JSR 286 PORTLET TUTORIAL PDF
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. Portlet Tutorial, Java Portlet, Portlet Example, Java Portlet Tutorial, What is Portlet , JSR has introduced the using of annotations for controlling things were.
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Execute mvn package in this directory. Portlets are responsible for generating markup fragments, as they are included on a page and are surrounded by other portlets. You can set up the run time environment for debugging portlets on the local development machine or on a remote server. Omit this tag if the portlet does not use this feature. Each portlet phase executes different operations:.
This class is part of the JBoss Portlet Bridge. When constructing XMLAccess scripts for use in installing standard portlets, use the following values: The last thing you want is for someone to grow frustrated with your site because of constant page Start JBoss Application Server if it is not already running. This section shows you how to develop portlets using the following frameworks and techniques: This makes it easier to support the standard portlet modes.
You can also run the build-war-file or build-ear-file tasks to build the. The configuration is slightly different from a JSP application. This example can be used as a base to configure instead of creating a new application. Create a new portal page and add the portlet to it. With the XML configuration below, the filter ApplicationMonitoringFilter involves in request handling on any deployed portlet.
The other difference compare to a regular portlet application, can be found in the portlet descriptor. This is a mandatory parameter to define what’s the default page to display. Define the portlet name. The EDIT button only appears with logged-in users, which is not the case in the screenshot.
Creating a simple portlet
Portlets handle requests in multiple phases. GenericPortlet which also can throw a PortletException. For more information, see The XML configuration interface. This will enable the corresponding buttons on the portlet’s window.
GenericPortlet class which implements the Portlet render method to dispatch to abstract mode-specific methods. Application class loaders AC1application class loaders AC2and application class loaders AC3 are portlet applications that branch from application extensions.
Creating a simple portlet
It must contain the following information:. This avoids having one XML tag within another.
One key difference is that portlets run in a portion of the web page. Maven versions can be downloaded from maven. This is the mandatory descriptor files for portlets.
These descriptors are defined by the Jave EE web. Use this file if you use services from the Public API javadoc package.
An action phase is a phase where some tutoroal changes. Get a request dispatcher on a file located within the web archive. The following shows the minimum elements required for the standard portlet deployment descriptor. Markup Fragments Portlets are responsible for generating markup fragments, as they are included on a page and are surrounded by other portlets.
Use this mode to configure a custom view or behavior. In short, portlets alleviate many of the traditional pain points associated with developing web apps. The GenericPortlet render implementation calls our implementation when the view mode is requested. The previous line simply copies an action parameters to a render parameter for this example.
The portal administrator can download a WAR file from the Internet and then use the portal administration interface to install the portlet to WebSphere Portal Express. The Global metadata is declared in the portlet.
JavaServer Pages Portlet Example. Another difference is that portlets run only in a portal server, like the one in Liferay Portal. Events are used for IPC. Portlets jzr be placed on pages by users or portal administrators, who can place several different portlets on a single page.