Advanced MVC portlet

We have discussed the basic MVC portlet in the previous section. In this section, we will discuss the advanced MVC portlet features, such as portlet bridge extension, bringing portlets into the Control Panel, portlet configuration and preferences, redirecting, more actions, and interacting with the database.

Portlet bridge extension

As mentioned earlier, MVCPortlet extends LiferayPortlet and LiferayPortlet extends GenericPortlet. MVCPortlet is useful, since it specifies a set of JSP views such as about-jsp, config-jsp, view-jsp, and so on. In the real world, MVCPortlet may not be sufficient. Thus you should extend it.

For example, for the knowledge base admin, MVCPortlet got extended as com.liferay.knowledgebase.admin.portlet.AdminPortlet. In the portlet.xml file, the portlet-class element contains the fully-qualified class name of the portlet. Thus, to extend the MVC portlet bridge, the portlet-class element could be specified as follows:

<portlet-class>com.liferay...