This is work for me on liferay 7.1
For event fire on different page
1) Setup the portal-ext.properties
portlet.event.distribution=layout-set # For Liferay 7.1 and also i think for 6.2, you can check property description for specific version on google
2) Setup the configuration for Event Producer
in annotation based on top of the class like below properties"com.liferay.portlet.action-url-redirect=true",
"javax.portlet.supported-publishing-event=selectedReport;https://my-liferay-namespace.com/events"
in xml based, in liferay-portlet.xml, this is must require to work the event on different page
<action-url-redirect>true</action-url-redirect>
in portlet.xml
<portlet>
...
...
<supported-publishing-event>
<qname xmlns:x="https://my-liferay-namespace.com/events">x:selectedReport</qname>
</supported-publishing-event>
</portlet>
<event-definition>
<qname xmlns:x="https://my-liferay-namespace.com/events">x:selectedReport</qname>
<value-type>java.util.HashMap</value-type>
</event-definition>
....
3) Setup the configuration for Event Receiver
in annotation based on top of the class like below properties
"javax.portlet.supported-processing-event=selectedReport;https://my-liferay-namespace.com/events"
in xml based, in portlet.xml
<portlet>
...
...
<supported-processing-event>
<qname xmlns:x="https://my-liferay-namespace.com/events">x:selectedReport</qname>
<supported-processing-event>
</portlet>
<event-definition>
<qname xmlns:x="https://my-liferay-namespace.com/events">x:selectedReport</qname>
<value-type>java.util.HashMap</value-type>
</event-definition>
4) Event Producer Code: Generate event and redirect the page
public void fireEventAction(ActionRequest actionRequest, ActionResponse actionResponse) {
QName qName = new QName("https://my-liferay-namespace.com/events", "selectedReport");
ThemeDisplay themeDisp = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY);
HashMap<String, Object> responseDataMap = new HashMap<String, Object>();
responseDataMap.put("myData", "My Test Data");
actionResponse.setEvent(qName, responseDataMap);
long plid = 0;
try {
plid = PortalUtil.getPlidFromPortletId(themeDisp.getScopeGroupId(), "com_EventReceiverPortlet");
} catch (PortalException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
PortletURL url = PortletURLFactoryUtil.create(actionRequest, "com_EventReceiverPortlet", plid,
PortletRequest.RENDER_PHASE);
try {
actionResponse.sendRedirect(url.toString());
} catch (IOException e1) {
e1.printStackTrace();
}
}
5) Event Receiver Code: Receive event and check by the name
@Override
public void processEvent(EventRequest request, EventResponse response) throws PortletException, IOException {
Event event = request.getEvent();
System.out.println("==Get Respsoe========================================================"); if (event.getName().equals("selectedReport")) {
System.out.println("selectedReport Event found!");
HashMap<String, Object> eventValue = (HashMap<String, Object>) event.getValue();
System.out.println("===========show value of event " + eventValue.get("myData"));
}
super.processEvent(request, response);
}
or else for specific event seprate method
@EventMapping(value = "{https://my-liferay-namespace.com/events}selectedReport")
public void myEvent(EventRequest request, EventResponse response) throws PortletException, IOException {
_logger.info("Enter into myEvent========================");
Event event = request.getEvent();
HashMap receivedParamMap = (HashMap) event.getValue();
}
