WEB-INF/classes/example/HelloWorldPortlet.java
package example; import java.io.PrintWriter; import java.io.IOException; import javax.portlet.GenericPortlet; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import javax.portlet.PortletException; public class HelloWorldPortlet extends GenericPortlet { /** * The portlet's main view prints "Hello, World" */ public void doView(RenderRequest request, RenderResponse response) throws PortletException, IOException { PrintWriter out = response.getWriter(); out.println("Hello, World"); } }