Jetspeed是Apache组织开发的一个采用Java和XML的开放源代码的企业信息门
户的实现。门户可以让终端用户可以很方便的访问网络
资源（应用、数据库等）。用户可以通过Web浏览器、WAP手机、寻呼机以及其它一些智能设备来访问Portal。Jetspeed就像是中心的控制器，
可以很方便地以各种形式展示那些来自不同数据源的数据。
该版本值得关注的改进内容有：
* Jetui Client Side Customization Engine
* Drag and Drop Support
of portlets
* Jetspeed Toolbox dockable portlet selector, layout
selector, and skin selector
* Dockable Jetspeed Navigator to navigate
over spaces, maintenance over pages, folders, links
* Jetspeed
Spaces, secured areas of the portal site for workgroups and projects
*
JAX RS Services for Portal Customization and Registry manipulations
*
Open ID Support
* Preview Portlet Mode from Jetspeed Toolbox
*
Improved LDAP synchronization, authentication, and maintenance of LDAP
credentials
* CAS Authentication
* Dynamic PSML - dynamically
overlay external site maps such as other web sites or content
repositories onto the Jetspeed site map to dynamically navigate of
external content within portal
* PSML Templates - templacized,
secured pages that overlay over URL addressable pages to merge
template-portlets such as toolbox and navigator into a single page
*
Fragment References - also known as Portlet Instances - allow for
referencing preconfigured portlets with preferences from a standard page
*
Improved Portlet API 2.0 Support and Compliance
* Improved Installer
to support two kinds of installations (min, demo)
* New User Manager
supporting true paging over large user databases
下载
Jetspeed 2.2.1 详细信息，请看http://wiki.lupaworld.com/index.php/Jetspeed | 
