Matt Raible wrote:
Yes, it looks in all contexts - so if you put it in any of
them it should work. The one from reading menu-config.xml gets put
in application, allowing you to customize at the different
levels/scopes.
Matt
Matt,
Thanks for your help. But it seems not really to work for me! :-(
Hmmm, I did the following in my Struts-Action:
session.getServletContext().setAttribute(MenuRepository.MENU_REPOSITORY_KEY,
repository);
and I also tried
session.setAttribute(MenuRepository.MENU_REPOSITORY_KEY,
repository);
In the JSP I removed:
<%
pageContext.setAttribute("repository",
(MenuRepository)application.getAttribute(MenuRepository.MENU_REPOSITORY
_KEY));
%>
so there remains simply:
<menu:useMenuDisplayer name="CoolMenu4"
repository="repository">
<menu:displayMenu name="WNT"/>
<menu:displayMenu name="AD"/>
<menu:displayMenu name="Tools"/>
<menu:displayMenu name="Info"/>
<menu:displayMenu name="Home"/>
</menu:useMenuDisplayer>
The result is an exception:
2004-06-25 16:44:34 ApplicationDispatcher[/Echnaton] Servlet.service()
for servlet jsp threw exception
javax.servlet.jsp.JspException: The menu
repository could not be found.
at
net.sf.navigator.taglib.UseMenuDisplayerTag.doStartTag(UseMenuDisplayerTag.java:148)
at
org.apache.jsp.Templates.EWCHeader_jsp._jspx_meth_menu_useMenuDisplayer_0(EWCHeader_jsp.java:181)
at
org.apache.jsp.Templates.EWCHeader_jsp._jspService(EWCHeader_jsp.java:132)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
......
Any idea what I am missing?
Tom
On Jun 25, 2004, at 8:05 AM, Thomas Bednarz wrote:
Matt Raible wrote:
I'd put it into the request.
request.setAttribute("repository", repository);
Note that you'll have to do this every time you want to view the page
since the repository will disappear once the page is done loading.
You could also put it into the user's session and then it would stay
there for duration of their session - however long you have that set
to.
Matt
Matt,
I found a different, maybe less elegant solution to that:
In the Struts-Action I put the stuf f in the application context:
session.getServletContext().setAttribute(MenuRepository.MENU_REPOSITORY
_KEY, repository);
In the Jsp I take it from the application context:
<%
pageContext.setAttribute("repository",
(MenuRepository)application.getAttribute(MenuRepository.MENU_REPOSITORY
_KEY));
%>
At least this works fine but may not be efficient.
What I do not understand: (Just for a better understanding how it
works behind the scenes)
<menu:useMenuDisplayer name="CoolMenu4"
repository="repository">
.........
</menu:useMenuDisplayer>
Where does it look for the "repository" object? Does it lookup in all
contexts (Page, Request, Session, Application)?
Cheers
Tom
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of
Thomas Bednarz
Sent: Friday, June 25, 2004 2:22 AM
To: Struts menu user list
Subject: [struts-menu] Newbee - How to create a dynamic menu in a
Struts Action?
Hi,
I usually work with Velocity and not with JSP. However I decided to
build my menu with JSP and mix Velocity and JSP. The problem is, that
I have no experience with JSP.
To create a dynamic menu I looked at the database sample. I have the
following question:
How can I put my menu repository from a Struts Action into a JSP Page
Context ?????
I have a Struts Action that builds the menu as follows:
public ActionForward perform(ActionMapping mapping, ActionForm
form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
ActionForward af = super.perform(mapping, form, request,
response);
if (af != null)
return af;
........
buildMenu(session);
.....
return (new ActionForward("/Templates/Test.jsp"));
}
protected void buildMenu(HttpSession session)
{
MenuRepository repository = new MenuRepository();
MenuRepository defaultRepository = (MenuRepository)
session.getServletContext().getAttribute(MenuRepository.MENU_REPOSITORY
_KEY);
repository.setDisplayers(defaultRepository.getDisplayers());
MenuComponent mc = new MenuComponent();
mc.setName("Test Menu 1");
String title = "Menu Title";
mc.setTitle(title);
//mc.setLocation("location");
repository.addMenu(mc);
// WHERE TO PUT THE REPOSITORY OBJECT (IN WHICH CONTEXT??)
// I should do something like
JSPPageContext.setAttribute("reporsitory", repository);
}
In the Test.jsp I would like do do something like:
<menu:useMenuDisplayer name="ListMenu"
repository="repository">
<menu:displayMenu name="Test_Menu_1"/>
</menu:useMenuDisplayer>
Many thanks for your help!
Tom.
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