Hello Marwa,
The answer provided by Thiago is much simpler.
Just put your data in a data attribute of a tag and then use the tutorial ajax
and zones to send this data to a server side event handler.
If you want to do it automatically without triggering a javascript event, just
put you script in an on document ready event, to make sure your javascript code
is called once the page is rendered and loaded by the browser.
===> in html page
<div id=“myId” data-mydata=“mydata"></div>
===> javascript at the end of html page
$(function() {
var dataToSend = $(‘#myId’).data(‘mydata’);
ajax(‘pageData', {
data: dataToSend, // This doesn't need to be the same
element as the one two lines above
// Callback called when the request is finished.
// response.json is the object returned by the event handler method
success: function(response) {
alert('sent to server');
}
});
});
=====> in java page
JSONObject onPageData()
{
return new JSONObject("origin", "componentAction");
}
You can use jquery or something else.
Best
Numa
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> Le 28 août 2018 à 12:22, marwa hussein <marwa.huss...@gmail.com> a écrit :
>
> Hello,
>
> Thanks all for your suggestions. I followed the example shown in
> https://tapestry.apache.org/ajax-and-zones.html in "Invoking server-side
> event handler methods from JavaScript" but here the event is in the java
> code "server-side" and is invoked from the Javascript code "onClick()" ,
> but what I want is the opposite direction, sending a "string variable" from
> a tag appended in the clientside javascript code to the java code "in the
> serverside".
> For now, I will test to use hidden input (although I didn't want to use a
> form submit) and I will see if I can make it or not ...
>
> Thank you all for your help and valuable suggestions, and of course, if
> anyone face the same problem before and could give me hints to how to do it
> please tell me.
> Regards,
> Marwa
