Sharing value between hooks and portlets

In Hooks:

HttpSession session = request.getSession(false);

String token = “Welcome”;

session.setAttribute("LIFERAY_SHARED_newtoken", token);

In Portlets:

HttpSession session2 = request.getSession();

String sess1 = (String)session.getAttribute("LIFERAY_SHARED_newtoken");

We need to use LIFERAY_SHARED_ as prefix in liferay to share.