How to call a bean method through a javascript function

I dont discover any problems calling the bean method in this maner:
<%= helpdesk.data() %>
But, when I use a Button Onclick= to call the script function and which then is going call my bean method
an error on the page is reported!
I have include som code which gives you the idea of what Iam searching for. And is it possible to call
the bean method without doing from a new jsp page?
If you have any suggestions to why it doesnt work, please let me know.
I use Apache Tomcat 4.0
Best regards Micah.
<jsp:useBean id='helpdesk' scope='application'
class='helpdesk.testdb'/>
<html>
<head>
<script language="javascript">
function broadcast()
helpdesk.data();
</script>
</head>
<body>
<input type="button" value="Broadcast" onclick= broadcast()>
</body>
</html>

It's actually quite simple:
Beans run server-side
Javascript runs client-side
So you will never be able to run server-side-code thru the client...

Similar Messages

How to call a bean method through javascript?

Hi,
i want to call a bean method using the javascript.
thansk in advance.

hi
i want to call a backing bean method thought javscript on the button click.
i am inplementing addition of textbox at runtime.i wrote method and i am calling that on the button click.but the textbox is not created.
the code is bleow
public String doAction() {
     tryStuff1();
return "samplejsf";
public void tryStuff1()
System.out.println("Enter the trystuff method");
     FacesContext facesContext = FacesContext.getCurrentInstance();
UIViewRoot uIViewRoot = facesContext.getViewRoot();
Application application = facesContext.getApplication();
UIComponent formComp=uIViewRoot.findComponent("subbody:form1");
HtmlPanelGrid grid= new HtmlPanelGrid();
grid.setId("panelgrid2");
grid.setColumns(2);
grid.setBorder(2);
//UIComponent panelGridComp=formComp.findComponent("subbody:panelgrid1");
//UIComponent panelGroupComp=panelGridComp.findComponent("panelgroup2");
     HtmlOutputText output = new HtmlOutputText();
output.setValue("dynamic jsf text2");
System.out.println("hello output text2");
output.setRendered(true);
grid.getChildren().add(output);
HtmlInputText input = new HtmlInputText();
input.setSize(40);
input.setValueBinding("value", (ValueBinding) application.createValueBinding("#{sample.text2}"));
input.setRendered(true);
grid.getChildren().add(input);
System.out.println("hello output text1");
grid.setRendered(true);
formComp.getChildren().add(grid);
System.out.println("hello output text3:");
formComp.getRendersChildren();
formComp.setRendered(true);
public boolean getRendersChildren() {
     return true;
jsp code is
<h:form id="form1">
<h:panelGrid columns="2" binding="#{sample.formElements}">
</h:panelGrid>
<h:panelGrid id="panelgrid1" columns="1">
<h:panelGroup id="panelgroup1">
<h:outputText value="hardcoded jsf text1"/>
<h:inputText value="#{sample.text1}"/>
</h:panelGroup>
</h:panelGrid>
<h:commandButton id="add" action="#{sample.doAction}" value="add" type="SUBMIT"/>
</h:form>
when i click on the button its going into the method and diaplying s.o.p but the text box is not updated to the page.
why is it so.
i thought there may be a problem in calling the method directly thru button. i want to try thru javascript calling the bean method.
why is the page not updated.
can u help me out
thanks in advance
sree

How to call backing bean method from java script

Hi,
I would like to know how to call backing bean method from java script.
I am aware of serverListener and [AjaxAutoSuggest article|http://www.oracle.com/technology/products/jdev/tips/mills/AjaxAutoSuggest/AjaxAutoSuggest.html]
but i am running in to some issues with [AjaxAutoSuggest article|http://www.oracle.com/technology/products/jdev/tips/mills/AjaxAutoSuggest/AjaxAutoSuggest.html]
regarding which i asked for help in other thread with subject ....Question on AjaxAutoSuggest article (Ajax Transactions Using ADF and J...)
The reason why i posted is ( though i realise both are duplicates) .. that threads looks as a specific question to that article hence i would like to ask the quantified problem is asked in this thread.
So could any please letme know how to call backing bean method from java script
Thanks
Murali
Edited by: mchepuri on Oct 24, 2009 6:17 PM
Edited by: mchepuri on Oct 24, 2009 6:20 PM

