在Liferay中,我可能遇到了一个可能简单的Spring Portlet重定向和jsp渲染问题.
I am stuck with a probably simple Spring Portlet redirect and jsp render problem in Liferay.
我在Liferay page1 和 page2 中有两个页面,还有一个spring mvc portlet portletA ,其中有两个JSP defaultView.jsp 和 second.jsp .
I have two Pages in Liferay page1 and page2 and one spring mvc portlet portletA with two JSPs defaultView.jsp and second.jsp.
page1和page2都实例化portletA.
page1 and page2 both instantiate portletA.
portletA默认通过调用@RenderMapping()方法加载defaultView.jsp.
portletA loads by default the defaultView.jsp by calling the @RenderMapping() method.
DefaultViewController :
@RenderMapping public String renderDefaultView() { return "defaultView"; }可以通过http重定向(@ActionMapping resp.sendRedirect())从defaultView.jsp调用liferay page2
From defaultView.jsp the liferay page2 can be called by http redirect (@ActionMapping resp.sendRedirect())
defaultView.jsp :
$(nRow).click(function() { window.location.href = "<portlet:actionURL name='doGotoPage2' />" });DefaultViewController :
@ActionMapping("doGotoPage2") public void doGoToMedicalAid(ActionRequest req, ActionResponse resp) { try { resp.sendRedirect("/group/project/page2"); } catch (IOException ex) { Logger.getLogger(DefaultViewController.class.getName()).log(Level.SEVERE, null, ex); } }现在我想知道
从页面1重定向后,如何告诉portletA在页面2上调用不同的@RenderMapping方法?
how can I tell portletA to call a different @RenderMapping method on page2 after the redirect from page1 ?
我希望portletA在page2上呈现second.jsp:
I would like portletA to render second.jsp on page2:
@RenderMapping(value = "renderSecondPage") public String renderSecondPage() { return "second"; }据我了解,我无法在sendRedirect之前或之后的操作阶段设置renderParameters!
As far as I understand, I can't set renderParameters in the action phase before or after a sendRedirect!
例如,这不起作用,并导致 java.lang.IllegalStateException:设置渲染参数已被调用
For example, this doesn't work and results in an java.lang.IllegalStateException: Set render parameter has already been called
resp.sendRedirect("/group/project/page2"); resp.setRenderParameter("render", "renderSecondPage");非常感谢您的帮助!
推荐答案Portlet API文档指出:
在以下任何一种ActionResponse方法之后,无法调用sendRedirect方法 界面已被调用:
The sendRedirect method can not be invoked after any of the following methods of the ActionResponse interface has been called:
- setPortletMode
- setWindowState
- setRenderParameter
- setRenderParameters
- setPortletMode
- setWindowState
- setRenderParameter
- setRenderParameters
您需要使用另一个作用域来存储属性.
You'll need to use another scope for storing the attribute.
更多推荐
Spring Portlet MVC sendRedirect和setRenderParameter
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