Mark,
It is my 1st trial of using Tiles.
I do not know how to choose. What are you using?
Could you show me some fragment codes with
struts-defs.xml,
struts-config.xml
action or controllerSomething?
Thanks
On Wed, 27 Oct 2004 17:26:55 +0200, Mark Lowe <[EMAIL PROTECTED]> wrote:
> Decide if you want to use an action or a tiles controller.. Or a tiles action..
>
> You can use an action if you return null rather than a forward (well
> for a forward) and use the controllor url attribute. But this means
> wiring an an action and a tile/ controllorUrl="/myaction.do"
>
> Mark
>
>
>
> On Wed, 27 Oct 2004 23:22:03 +0800, PC Leung <[EMAIL PROTECTED]> wrote:
> > Error messages display as follows.
> >
> > [ServletException in:/layout/menu.jsp] null'
> > java.lang.ClassCastException at
> > org.apache.jsp.layout.menu_jsp._jspService(menu_jsp.java:193) at
> > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
> > ...
> > ...
> >
> > after adding a few lines to test in the following class,
> >
> > public final class MyMenuAction extends TilesAction implements Controller {
> > public ActionForward perform( ComponentContext context,
> > ActionMapping mapping,
> > ActionForm form,
> > HttpServletRequest request,
> > HttpServletResponse response)
> > throws IOException, ServletException {
> > perform( context, request, response, getServlet().getServletContext() );
> > return null;
> > }
> > public void perform(ComponentContext context,
> > HttpServletRequest request, HttpServletResponse response,
> > ServletContext servletContext)
> > throws ServletException, IOException {
> > List menuItems = (List) context.getAttribute("items"); //
> > menuItems.add("customize1");
> > // this few lines
> > menuItems.add("customize2"); //
> > context.putAttribute("items", menuItems); //
> > ...
> >
> > Struts-defs.xml:
> > <definition name="erp.menu.home" path="/layout/menu.jsp"
> > controllerClass="com.common.tiles.MyMenuAction" >
> > <put name="title" value="Tiles" />
> > <putList name="items" >
> > <item value="customize1" link="/Welcome1.jsp" />
> > <item value="customize2" link="/Welcome2.jsp" />
> > </putList>
> > </definition>
> >
> > How can I add a few lines of creating a list to test the menu?
> >
> > Thanks
> >
> > On Tue, 26 Oct 2004 19:57:49 +0200, Mark Lowe <[EMAIL PROTECTED]> wrote:
> > > To do what you want you want a tiles controller, not an action.
> > >
> > > import org.apache.struts.tiles.ComponentContext;
> > > import org.apache.struts.tiles.ControllerSupport;
> > > import org.apache.struts.tiles.beans.SimpleMenuItem;
> > > import java.util.List;
> > > import javax.servlet.ServletContext;
> > > import javax.servlet.ServletException;
> > > import javax.servlet.http.HttpServletRequest;
> > > import javax.servlet.http.HttpServletResponse;
> > > import javax.servlet.http.HttpSession;
> > >
> > > public class GroupController extends ControllerSupport {
> > > public void execute(ComponentContext tileContext,
> > > HttpServletRequest request, HttpServletResponse response,
> > > ServletContext context) throws Exception {
> > >
> > > List menuItems = (List) context.getAttribute("items");
> > >
> > > .. add some menu items.
> > >
> > > context.putAttribute("items", menuItems);
> > > }
> > > }
> > >
> > > I;d try and avoid using a tiles controller as exception handling is an
> > > arse. Perhaps look at having a BaseAction that adds teh relevant items
> > > into the request.
> > >
> > > public abstract class BaseAction extends Action {
> > >
> > > protected abstract ActionForward doExecute(ActionMapping mapping,
> > > ActionForm form, HttpServletRequest request,
> > > HttpServletResponse response) throws Exception;
> > >
> > > public ActionForward execute(ActionMapping mapping, ActionForm form,
> > > HttpServletRequest request, HttpServletResponse response)
> > > throws Exception {
> > > ..
> > > request.setAttribute("items",menuItems); // perhaps application
> > > scope
> > >
> > > return doExecute(mapping, form, request, response);
> > > }
> > > }
> > >
> > > Now execute will be run for ever class that subclasses it, and they
> > > will have to use the doExecute(), method.. For more details check the
> > > xpetstore project out that uses this technique. This approach will
> > > allow you to make use of exception handlers.
> > >
> > > Mark
> > >
> > >
> > >
> > >
> > > On 26 Oct 2004, at 17:14, PC Leung wrote:
> > >
> > > > Hello world,
> > > >
> > > > The following is a fragment of tiles-defs.xml.
> > > > where MyMenuAction actually is UserMenuAction in Tiles.
> > > >
> > > > <definition name="erp.menu.home" path="/layout/menu.jsp"
> > > > controllerClass="com.common.tiles.MyMenuAction" >
> > > > <put name="title" value="Tiles" />
> > > > <putList name="items" >
> > > > <item value="customize" link="/Welcome.jsp" />
> > > > ^^^^^^^^^^ ^^^^^^^^^^^^^^^
> > > > </putList>
> > > > </definition>
> > > >
> > > > Where and how should I put the coding inside MyMenuAction
> > > > so that I can add a number of items which behaves as
> > > > a list of menu item?
> > > >
> > > > Thanks
> > > >
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