Hello,
May know how to submit a button autoamtically on onload of page with clicking a welcome alert box. the submit button has managed button too to show a message on console using SOP.
the problem is.
1. before loading the page a javascript comes on which i clicked ok
2. the page gets loaded and the button is there which gets automatically clicked and the managed bean associated with prints a message on console using SOP.
I m trying to do this through server listener and click listener. the code is(adf jspx page)
<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
<f:view>
<af:document id="d1" binding="#{backingBeanScope.backing_check4.d1}">
<af:form id="f1" binding="#{backingBeanScope.backing_check4.f1}">
<af:commandButton text="commandButton 1"
binding="#{backingBeanScope.backing_check4.cb1}"
id="cb1" action="#{beanCheck4.submit1}"/>
<af:clientListener type="click" method="delRow"/>
<af:serverListener type= "jsServerListener"
method="#{backingBeanScope.backing_check4.submit1}"/>
<f:facet name="metaContainer">
<af:resource type ="javascript">
x=confirm("hi");
// if(x){
delRow = function(event){
AdfCustomEvent.queue(event.getSource(), "jsServerListener", {}, false);
return true;
</af:resource>
</f:facet>
</af:form>
</af:document>
</f:view>

</jsp:root>
the backing bean code is -----
public class classCheck4 {
public classCheck4() {
public String submit1() {
System.out.println("hello");
return null;
}

How to call a bean method from javascript event

Hi,
I could not find material on how to call a bean method from javascript, any help would be appreciated.
Ralph

Hi,
Basically, I would like to call a method that I have written in the page java bean, or in the session bean, or application bean, or an external bean, from the javascript events (mouseover, on click, etc...) of a ui jsf component. I.e., I would like to take an action when a user clicks in a column in a datatable.
Cheers,
Ralph

How to call a bean method in the faces-config file?

Hi,
I would like in my menu to call the method of a bean (it initialize some properties before opening the page) instead of opening directly the page, by I can't find how to do that.
I tried :
<managed-property>
<property-name>viewId</property-name>
<value>#{listInformationsController.listInformations}</value>
</managed-property>
And :
<managed-property>
<property-name>outcome</property-name>
<value>#{listInformationsController.listInformations}</value>
</managed-property>
With no success...
Can someone help me?
Thank you and merry christmas !

Hi,
a managed property only gives you a anlde to a bean or property, it doesn't execute it. To execute a bean, you can use a custom JSF PhaseListener that calls a bean method. The reference to the bean is achieve through value binding
ValueBinding vb = FacesContect.getCurrentInstance().getApplication().createValueBinding("Name of Managed Bean);
TypeOfBean theBean =(TypeOfBean) vb.getValue(FacesContext.getCurrentInstance());
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Frank

How can I call a servlet method from a javascript function

I want to call l a servlet method from a javascript function.
Does any one have an example of code.
Thinks in advance

Actually, as long as the servlet returns valid javascript, you can indeed "call it" from the client. It will initiate a request and return the result to the browser.
This example uses Perl, but it could be easily modified to go to a servlet instead.
Note that it is only supported in DOM browsers (IE6+/NN6+/etc)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
<title> Test server-side JS </title>
</head>
<body>
<script type="text/javascript">
function checkIt(variable, value)
var newScript = "cgi-bin/validateJS.cgi?"+variable+"="+value;
var body = document.getElementsByTagName('body').item(0)
var scriptTag = document.getElementById('loadScript');
if(scriptTag) body.removeChild(scriptTag);
script = document.createElement('script');
script.src = newScript;
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     script.id = 'loadScript';
     body.appendChild(script)
</script>
<p>Test.</p>
<form id="f1" action="">
<input type="text" name="t1" id="t1" onChange="checkIt(this.name, this.value)">
</body>
</html>
validateJS.cgi
#!/opt/x11r6/bin/perl
use CGI qw(:all);
my @valArray = split(/=/,$ENV{QUERY_STRING});
print "Content-type: text/javascript\n\n";
# myPass is the password
$myPass = "foobar";
if ("$valArray[1]" eq "$myPass")
print "alert(\"Success!!\")";
else
print "alert(\"Failure!!\")";

