How to call Java method in Javascript

Question

I am creating web page using JSF 2.0.

What I want to do is, call one method setLastVisitedPage that I have in bean MyBean when everypage loads.

I can do this by simply writing

<h:body onLoad="#{MyBean.setLastVisitedPage()}"

however I would have to write in all pages and already there are 30-40 pages created. :(

In page as I have common heading, I have created one file called commonPage.xhtml. I was thinking to include that file here.

So I added below in commonPage.xhtml so that whenever any page is loaded, myScript.js gets called and I get alert as "i m here".

<h:outputScript name="js/myScript.js" target="head" />

and myScript.js has

onload = alert("i m here");

Whenever I open any new page, I am getting alert as "i m here".

Now my question is how can I add #{MyBean.setLastVisitedPage()} in javascript so that setLastVisitedPage() get called for every page?

Is there any alternative way? May be I am thinking in wrong way.

score 1 · Accepted Answer · answered Jul 23 '12 at 11:31

1

Since you are using JSF you better use the PreRenderViewEvent , like this

 <f:metadata>
     <f:event type="preRenderView" listener="#{MyBean.putLastVisitedPage}"/>
 </f:metadata>


public void putLastVisitedPage(ComponentSystemEvent event){
}

take a look here JSF 2 PreRenderViewEvent Example

answered Jul 23 '12 at 11:31

Daniel

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let me try... If it looks beautiful, I will let you know :) – Fahim Parkar Jul 23 '12 at 11:32
getting exception as `javax.faces.FacesException: Service Tracker has not been initialized` – Fahim Parkar Jul 23 '12 at 11:41
don't know that was for something else... after re-compiling all working smoothly.. Thanks for help again... – Fahim Parkar Jul 23 '12 at 12:09
Could you please look at this [question](http://stackoverflow.com/questions/11701143/calling-bean-method-on-image-onclick-event) – Fahim Parkar Jul 28 '12 at 13:52

How to call Java method in Javascript

1 Answers1