Template:Short description Portlets are pluggable user interface software components that are managed and displayed in a web portal. A portlet responds to requests from a web client with and generates dynamic content. A portlet is managed by a portlet container.
DescriptionEdit
A portlet is a pluggable user interface software component that is managed and displayed in a web portal,<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> for example an enterprise portal or a web CMS. A portlet can aggregate (integrate) and personalize content from different sources within a web page. A portlet responds to requests from a web client with and generates dynamic content.<ref name=":0">Template:Cite book</ref>
Portlets produce fragments of markup<ref name=":1">Template:Cite book</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> (HTML, XHTML, WML) that are aggregated into a portal.<ref name=":2">Template:Cite book</ref> Hence, a portlet (or collection of portlets) resembles a web-based application that is hosted in a portal.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Some examples of portlet applications are e-mail, weather reports,<ref name=":2" /> discussion forums, and news.
Portlet containersEdit
A portlet is managed by a portlet container.<ref name=":1" /> A portlet container runs portlets, provides them with the required runtime environment, manages their life cycles.<ref name=":0" /> A container also provides persistent storage mechanisms for the portlet preferences.
A portlet container receives requests from the portal to execute requests on the portlets hosted by it. A portlet container sends data to the portal for aggregation, but is not responsible for aggregating the content produced by the portlets; the portal itself handles aggregation.<ref name=":0" /> A portal and a portlet container can be built together as a single component of an application suite or as two separate components of a portal application.
StandardsEdit
Template:See also Portlet standards are platform independent application programming interfaces that are intended to enable software developers to create portlets that can be plugged into any portal supporting the standards. An example is the Java Portlet Specification.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>