PortletRequest Vaadin 7和Liferay

Question

在Vaadin 6中， 您可以覆盖onRequestStart以获取PortletRequest对象，如此

@Override
    public void onRequestStart(PortletRequest request, PortletResponse response)

在Vaadin 7中，由于portlet类更改为com.vaadin.server.VaadinPortlet，因此不再需要onRequestStart来获取PortletReqeust对象，只需获取新的VaadinRequest对象。

 @Override
    protected void init(VaadinRequest request)

问题是将此问题转移到要使用的PortletRequest。有人找到了从Vaadin 7和liferay中检索PortletRequest的方法吗？

Answer 1

一旦你发现VaadinRequest既是VaadinPortletRequest又是VaadinServletRequest的信息，你可以检索PortletRequest和HttpServletRequest：

        VaadinPortletRequest vprRequest = (VaadinPortletRequest) request;
        PortletRequest pRequest = vprRequest.getPortletRequest();

        VaadinServletRequest vsRequest = (VaadinServletRequest)request;
        HttpServletRequest hsRequest = vsRequest.getHttpServletRequest();

Answer 2

这也可以

PortletRequest currentPortlet = VaadinPortletService.getCurrentPortletRequest();