Web container
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A web container (also known as a servlet container;[1] and compare "webcontainer"[2] ) is the component of a web server that interacts with Jakarta Servlets. A web container is responsible for managing the lifecycle of servlets, mapping a URL to a particular servlet and ensuring that the URL requester has the correct access-rights. A web container handles requests to servlets, Jakarta Server Pages (JSP) files, and other types of files that include server-side code. The Web container creates servlet instances, loads and unloads servlets, creates and manages request and response objects, and performs other servlet-management tasks. A web container implements the web component contract of the Jakarta EE architecture. This architecture specifies a runtime environment for additional web components, including security, concurrency, lifecycle management, transaction, deployment, and other services.
List of Servlet containers
[edit ]The following is a list of notable applications which implement the Jakarta Servlet specification from Eclipse Foundation, divided depending on whether they are directly sold or not.
Open source Web containers
[edit ]- Apache Tomcat (formerly Jakarta Tomcat) is an open source web container available under the Apache Software License.
- Apache Tomcat 6 and above are operable as general application container (prior versions were web containers only)
- Apache Geronimo is a full Java EE 6 implementation by Apache Software Foundation.
- Enhydra, from Lutris Technologies.
- GlassFish from Eclipse Foundation (an application server, but includes a web container).
- Jetty, from the Eclipse Foundation. Also supports SPDY and WebSocket protocols.
- Open Liberty, from IBM, is a fully compliant Jakarta EE server
- Virgo from Eclipse Foundation provides modular, OSGi based web containers implemented using embedded Tomcat and Jetty. Virgo is available under the Eclipse Public License.
- WildFly (formerly JBoss Application Server) is a full Java EE implementation by Red Hat, division JBoss.
Commercial Web containers
[edit ]- iPlanet Web Server, from Oracle.
- JBoss Enterprise Application Platform from Red Hat, division JBoss is subscription-based/open-source Jakarta EE-based application server.
- WebLogic Application Server, from Oracle Corporation (formerly developed by BEA Systems).
- Orion Application Server, from IronFlare.
- Resin Pro, from Caucho Technology.
- IBM WebSphere Application Server.
- SAP NetWeaver.
References
[edit ]- ^
Pilgrim, Peter A. (20 September 2013). "The lifecycle of Java Servlets". Java EE 7 Developer Handbook. Professional expertise distilled. Packt Publishing Ltd (published 2013). ISBN 9781849687959 . Retrieved 2016年06月16日.
Java Servlets are governed by a web container (a Servlet container).
- ^
Puthal, B (2009). "J2EE Framework for project development" . Retrieved 2016年06月15日.
The types of components within J2EE environment are [...] JSP or servlet as web components running inside webtainer [...]
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