With jsf 1.1 you can do it this way:
/**
* Check whether this request is an AJAX Request
* @return true if it is an AJAX Request; false otherwise
*/
protected boolean isAjaxRequest()
{
ServletRequest request = (ServletRequest)
FacesContext.getCurrentInstance().getExternalContext().getRequest();
try
{
return null !=
request.getParameter(org.ajax4jsf.renderkit.AjaxContainerRenderer.AJAX_PARAMETER_NAME);
}
catch (Exception e)
{
// OCJ 10 - throw exception for static resources.
return false;
}
}
-----Original Message-----
From: news [mailto:[email protected]] On Behalf Of Werner Punz
Sent: Mittwoch, 26. August 2009 10:27
To: [email protected]
Subject: Re: how to detect if a request is a ajax submit or normal submit?
Werner Punz schrieb:
> Dave schrieb:
>> We use jsf ri, tomahawk and ajax4jsf.
>>
>> For a request, on server side how to detect whether the request is a
>> ajax submit or normal submit? Is there a HTTP header for this? Thanks
>>
>
> In pre jsf 2.0 this is framework dependend, usually a request param is sent
> which marks the request as ajax request so that JSF can take over and do
> things differently for ajax.
> A unified marker for all this as well as some apis to check whether you
> are in an ajax cycle or not will be present in JSF 2.0 for now you have
> to check the framework documentation or the request itself which request
> parameter for the respective framework marks the request as an ajax one.
> (This is easy to do with the network monitor of firebug)
>
Forgot to say in your case the a4j parameter is the one you have to look
for. A4j does the heavy lifting for you.
Werner
