Create a simple JSR 286 Portlet - Part 2

In the last article we had completed the setup.


Now we will create our first JSR 286 Portlet.

1. In Eclipse navigate and go to File->new->other.

Comparing Servlets and Portlets Part 3 : Portlet deployment descriptor file

In the last article we saw how a RequestDispatcher works for both Servlets and Portlets.

Difference between a web and a portlet application.

A basic web application will have a web.xml file, Servlet classes and JSP's. The web.xml file helps to configure the Servlets which make the application. It helps a developer to define which URL's will be handled by which Servlets. How security will be applied to these URL's, session management etc.

Comparing Servlets and Portlets Part 2 : Using RequestDispatcher

In the last article we saw how we create a simple Servlet or a Portlet by implementing or extending appropriate interfaces and classes.

Lets continue to see what other differences are there.

RequestDispatcher

Unlike a Servlet where we can use either ServletRequest or ServletContext to get a RequestDispatcher object in a Portlet we can only use the PortletContext to do that. Just to refresh your memory RequestDispatcher can be used to forward the request to another Servlet or a JSP for further processing.