GeoServer is a full transactional Java (J2EE) implementation of the OpenGIS Consortium's Web Feature Server specification. Release 1.0.0 has been completely tested against the official OGC WFS test engine and supports Postgis, Oracle and Shapefile formats. Please visit http://geoserver.sf.net
GeoServer is built as a thin servlet layer on top of the latest beta release of GeoTools (http://geotools.org), another excellent sourceforge project. The server allows users to share geographic information using GML. GeoServer was originally written on top of Postgis, a spatial extension to PostgreSQL, and now also supports Shapefile and Oracle Spatial formats, with more coming every day. It is fully transactional, meaning users can modify their backend data using update and locking operations on the web. Feature filtering is also fully supported, in the backend data stores for speed where possible.
The 1.0.0 release is an important milestone. The server has been fully tested as the reference implementation of the OGC's Web Feature Service Specification. Our association with the GeoTools team led to a number of improvements, including the additional data formats, connection pooling, and the internal feature model. And our users have proven invaluable for testing beta versions and providing bug reports, fixes, and feedback.
Future improvements will include an integrated Web Map Service (WMS), a web administration interface, strong transactional locking, and greater speed and efficiency. The release can be downloaded at: