount=""> 2 回答 <span style="display:none;" itemprop="answerCount">2</span> </h2> </div> </div> </div> <a name="7"></a> <div id="answer-7" class="answer js-answer accepted-answer" data-answerid="7" data-parentid="4" data-score="506" data-position-on-page="1" data-highest-scored="1" data-question-has-accepted-highest-score="1" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container d-flex jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="7"> <button class="js-vote-up-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Up vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-dgvag2l3"> <svg aria-hidden="true" class="svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 25h32L18 9 2 25Z"></path></svg> </button><div id="--stacks-s-tooltip-dgvag2l3" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">This answer is useful<div class="s-popover--arrow"></div></div> <div class="js-vote-count flex--item d-flex fd-column ai-center fc-black-500 fs-title" itemprop="upvoteCount" data-value="3"> 3 </div> <button class="js-vote-down-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Down vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-gn8ppsfv"> <svg aria-hidden="true" class="svg-icon iconArrowDownLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 11h32L18 27 2 11Z"></path></svg> </button> </div> </div> <div class="answercell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"> <p>An<code><iframe></code>不包含与其父页面相同的 HTTP 请求中的指定页面。它将包含在一个全新的独立 HTTP 请求中。也就是说，它是由网络浏览器执行的，而不是网络服务器。实际上，框架页面将获得自己的全新请求范围 bean，它与父页面不同。</p> <p>此外，新的 HTTP 请求也不包含有关 JSF 视图的任何信息，因此它还将获得自己的视图范围 bean 实例（如果有）。只有当它们在同一个 HTTP 会话中运行时，它们才可能共享同一个会话范围的 bean 实例。但是使 bean 会话作用域会产生严重的后果。</p> <p>尽管如此，这种方法没有任何意义。这是一个错误的目的<code><iframe></code>。改为使用<code><ui:include></code>。如果您唯一关心的是滚动条等，只需在<code>overflow:scroll</code>固定大小的块元素（如<code><div></code>.</p> <hr> <p><strong></strong>与具体问题<strong>无关</strong><code><p:commandButton action></code>，由于缺少 EL 表达式大括号，您是不正确的，因此引入了一个主要的红鲱鱼。而且，<code>rendered</code>引用<code>String</code>值的属性<code>"true"</code>很讨厌，因为它使用了错误的数据类型来保存它的值。如果你想要一个布尔类型，只需使用<code>boolean</code>而不是<code>String</code>. 我可以想象这一切都是在黑暗中摆弄，然后不小心将代码片段复制粘贴到问题中而没有仔细测试为<a href="https://stackoverflow.com/help/mcve">MCVE</a>的结果。今后请不要那样做。另请参阅<a href="https://stackoverflow.com/tags/jsf/info">https://stackoverflow.com/tags/jsf/info</a>。</p> </div> <div class="mt24"> <div class="user-action-time" style="color:#999;text-align:right;">于 2015-11-16T15:29:13.243 回答</div> </div> </div> </div> </div><a name="7"></a> <div id="answer-7" class="answer js-answer accepted-answer" data-answerid="7" data-parentid="4" data-score="506" data-position-on-page="1" data-highest-scored="1" data-question-has-accepted-highest-score="1" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container d-flex jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="7"> <button class="js-vote-up-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Up vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-dgvag2l3"> <svg aria-hidden="true" class="svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 25h32L18 9 2 25Z"></path></svg> </button><div id="--stacks-s-tooltip-dgvag2l3" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">This answer is useful<div class="s-popover--arrow"></div></div> <div class="js-vote-count flex--item d-flex fd-column ai-center fc-black-500 fs-title" itemprop="upvoteCount" data-value="1"> 1 </div> <button class="js-vote-down-btn flex--item s-btn s-btn__unset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Down vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-gn8ppsfv"> <svg aria-hidden="true" class="svg-icon iconArrowDownLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 11h32L18 27 2 11Z"></path></svg> </button> </div> </div> <div class="answercell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"> <p>除了做@BalusC 的方法</p> <p>splcCreate 是一个字符串字段。</p> <p>el 表达式</p> <pre><code> rendered="#{!(createAssociationsBean.splcCreate)}" </code></pre> <p>使用 splcCreate 作为布尔表达式会更好</p> </div> <div class="mt24"> <div class="user-action-time" style="color:#999;text-align:right;">于 2015-11-16T15:33:46.380 回答</div> </div> </div> </div> </div></div> </div> <div id="sidebar" class="show-votes" role="complementary" aria-label="sidebar"> <div class="module sidebar-related"> <h4 id="h-related">Related</h4> <div class="related js-gps-related-questions" data-tracker="rq=1"> <div class="spacer"> <a href="/questions/19100900" title="Question score (upvotes - downvotes)"> <div class="answer-votes large">4</div> </a> <a href="/questions/19100900" class="question-hyperlink">c# - 如何将大量数据导出到excel</a> </div><div class="spacer"> <a href="/questions/19100902" title="Question score (upvotes - downvotes)"> <div class="answer-votes large">1</div> </a> <a href="/questions/19100902" class="question-hyperlink">c# - Mysql 更新日期查询错误</a> </div><div class="spacer"> <a 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