Java Servlet - History

History

The complete Servlet specification was created by Sun Microsystems, with version 1.0 finalized in June 1997. Starting with version 2.3, the Servlet specification was developed under the Java Community Process. JSR 53 defined both the Servlet 2.3 and JavaServer Page 1.2 specifications. JSR 154 specifies the Servlet 2.4 and 2.5 specifications. As of March 26, 2010, the current version of the Servlet specification is 3.0.

In his blog on java.net, Sun veteran and GlassFish lead Jim Driscoll details the history of Servlet technology. James Gosling first thought of Servlets in the early days of Java, but the concept did not become a product until Sun shipped the Java Web Server product. This was before what is now the Java Platform, Enterprise Edition was made into a specification.

Servlet API history
Servlet API version Released Platform Important Changes
Servlet 3.0 December 2009 JavaEE 6, JavaSE 6 Pluggability, Ease of development, Async Servlet, Security, File Uploading
Servlet 2.5 September 2005 JavaEE 5, JavaSE 5 Requires JavaSE 5, supports annotation
Servlet 2.4 November 2003 J2EE 1.4, J2SE 1.3 web.xml uses XML Schema
Servlet 2.3 August 2001 J2EE 1.3, J2SE 1.2 Addition of Filter
Servlet 2.2 August 1999 J2EE 1.2, J2SE 1.2 Becomes part of J2EE, introduced independent web applications in .war files
Servlet 2.1 November 1998 Unspecified First official specification, added RequestDispatcher, ServletContext
Servlet 2.0 JDK 1.1 Part of Java Servlet Development Kit 2.0
Servlet 1.0 June 1997

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