And how about storing the value to a session or a cookie from javascript
and reading from java server through an implemantation of observer
parttern? It would work in any case, in any framework.
Στις Τετ, 29 Αυγ 2018, 2:39 μ.μ. ο χρήστης marwa hussein <
marwa.huss...@gmail.com> έγραψε:
> Hi,
> Thank you all for guiding me to the solution especially "Numa" .. and this
> is how I solved it:
> for the .tml
> <p id="myId" data-mydata="testvalue"/>
>
> and in the JS JQuery file, I passed the variable in a JSON object --> data:
> {myData:dataToSend}
> $('#myId').click(function() {
> var dataToSend= $('#myId').data('mydata');
> ajax('answer', {
> element: $('#myId'),
> data:{ myData:dataToSend},
> success: function(response) {
> }
> });
> });
>
> and in java file, I used @RequestParameter("myData") to get the value from
> the JSON object:
> @OnEvent("answer")
> @PublishEvent
> public void answer(@RequestParameter("myData") String varName)
> {
> System.out.println("Variable name is :"+ varName );
> }
>
> Regards,
> Marwa
>
>
> On Tue, Aug 28, 2018 at 3:20 PM Numa Schmeder <n...@dfacto.ch> wrote:
>
> > 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
> >
> >
> >
> > <http://www.dfacto.ch/> Numa Schmeder www.dfacto.ch <
> > http://www.dfacto.ch/>
> > n...@dfacto.ch <mailto:n...@dfacto.ch> | M +41 79 538 30 01
> >
> > DIGITAL STRATEGY | DESIGN | DEVELOPMENT
> >
> >
> >
> >
> > > 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
> >
> >
>
> --
>
>
>
> *Marwa Hussein M. TA @ Information Systems Department Faculty of Computers
> & Information Assuit University*
> <imanhe...@yahoo.com>
>
