Portlet Tutorials

Hello World Portlet Tutorial: The Hello, World tutorial shows the most basic portlet and its configuration in a simple browser page.
Render Parameters Tutorial: Render parameters are used to maintain state.
Action Tutorial: An action request is a request for the portlet to do something before it is rendered.
Portlet Modes Tutorial: Portlets use modes to subdivide their functionality, performing different tasks and creating different content depending on the current mode.
Portlet JSP Tutorial