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Apache Tomcat

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Apache Tomcat
Developer(s)Apache Software Foundation
Stable release
6.0.16 / February 7, 2008 (2008-02-07)
Repository
Written inJava
Operating systemCross-platform
TypeServlet container
HTTP web server
LicenseApache License 2.0
Websitehttp://tomcat.apache.org

Apache Tomcat is a Servlet container developed by the Apache Software Foundation (ASF). Tomcat implements the Java Servlet and the JavaServer Pages (JSP) specifications from Sun Microsystems, and provides a "pure Java" HTTP web server environment for Java code to run. Tomcat should not be confused with the Apache web server, which is a C implementation of a HTTP web server; these two HTTP web servers are not bundled together. Apache Tomcat includes tools for configuration and management, but can also be configured by editing configuration files that are normally XML-formatted.

Development status

Members of the ASF and independent volunteers develop and maintain Tomcat. Users have free access to the source code and to the binary form of Tomcat under the Apache License. The initial Tomcat release appeared with versions 3.0.x (previous releases were Sun internal releases, and were not publicly released). Tomcat 6.0.16 is the latest production quality release[1] of the 6.0.x trunk (the branch for the 2.5 servlet specification)[2], as of 2008.

Product features

An overview of the different versions can be found on the Apache website.[2]

Tomcat 3.x (initial release)

  • Merger of donated Sun Java Web Server code and ASF JServ in 1999.
  • Implements Servlet 2.2 and JSP 1.1 specifications.

Tomcat 4.x

Tomcat 5.x

  • implements the Servlet 2.4 and JSP 2.0 specifications
  • reduced garbage collection, improved performance and scalability
  • native Windows and Unix wrappers for platform integration
  • faster JSP parsing

Tomcat 6.x

  • implements the Servlet 2.5 and JSP 2.1 specifications
  • support for Unified Expression Language 2.1
  • designed to run on Java SE 5.0 and later
  • support for Comet through the CometProcessor interface
  • is not packaged with an admin console as in past releases.

History

Tomcat started off as a servlet reference implementation by James Duncan Davidson, a software architect at Sun Microsystems. He later helped make the project open source and played a key role in its donation by Sun to the Apache Software Foundation. The Apache Ant software build automation tool was developed as a side-effect of the creation of Tomcat as an open source project.[3]

Davidson had initially hoped that the project would become open sourced and, since most open source projects had O'Reilly books associated with them featuring an animal on the cover, he wanted to name the project after an animal.[3] He came up with Tomcat since he reasoned the animal represented something that could fend for itself. Although the tomcat was already in use for another O'Reilly title, his wish to see an animal cover eventually came true when O'Reilly published their Tomcat book with a snow leopard on the cover[4].

Tomcat 4.x

  • 4.1.36 - March 24, 2007
  • 4.1.31 - October 11, 2004

Tomcat 5.0.x

  • 5.0.30 - August 30, 2004
  • 5.0.28 - August 28, 2004
  • 5.0.23
  • 5.0.0 - October 9, 2002

Tomcat 5.5.x

  • 5.5.26 - February 2008
  • 5.5.25 - September 2007
  • 5.5.23 - March 2007
  • 5.5.20 - September 1, 2006
  • 5.5.17 - April 28, 2006
  • 5.5.16 - March 16, 2006
  • 5.5.15 - January 21, 2006
  • 5.5.12 - October 9, 2005
  • 5.5.9 - April 11, 2005
  • 5.5.7 - January 30, 2005
  • 5.5.4 - November 10, 2004
  • 5.5.1 - September 7, 2004
  • 5.5.0 - August 31, 2004

Tomcat 6.x

  • 6.0.16 - February 7, 2008
  • 6.0.14 - August 13, 2007
  • 6.0.13 - May 15, 2007
  • 6.0.10 - March 1, 2007
  • 6.0.0 - December 1, 2006

References

  1. ^ "Apache Tomcat 6 Downloads". Apache Software Foundation. Retrieved 2008-03-11.
  2. ^ a b "Apache Tomcat -- Which Version Do I Want?". Apache Software Foundation. Retrieved 2007-01-22. Cite error: The named reference "which" was defined multiple times with different content (see the help page).
  3. ^ a b James Duncan Davidson on the Hivelogic Podcast: http://hivelogic.com/podcast/episodes/james-duncan-davidson
  4. ^ Jason Brittain, Ian F. Darwin. Tomcat: The Definitive Guide. O'Reilly Books. p. 322. ISBN 0-596-00318-8.

See also

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