Portlets are responsible for generating markup fragments, as they are included on a page and are surrounded by other portlets. It uses the portlet response object to write simple output directly to the portal page.
A particular class loader can reference other classes as long as the other classes tytorial be loaded by the same class loader or any of its jjsr, but not its children.
The third method mixes form submission and action request. Liferay Portal also contains an OSGi runtime. This website uses cookies to improve your experience while you navigate through the website.
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Necessary cookies are absolutely essential for the website to function properly. Web apps in Liferay Portal are called portlets. With that said, you can use a variety of technologies to develop portlets that run on Liferay Portal.
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We'll assume you're ok with this, but you can opt-out if you wish. If you are familiar with the web. To facilitate deployment of portlet applications and complex portlets, you can provide a portlet configuration file that can be invoked by the XML configuration interface XMLAccess. Application class loaders AC1application class loaders AC2and application class loaders AC3 are portlet applications that branch from application extensions.
For more information, see The XML configuration interface. To do this, proceed as follows: To deploy a portlet and run it on the server, it must be packaged in the form of a Web application ARchive or WAR file. Compile your Java source files. Hello World provides the fewest methods required for a portlet.
If this value has not been specified, specify the WAR file name of the rutorial application in its place. The graphic illustrates where WebSphere Portal Express and portlet applications fit into the classloading hierarchy. Refer to the documentation for Rational Application Developer for complete setup instructions.
If you suspect a classloading problem, ensure that the required classes are in the appropriate classpath according to the classloading hierarchy.
A particular class loader can reference other classes as long as the other classes can be loaded by the same class loader or any of its ancestors, but not its children. The Hello World portlet provides an introduction to writing your first portlet.
This JSR development tutorial shows how to master request-response programming using the PortletRequest and PortletResponse objects of the Portlet JSR Portlet defines a lifecycle for events, so that eventing is name as defined in the previous code example in the portlet section of the file. The Hello World portlet provides an introduction to writing your first portlet.
In fact, GateIn 3. Portlets handle requests in multiple phases. View the basic steps for creating a simple portlet, that include writing the portlet code, compiling java source, creating the JAR file, writing the portlet descriptors, setting up the WAR file directory structure, and packaging and deploying portlets. Help Provides information to the user as to how to use the portlet.
The portlet specification only provides a mechanism for a portlet to read its own URL parameters or those declared as public render parameters. This tutorial explains the tags that developers can use to create layouts.
These descriptors are defined by the Jave EE web. Even so, the advantages of modularity are so great that we still recommend you develop your portlets as OSGi modules. The declared MIME types must match the tuotrial of the portlet. The three states defined by the JSR specification are:.
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