How to Invoke JSF Managed Beans on HTML DOM Events Using JavaScript?
Invoking JSF Managed Bean on HTML DOM Event using Native JavaScript
In web development, it becomes necessary to execute server-side actions based on specific events occurring on the client-side. This is achievable in JavaServer Faces (JSF) by employing various approaches. One such approach is to invoke a JSF managed bean action method using Ajax during an HTML DOM load event.
JSF 2.3's
In JSF 2.3 and above, the
<h:form> <h:commandScript name="commandName" action="#{bean.action}" render=":results" /> </h:form> <h:panelGroup>
This script can be invoked using plain JavaScript:
commandName();
Setting autorun="true" triggers it during DOM load.
PrimeFaces If PrimeFaces is utilized, consider employing its :
<h:form>
<p:remoteCommand name="commandName" action="#{bean.action}" update=":results" />
</h:form>
<h:panelGroup>
Copy after loginInvocation is similar to :
commandName();
Copy after loginCopy after loginPrimeFaces uses jQuery for AJAX calls, not JSF native jsf.ajax.request().
OmniFaces
For JSF versions older than 2.3, OmniFaces offers , which serves the same purpose as :
<o:form>
<o:commandScript name="commandName" action="#{bean.action}" render=":results" />
</o:form>
Copy after loginSimply replace h:commandScript with o:commandScript.
'Hidden Form' Trick
An alternative approach involves utilizing a hidden form with a :
<h:form>
Copy after loginInvocation:
document.getElementById("form:button").onclick();
Copy after loginCustom UIComponent
As a last resort, one can develop a custom UIComponent that extends UICommand and leverages jsf.ajax.request().
In summary, these approaches empower developers to invoke JSF managed beans on HTML DOM events using native JavaScript. The choice of method depends on factors such as JSF version, library usage, and project constraints.
The above is the detailed content of How to Invoke JSF Managed Beans on HTML DOM Events Using JavaScript?. For more information, please follow other related articles on the PHP Chinese website!
If PrimeFaces is utilized, consider employing its
<h:form> <p:remoteCommand name="commandName" action="#{bean.action}" update=":results" /> </h:form> <h:panelGroup>
Invocation is similar to
commandName();
PrimeFaces uses jQuery for AJAX calls, not JSF native jsf.ajax.request().
OmniFaces
For JSF versions older than 2.3, OmniFaces offers
<o:form> <o:commandScript name="commandName" action="#{bean.action}" render=":results" /> </o:form>
Simply replace h:commandScript with o:commandScript.
'Hidden Form' Trick
An alternative approach involves utilizing a hidden form with a
<h:form>
Invocation:
document.getElementById("form:button").onclick();
Custom UIComponent
As a last resort, one can develop a custom UIComponent that extends UICommand and leverages jsf.ajax.request().
In summary, these approaches empower developers to invoke JSF managed beans on HTML DOM events using native JavaScript. The choice of method depends on factors such as JSF version, library usage, and project constraints.
The above is the detailed content of How to Invoke JSF Managed Beans on HTML DOM Events Using JavaScript?. For more information, please follow other related articles on the PHP Chinese website!

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