Web container: Difference between revisions

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{{Short description|Component of Java web server}}

{{referencedmore citations needed|date=October 2015}}

'''Web container''' (also known as a Servlet container) is the component of a [[web server]] that interacts with [[Java (programming language)|Java]] [[servlet]]s. 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.<ref>{{cite web|last1=Bricker|first1=Sarah|title=MAKE TECHNICAL TALK FRIENDLY & DIGESTIBLE|url=http://www.insiteadvice.com/make-technical-talk-friendly-digestible/|accessdate=20 October 2015|date=16 October 2015}}</ref>

A '''web container''' (also known as a servlet container;<ref>

{{cite book

A web container handles requests to [[Java servlet|servlet]]s, [[JavaServer 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.

| author = Pilgrim, Peter A.

| chapter = The lifecycle of Java Servlets

A web container implements the web component contract of the [[Java Platform, Enterprise Edition|Java EE]] architecture, specifying a [[runtime environment]] for web components that includes [[Computer security|security]], [[concurrency (computer science)|concurrency]], [[Java Servlet#Life cycle of a servlet|lifecycle management]], [[Transaction processing|transaction]], deployment, and other services.

| title = Java EE 7 Developer Handbook

| url = https://books.google.com/books?id=rY_1AAAAQBAJ

| series = Professional expertise distilled

| date = 20 September 2013

| publisher = Packt Publishing Ltd

| publication-date = 2013

| isbn = 9781849687959

| access-date = 2016-06-16

| quote = Java Servlets are governed by a web container (a Servlet container).

}}

</ref>

and compare "webcontainer"<ref>

{{cite web

| url = http://www.slideshare.net/bputhal/j2-eee-sides

| title = J2EE Framework for project development

| author = Puthal, B

| year = 2009

| access-date = 2016-06-15

| quote = The types of components within J2EE environment are [...] JSP or servlet as web components running inside webtainer [...]

}}

</ref>) is the component of a [[web server]] that interacts with [[Jakarta Servlet]]s. 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 [[Jakarta Servlet|servlet]]s, [[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 [[computer security|security]], [[concurrency (computer science)|concurrency]], [[Jakarta Servlet#Life cycle of a servlet|lifecycle management]], [[transaction processing|transaction]], deployment, and other services.

==List of Servlet containers==

The following is a list of notable applications which implement the [[JavaJakarta Servlet]] specification from [[SunEclipse MicrosystemsFoundation]], divided depending on whether they are directly sold or not.

===Open source Web containers===

* [[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 Server|Enhydra]], from [[Lutris Technologies]].

* [[GlassFish]] from [[OracleEclipse Corporation|OracleFoundation]] (an [[Applicationapplication Serverserver]], but includes a web container).

* [[Jetty (web server)|Jetty]], from the [[Eclipse Foundation]]. Also supports [[SPDY]] and [[WebSocket]] protocols.

* [[JBoss Application Server]] (now WildFly) is a full [[Java EE]] implementation by [[Red Hat|Red Hat Inc.]], division JBoss.

* Open Liberty, from IBM, is a fully compliant Jakarta EE server

* [[Jetty (web server)|Jetty]], from the [[Eclipse Foundation]]. Also supports [[SPDY]] and [[WebSocket]] protocols.

* [[Jaminid]] contains a higher abstraction than servlets.

* [[Winstone Servlet Container|Winstone]] supports specification v2.5 as of 0.9, has a focus on minimal configuration and the ability to strip the container down to only what you need.

* [[Tiny Java Web Server]] (TJWS) 2.5 [http://sourceforge.net/projects/tjws], small footprint, modular design.

* [[Virgo (software)|Virgo]] from [[Eclipse Foundation]] provides modular, [[OSGi]] based web containers implemented using embedded [[Apache Tomcat|Tomcat]] and [[Jetty (web server)|Jetty]]. Virgo is available under the [[Eclipse Public License]].

* [[JBoss Application ServerWildFly]] (nowformerly WildFlyJBoss Application Server) is a full [[Java EE]] implementation by [[Red Hat|Red Hat Inc.]], division [[JBoss (company)|JBoss]].

===Commercial Web containers===

* [[Oracle iPlanet Web Server|iPlanet Web Server]], from [[Oracle Corporation|Oracle]].

* [[JBoss Enterprise Application Platform]] from [[Red Hat|Red Hat Inc.]], division [[JBoss (company)|JBoss]] is [[Subscription|subscription-based]]/[[Open-source software|open-source]] [[JavaJakarta EE]]-based [[application server]].

* [[JRun]], from [[Adobe Systems]] (formerly developed by Allaire Corporation).

* [[WebLogic Application Server]], from [[Oracle Corporation]] (formerly developed by BEA Systems).

* [[Orion Application Server]], from [[IronFlare AB|IronFlare]].

* [[Resin Server|Resin Pro,]], from Caucho Technology.

* [[ServletExec]], from [[New Atlanta|New Atlanta Communications]].

* [[IBM WebSphere Application Server]].

* [[SAP NetWeaver]].

* [[SpringSource tc Server|tc Server]], from [[SpringSource|SpringSource Inc.]]

==NotesReferences==

{{Reflist}}

{{Web interfaces}}

{{Portal bar|JavaComputer programming}}

{{DEFAULTSORT:Web Container}}

[[Category:Computer networking]]

[[Category:Java platform]]

[[Category:Lists of software]]

[[Category:Software architecture]]

[[Category:Web applications]]