“该链接被停用，因为它没有以JSF形式嵌入." [英] "This link is deactivated, because it is not embedded in a JSF form."

问题描述

当我使用以下命令链接时:

When I use the following command link:

<h:commandLink action="student" value="students" />

以及faces-config.xml中的以下导航规则:

And the following navigation rule in faces-config.xml:

<navigation-rule>
  <from-view-id>/home.xhtml</from-view-id>
  <navigation-case>
    <from-outcome>student</from-outcome>
    <to-view-id>/student.xhtml</to-view-id>
  </navigation-case>
</navigation-rule>

然后我得到以下开发阶段面临的消息:

Then I get the following development stage faces message:

此链接未激活，因为它未嵌入JSF表单中.

This link is deactivated, because it is not embedded in a JSF form.

这是怎么引起的，我该如何解决?

How is this caused and how can I solve it?

推荐答案

<h:commandLink>触发POST请求.您需要将其嵌入到<h:form>中.

The <h:commandLink> fires a POST request. You need to embed it in a <h:form>.

<h:form>
    <h:commandLink action="student" value="students" />
</h:form>

由于您已经在使用JSF 2.0，因此也可以只使用<h:link>来触发不需要表单的GET请求，因此对于书签性和SEO而言要好得多.另外，由于JSF 2.0使用隐式导航，因此您也可以摆脱整个<navigation-rule>.

Since you're already on JSF 2.0, you can also just use <h:link> instead which fires a GET request which doesn't require a form and is thus way much better for bookmarkability and SEO. Also you can get rid of the whole <navigation-rule> since JSF 2.0 utilizes implicit navigation.

<h:link value="students" outcome="student" />

它将隐式转到student.xhtml.

确保您正在阅读JSF 2.0教程，而不是针对JSF 1.x的教程.在JSF 2.0中，添加了许多新的标签和功能.

Ensure that you're reading JSF 2.0 tutorials, not the ones targeted on JSF 1.x. In JSF 2.0 a lot of new tags and features have been added.

• 何时应使用h:outputLink代替h:commandLink?
• 我们不需要stinkin的面孔配置

• When should I use h:outputLink instead of h:commandLink?
• We don't need stinkin' faces-config

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