FacesRequestAttributes.java 文件源码

public static void setAttribute(String name, Object value, ExternalContext externalContext) {
    Object session = externalContext.getSession(true);
    if (session instanceof PortletSession) {
        ((PortletSession) session).setAttribute(name, value, PortletSession.APPLICATION_SCOPE);
    }
    else {
        externalContext.getSessionMap().put(name, value);
    }
}