Hi,
I had a requirement for sharing session information from Liferay Portal to Servlet deployed in same Liferay server. so, i developed Liferay portlet which callsPortalSession setParameter method and i store a string value to it. In my servlet, i use request.getSession().getParameter("NAME").
But, unfortunately, i got null value there. (Please note that servlet was a plain servlet and does not contain any liferay code in that war). After doing some reserarching, i found below evidence to achive this ::
STEP 1.
For Portlets who will share (i.e setAttribute() ) session attributes(s) need to add following entry in liferay-portlet.xml
<portlet>
<private-session-attributes>false</private-session-attributes>
</portlet>
STEP 2.
By default “LIFERAY_SHARED_” prefix is used for sharing session attribute to other WARs. It can be customized with in portal.properties ‘s session.shared.attributes value.
portletSession.setAttribute( "LIFERAY_SHARED_myVar",value,PortletSession.APPLICATION_SCOPE);
Other portlet(s) in different WAR can access it as below :
portletSession.getAttribute( "LIFERAY_SHARED_myVar",PortletSession.APPLICATION_SCOPE);
by implementing above code, i was able to get value stored in one portlet in other portlet which are deployed in different war files.
Now, i added a servlet in portlet where i was getting value from session.
I added below entry in liferay-portlet.xml
<portlet>
<private-session-attributes>true</private-session-attributes>
</portlet>
and i added below code in my portlet
Object value=portletSession.getAttribute( "LIFERAY_SHARED_myVar",PortletSession.APPLICATION_SCOPE);
request.getSession().setAttribute("NAME", value);
Now, in my servlet, i was able to get value of NAME session attribute as below ::
Object valueFromSession=request.getSession().getAttribute("NAME");
For knowing more on Private Session xml attribute, refer my next blog post.
Cheers,
Ujjwal Soni
I had a requirement for sharing session information from Liferay Portal to Servlet deployed in same Liferay server. so, i developed Liferay portlet which callsPortalSession setParameter method and i store a string value to it. In my servlet, i use request.getSession().getParameter("NAME").
But, unfortunately, i got null value there. (Please note that servlet was a plain servlet and does not contain any liferay code in that war). After doing some reserarching, i found below evidence to achive this ::
STEP 1.
For Portlets who will share (i.e setAttribute() ) session attributes(s) need to add following entry in liferay-portlet.xml
<portlet>
<private-session-attributes>false</private-session-attributes>
</portlet>
STEP 2.
By default “LIFERAY_SHARED_” prefix is used for sharing session attribute to other WARs. It can be customized with in portal.properties ‘s session.shared.attributes value.
portletSession.setAttribute( "LIFERAY_SHARED_myVar",value,PortletSession.APPLICATION_SCOPE);
Other portlet(s) in different WAR can access it as below :
portletSession.getAttribute( "LIFERAY_SHARED_myVar",PortletSession.APPLICATION_SCOPE);
by implementing above code, i was able to get value stored in one portlet in other portlet which are deployed in different war files.
Now, i added a servlet in portlet where i was getting value from session.
I added below entry in liferay-portlet.xml
<portlet>
<private-session-attributes>true</private-session-attributes>
</portlet>
and i added below code in my portlet
Object value=portletSession.getAttribute( "LIFERAY_SHARED_myVar",PortletSession.APPLICATION_SCOPE);
request.getSession().setAttribute("NAME", value);
Now, in my servlet, i was able to get value of NAME session attribute as below ::
Object valueFromSession=request.getSession().getAttribute("NAME");
For knowing more on Private Session xml attribute, refer my next blog post.
Cheers,
Ujjwal Soni
No comments:
Post a Comment