How to call a class in war file from another class outside the war file?

Question

how to call a class in war file from another class outside the war file. Iam getting problem when accessing that class from war file how to overcome that problem.

You need to provide context, and examples, and be more specific about exactly what it is you are trying to achieve — musefan, Jul 02 '15 at 12:45

score 0 · Answer 1 · edited May 23 '17 at 12:06

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You don't... Unless the War refers to a jar that is in both wars...

A war is a collection of jars, as a sort of wrapper...

So make more jars, and import those in different wars

Try to only create classes in a War that are needed for that webservice only... Not helper classes, since they might be necessary for other applications/services

Jar: collection of Java Classes, property files, so that a collection of classes can be ran from within a computer (Wiki on jar https://en.wikipedia.org/wiki/JAR_(file_format))

java -jar xxx.jar

War: Web ARchive (Wiki on war https://en.wikipedia.org/wiki/WAR_(file_format))

is meant to be put inside a webserver (like Tomcat/Jetty) with has a collection of Jars, and configuration information necessary for link with internet... Like REST, JSP, Html...

Ear: Enterprise ARchive (wiki on ear https://en.wikipedia.org/wiki/EAR_(file_format))

Has a collection of War and Jar, run in Application servers like JBoss and GlassFish

Additional War vs ear see .war vs .ear file

edited May 23 '17 at 12:06

Community

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answered Jul 02 '15 at 12:45

Danielson

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For additional info on what a collection of jars is, [see this](http://www2.wcoil.com/~aux/MB/MBEARLYJARS.JPG) – musefan Jul 02 '15 at 12:48
@musefan OH now i get it. – MCMastery Jul 02 '15 at 12:48
@musefan that's only half the answer... Then what's the war? The closet itself? – Danielson Jul 02 '15 at 12:49
The war is not only a collection of jars, but an archive with special content (`WEB-INF/web.xml`, etc.) – Konstantin Yovkov Jul 02 '15 at 12:49
Right right... My answer is a bit simplistic... I'll fix that... But for the purpose of understanding/knowing wars cannot be imported into war... Except maybe in Ears? – Danielson Jul 02 '15 at 12:50
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@Danielson: I don't know much about closets, but I think [this completes the answer](http://madbean.com/anim/jarwars/) – musefan Jul 02 '15 at 12:53

score 0 · Answer 2 · answered Jul 02 '15 at 12:50

WARs are specifically intended to live in isolation from the other jars/ejbs in the package, they have their own classloader and the wars do not by default reside in the path in any other war, jar, or ejb.

If there is a common functionality this should be moved into a jar that is shared between the artifacts.

How to call a class in war file from another class outside the war file?

2 Answers2