问题描述:

I have a faces-config.xml that contains a lot of navigation rules but I'm not able to get a redirect-param in my page.

I've searched a lot about this issue but I couldn't find any helping response.

detail.xhtml:

<p:commandLink action="#{bean.delete()}">

<f:setPropertyActionListener target="#{bean.deletionSuccess}" value="true" />

<p:confirm header="Confirmation" message="Are you sure?"

</p:commandLink>

faces-config.xml:

<navigation-rule>

<from-view-id>/myDetailPage.xhtml</from-view-id>

<navigation-case>

<from-outcome>deletionSuccess</from-outcome>

<to-view-id>/myOverviewPage.xhtml</to-view-id>

<redirect/>

</navigation-case>

</navigation-rule>

Java-Bean:

 private String deletionSuccess;

public String delete() {

// do something

return "deletionSuccess";

}

public void setDeletionSuccess(String deletionSuccess) { this.deletionSuccess = deletionSuccess; }

public String getDeletionSuccess() { return deletionSuccess; }

overview.xhtml:

<f:metadata>

<f:viewParam name="deletionSuccess" value="#{bean.deletionSuccess}"/>

<f:viewAction action="#{bean.init}"/>

</f:metadata>

...

<h:form id="mainform" class="form-horizontal overview" role="form" method="post">

<h:panelGroup styleClass="row" rendered="#{!empty housePlantBean.deletionSuccess}">

...

What am I doing wrong? Or how can I get the redirect-param in my XHTML-page?

Thanks a lot for your help!

网友答案:

This won't work in such way.

First of all you need to have defined <f:viewParam> on myOverviewPage.xhtml facelet, eg:

<f:metadata>
    <f:viewParam name="deletionSuccess" value="#{bean.deletionSuccess}"/>
</f:metadata>

I suppose you had it defined.


The easies way to pass params is use <h:button> or <h:link> on myDetailPage.xhtml facelet, eg:

<h:button outcome="deletionSuccess">
    <f:param name="deletionSuccess" value="#{true}"/>
</h:button>

but there is no invocation of public String delete() method.

So if you want to have redirection and invocation of this method you should use <h:commandButton> or <h:commandLink>, eg:

<h:commandButton value="submit" action="#{bean.delete}">
    <f:setPropertyActionListener target="#{bean.deletionSuccess}" value="#{true}" />
</h:commandButton>

--- UPDATE
Please keep correct file names in navigation-rule

<navigation-rule>
    <from-view-id>/detail.xhtml</from-view-id>
    <navigation-case>
        <from-outcome>deletionSuccess</from-outcome>
        <to-view-id>/overview.xhtml</to-view-id>
        <redirect include-view-params="true"/>
    </navigation-case>
</navigation-rule>

and please add to detail.xhtml:

<p:confirmDialog global="true" showEffect="fade" >
   <p:commandButton value="Yes" type="button" styleClass="ui-confirmdialog-yes" icon="ui-icon-check"/>
   <p:commandButton value="No" type="button" styleClass="ui-confirmdialog-no" icon="ui-icon-close"/>
</p:confirmDialog>

or remove <p:confirm header="Confirmation" message="Are you sure?"/> from <p:commandLink> tag

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