Ear and War file difference

I have created and loaded WAR files for Web Applications on my Tomcat 4.1.27 web container.
I have also heard about EAR files and was wondering if I have the correct definition. On one of my Google searches it says: EAR files contain JAR files and WAR files.
I assume an EAR file can contain many JAR and WAR files wrapped into one file (EAR)? Another way of looking at it is if I have for example 3 WAR files, I can put all 3 in an EAR file?

All the archive files used in Java apps are basically ZIP files with the extension changed.
JARs are used to package classes.
WARs are used to package web applications ( the complete directory structure are mandated by J2EE specs ) and may contain JARs
EARs are used to package a J2EE application ( think web app + EJBs in general ) and may consist of many web modules packaged as WARs.
Take a look at this too: http://searchwebservices.techtarget.com/expert/KnowledgebaseAnswer/0,289625,sid26_gci837938,00.html
People on the forum help others voluntarily, it's not their job.
Help them help you.
Learn how to ask questions first: http://faq.javaranch.com/java/HowToAskQuestionsOnJavaRanch
(Yes I know it's on JavaRanch but I think it applies everywhere)
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Similar Messages

  • How to make ear and war file

    hi ,
    can anyone tell me how to make the ear and war file ??/
    Regards,
    Shruti.

    hello shruti
    to make war file enter the following command through command prompt
    jar -cvf filename.war give one space then .(dot)
    bye

  • Explain about JAR,EAR and WAR files

    Explain :what is JAR,EAR and WAR files and how is useful in creating archive files in java with more example?

    Please look up this type of information on your own.
    http://java.sun.com/reference/glossary/index.html

  • EAR and WAR file deployment

    hi,
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    Hi Cheenai,
    EARASSEMBLER is an Orion tool and it is not supported in the
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    package J2EE files:
    http://jakarta.apache.org/ant/

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    There isn't a public API that let's you hook up to the deploy file in JDeveloper.
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  • Description of EAR and WAR files

    Does anybody know or has a link with the description of the files/directory's that are standard in EAR/WAR files.
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    http://java.sun.com/webservices/docs/ea2/tutorial/doc/WebApp3.html
    http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/WCC3.html#64295
    http://jakarta.apache.org/tomcat/tomcat-4.1-doc/appdev/deployment.html
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  • How to deploy ear file with jar file and war file with different names

    Hi,
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    Hi,
    As part of weblogic migration from WL 6.1 sp3 to WL 10, Iam facing some problem.
    Problem:
    I have one ear file(abc.ear) to deploy which contains one jar file(xyz.jar) and one war file(pqr.war).
    In config.xml file of WL 6.1, it was mentioned as :
    <Application Deployed="true" Name="abc" Path="./config/mydomain/applications/abc.ear">
    <EJBComponent Name="xyz" Targets="myserver" URI="xyz.jar"/>
    <WebAppComponent Name="pqr" Targets="myserver" URI="pqr.war"/>
    </Application>.
    The above is working fine.
    But in config.xml file WL10,I cannot mention the same.
    I need to have different application anmes for ear,jar and war.If I deploy as a ear file,the jar and war files are deployed with the same ear file name.
    I tried the following options:
    1) Deploying as a ear file by adding <sub-deployments>
    2) Deploying both war and jar seperately which is not recommended in my application.
    Please provide the content I should place in the config.xml so that everything works fine correctly.
    Any help is appreciated.

  • EAR and WAR

    Hi,
    i need to know about .ear and .war,what exactly do in atg. why we use.
    thanks.

    They are the standard file formats for storing and distributing JEE applications. A War file groups JSPs, servlets and all related files to create web applications, and a Ear file groups all the various War and Jar files required to create an 'enterprise' application.
    Hope this helps.

  • Reading Ear file and inner ear or war file

    Actually My problem is to read and store the all java files and its path from a Ear file or War file. If a archive contains inner archive as well then the process will be the same for inner jar.
    pls give me a sample code so that i can develop my solution
    Thanks

    reply me soon

  • Deploying MBean with ear/jar/war files

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    On 30 Aug 2001 05:17:27 -0800, Audun <[email protected]> wrote:
    >
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              >the
              >>cluster.
              >>
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              >>
              >>Peace,
              >>
              >>--
              >>Cameron Purdy
              >>Tangosol Inc.
              >><< Tangosol Server: How Weblogic applications are customized >>
              >><< Download now from http://www.tangosol.com/download.jsp >>
              >>
              >>
              >><Philippe Lantin plantin_AT_cobaltgroup.com> wrote in message
              >>news:[email protected]...
              >>>
              >>>
              >>> Hi,
              >>>
              >>> our web application is not a war when we use a single server. We simply
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              >>we
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              >>war
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              >>> includes all files and directories. This creates a huge war file,
              >and
              >>is
              >>obviously
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              >>>
              >>> Creating a war file manually doesn't help, since jar doesn't support
              >>symbolic
              >>> links.
              >>>
              >>> Thanks,
              >>>
              >>> Philippe Lantin
              >>>
              >>>
              >>> "Cameron Purdy" <[email protected]> wrote:
              >>> >I don't understand at which point you are running into a problem.
              >>> >
              >>> >> we use symbolic links in our web application to a large shared
              >storage
              >>> >device.
              >>> >
              >>> >That is not uncommon, for example to use a Sun storage box or EMC
              >>with
              >>> >some
              >>> >fault tolerant characteristics to host the application images etc.
              >>> >
              >>> >> This works when running a single server, when the application is
              >>not
              >>> >a war
              >>> >file.
              >>> >
              >>> >Do you mean when it is "exploded"? Does it work with a single server
              >>> >when
              >>> >the app is a war file?
              >>> >
              >>> >> When we cluster the application, the admin server creates a war
              >>file,
              >>> >blindly
              >>> >> follows the symbolic links and tries to include all files in the
              >>shared
              >>> >storage
              >>> >> device.
              >>> >
              >>> >This is the part that I don't follow. Are you using 6.1sp1? What
              >are
              >>> >the
              >>> >steps that you are taking with the admin server?
              >>> >
              >>> >Peace,
              >>> >
              >>> >--
              >>> >Cameron Purdy
              >>> >Tangosol Inc.
              >>> ><< Tangosol Server: How Weblogic applications are customized >>
              >>> ><< Download now from http://www.tangosol.com/download.jsp >>
              >>> >
              >>> >
              >>> ><Philippe Lantin plantin_AT_cobaltgroup.com> wrote in message
              >>> >news:[email protected]...
              >>> >>
              >>> >>
              >>> >> Hello,
              >>> >>
              >>> >> we use symbolic links in our web application to a large shared
              >storage
              >>> >device.
              >>> >> This works when running a single server, when the application is
              >>not
              >>> >a war
              >>> >file.
              >>> >> When we cluster the application, the admin server creates a war
              >>file,
              >>> >blindly
              >>> >> follows the symbolic links and tries to include all files in the
              >>shared
              >>> >storage
              >>> >> device. Bad!
              >>> >>
              >>> >> Is there a work-around to this problem in a clustered configuration?
              >>> >>
              >>> >> -Thanks-
              >>> >>
              >>> >>
              >>> >>
              >>> >
              >>> >
              >>>
              >>
              >>
              >
              

  • OC4J and war files

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