Portlet

Portlets are pluggable user interface software components that are managed and displayed in a web- or enterprise- portal.

Portlets produce fragments of markup (HTML, XHTML, WML) code that are aggregated into a portal. Typically, following the desktop metaphor, a portal page is displayed as a collection of non-overlapping portlet windows, where each portlet window displays a portlet. Hence a portlet (or collection of portlets) resembles a web-based application that is hosted in a portal.

Some examples of portlet applications are email, weather reports, discussion forums, and news.

Portlet standards are intended to enable software developers to create portlets that can be plugged into any portal supporting the standards.

Portlet – based solutions are an example of component-based software engineering.

External links

Look up portlet in Wiktionary, the free dictionary.

Web interfaces

Server-side

Protocols	CGI SCGI FCGI AJP WSRP WebSocket

Server APIs	C NSAPI C ASAPI C ISAPI COM ASP Java servlet container Portlet container CIL System.Web.IHttpHandler Python WSGI Ruby Rack JavaScript JSGI Perl PSGI Lua WSAPI

Apache modules	mod_jk mod_lisp mod_mono mod_parrot mod_perl mod_php mod_proxy mod_python mod_wsgi mod_ruby Phusion Passenger

Topics	Web resource vs. Web service Open API Webhook Application server comparison

Client-side

Browser APIs

Framework APIs

W3C	Audio Canvas CORS File Geolocation IndexedDB Microdata SSE SVG Video WebRTC WebSocket Web messaging Web storage Web worker XMLHttpRequest

Khronos	WebCL WebGL

Others	Gears Web SQL Database (formerly W3C)

Topics

Portlet

See also

External links