How to call the java method in java script function in a portal application

Hi Friends,
I am developing one application where i need to fetch the data from KM content and displaying it on the screen in regular interval. I wrote one method in JSPdynpage for fetching data from KM content now I need to call that java method in java script function.
java method(IComponentRequest request)
//Coode for fetching the KM content
function()
<b>//Need to call the java method</b>
setTimeout(function, 5000);//setting the time interval for this function
<<htmlb display code>>
If anybody can help me in calling the java method in java script function that will be very helpful for me.
Thanks in advance,
Sandeep Bonam

Hi,
Pls see if the following links could help.
http://www.rgagnon.com/javadetails/java-0170.html
http://www-128.ibm.com/developerworks/library/wa-resc/?dwzone=web
Regards

How to call a bean method from html component in jsf

hi all
i need a solution for this problem of mine.. actually em working on a jsf application with contains a jsf-jsp having a span containg html button inside my javascript. i want to call a method on click of this button and fetch some data which i have already populated in my bean.how do i do this??? i hv attached a piece of code of d same...
<script language="JavaScript" type="text/javascript">
function test(form){
var Title="DEBIT, gift, Request, TICK";
var Span=document.createElement("Span");
Span.style.position="absolute";
Span.style.left=(parseInt(110)-5)+"px";
Span.style.top=(+parseInt(274)-5)+"px";
Span.style.backgroundColor='Red';
var next=document.getElementById("forImage");
next.innerHTML="<img src='http://127.0.0.1:9000/action=clusterserve2dmap&sourcejobname=myjob_clusters' />";
Span.innerHTML="<[input type='button' >";
document.getElementById("forImage").appendChild(Span);
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Hi,
this gonna be a hack, but here's how it could work
- you create a Servlet that accesses the FacesContext to obtain a managed bean
- you issue a XmlHttpRequest from the button to your servlet to obtain the payload
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see http://www.thoughtsabout.net/blog/archives/000033.html for the middle part
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How to call Backing Bean method from href tag in JSF. -- URGENT

Hi guys,
i am new to JSF. i want one option. how to call a backing bean method from href.
I searched a lot. i found one component <commandLink>, but i cann't use <commandLink> i have to use only href which is client instructions.
If anyone knows pls help me. Its Urgent. If u can, give me the code also.
Suggestions will be appreciated.
Thanks
Rajesh

You can make use of the constructor of the backing bean or the @PostConstruct annotation if you want to use managed properties.
You may get some ideas out of this: [http://balusc.blogspot.com/2006/06/communication-in-jsf.html].

How to call backing bean method when user tabs out of af:inputListOfValues field

Hi,
I am using jdev 11.1.2.4.
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The fields I want to call method from is
<af:inputListOfValues id="appealNameId"
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                      value="#{bindings.AppealName.inputValue}"
                      label="#{bindings.AppealName.hints.label}"
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</af:inputListOfValues>
<af:serverListener type="onBlurNotifyServer"
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As first, check to see that you are using correct type for af:serverListener (thet one you are queue in the javaScript onBlurTxtField function)
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Hi SUBBA,
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http://msdn.microsoft.com/en-us/library/office/aa159897(v=office.11).aspx
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http://www.justanswer.com/computer-programming/7ntq7-download-file-sharepoint-server-via-excel-vba.html
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How to call formhandler handler method using js onclick function

I need to call formhandler handle method when user clicks on a link. I want to call that method in js function.
any help will be appreciated.

Please try the below.
In jsp page:
<a(HTML tag) href="javascript:submitfunction();"> My Submit Link </a(HTML tag end>
<dsp:input type="hidden" bean="MyFormHandler.handleMethod" id="submitForm"/>
In js file:
submitFunction(){
$(#submitForm).submit(); //or you can try .click();
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Gopinath Ramasamy
Edited by: Gopinath Ramasamy on Nov 29, 2012 1:06 PM
Added comment to 'a' tag to get the code displayed in the page

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How to call a bean method through a javascript function

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