XT-Ajax: doAjaxAction - ServerParameters not working

[NJansen]

Hi,

I'm trying to pass some JSON object as a parameter by an Ajax Action Event to the server.

Without any parameters (null) the event works perfectly and does what its supposed to do.

But when I put some JSON object as "server-parameters" there is not response to the click at all.

This is the definition of the doAjaxAction method in the manual.

onclick="XT.doAjaxAction(event-id, source-element, server-parameters, client-parameters);"

The following line works perfectly

<form name="" action="">
<input id="testEvent" type="button" value="Press" onclick="XT.doAjaxAction('testEventAction', this,);">
<div id="content"></div>
</form>

This one doesn't do anything. There is no reaction to that onlick event at all

<form name="" action="">
<input id="testEvent" type="button" value="Press" onclick="XT.doAjaxAction('testEventAction', this, {'testparam' : 'TESTVALUE'},null);">
<div id="content"></div>
</form>

The is the Action Handler

public class TestActionsHandler extends AbstractAjaxHandler {
  public AjaxResponse testEventAction(AjaxActionEvent event) {
        // doing here something with the parameter Value via event.getParameters().get("testparam")
    	AppendContentAction action = new AppendContentAction("content", new SimpleText("test"));
        AjaxResponse response = new AjaxResponseImpl();
        response.addAction(action);
        return response;
    }
}

the servlet.xml

<!-- Ajax Interceptor -->
<bean id="ajaxInterceptor" class="org.springmodules.xt.ajax.AjaxInterceptor">
  <property name="handlerMappings">
    <props>
      <prop key="/preview.*">ajaxTestActionsHandler</prop>
    </props>
  </property>
</bean>
		
<!-- Ajax Handling -->
<bean id="ajaxTestActionsHandler" class="ajax.TestActionsHandler"/>

can anybody tell me why that event doesn't fire when i wanna pass some JSON parameters to the server.

Thanks in advance



UPDATE:

There is a response. I traced the call and there seams to be a problem within the AjaxInterceptor. Within the initEvent method the JSONObject never returns. The code just stops at the last line of the following snippet. I tried to look into JSON itself but didn't find anything there.
(The paramsString is a valid JSON Object)

 
private void initEvent(AjaxEvent event, HttpServletRequest request) {
  String paramsString = request.getParameter(this.jsonParamsParameter);
  if (paramsString != null) {
    Map<String, String> parameters = new HashMap<String, String>();
    JSONObject json = JSONObject.fromString(paramsString);

ANY contribution is appreciated.

Thank you