Navigation with portlets

Hi,
I'm new to portlets and i'm trying to understand how they work. I'd like to know how to build a web-app. I know how to build an app with servlets/JSPs but not with portlets. Are the views implemented by JSPs or by portlets. And what about servlets. do i have to give them up? can i have several portlet per application or usually just one?
please help me a little, i just can't find any good tutorial that shows me how to build a web-app. i've found helloworld tutorial but there is only screen in this application and thus it doesn't show me how to navigate between the pages.

Thanks for your help. I checked all references to xml in the two sources and I don't see a difference. The code is below.
<%@ Pageanguage="vb" AutoEventWireup="false" Codebehind="WebForm2.aspx.vb" Inherits="webapplication1.WebForm2" EnableSessionState="False" %>
<%@ RegisteragPrefix="uc1" TagName="calendarcontrol" Src="calendarcontrol.ascx" %>
<%@ RegisteragPrefix="uc1" TagName="CalendarPopupControl" Src="CalendarPopupControl.ascx" %>
WebForm2<a href="pt://images/plumtree"></a>

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"vijay patel" <[email protected]> wrote:
>
Hi,
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Jalpesh Patadia <[email protected]> wrote:
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Shah Sidi wrote:
How can I get a portlet to invoke the JSP that it was associated within EBCC when
the portal page is invoked from the navigation tab (regardless of whatJSP was
invoked last due to a portlet webflow) ?
This can be best explained by describing the scenario:
I have 2 portal pages P1 & P2. Each portal page contains a portlet.The portlet
on portal page P2 is associated with a page, say J1.jsp & a portletwebflow (generated
by the portlet wizard). The portlet webflow contains a flow betweenJ1.jsp & J2.jsp
for a certain event.
- When the tab is clicked to show portal page P2, the portlet displayscontent
generated by J1.jsp as expected. This content contains a link to navigateto J2.jsp
- When a link is clicked to flow to J2.jsp (<portlet:createWebflowURLevent="e1"/>),
content generated by J2.jsp is displayed by the portlet on page P2as expected.
- I click on the main navigation tab to go to portal page P1
At this point if I click the main navigation tab to go to P2, the portletstill
displays content generated by J2.jsp instead of re-invoking J1.jsp.Is there a
way to influence this behavior to always invoke the JSP that was associatedwith
the portlet in EBCC when the portal page is displayed by clicking onthe navigation
tab ?
Any help is greatly appreciated. Thanks !

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