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Monday, March 18, 2013
How to Make Jar, War and Ear Files in Easy Steps
In software development programming are written in component
level and components are integrate at final stage of development. This Stage
requires packaging for various components (files) into one package. I am going
to discuss three packaging format for java programming language but before makes
your hand dirty let me introduce all three formats:
Jar
File-
JAR (Java
ARchive) is an archive file format typically used to aggregate
many Java class files and associated metadata and
resources (text, images and so on) into one file to distribute application software or libraries on the Java
platform
War
File:
A WAR file (or Web application ARchive)
is a JAR file used to distribute a collection of JavaServer
Pages, Java Servlets, Java classes, XML files, tag libraries,
static Web pages (HTML
and related files) and other resources that together constitute a Web
application.
Ear
File:
EAR (Enterprise
ARchive) is a file format used by Java EE for
packaging one or more modules into a single archive so that the deployment of
the various modules onto an application server happens simultaneously and
coherently. It also contains XML files called deployment descriptors which describe how to
deploy the modules.
Process
of making Jar, war and Ear file:- Suppose you have a
folder named “Ripe” in “F” drive of your computer in which you have text,
source code(.java), generated code(.class) files and you want to make
War/Jar/Ear of all data or selected file in that particular folder. Now follow
these steps:-
1-Open your computer command prompt (cmd) and type f: to change drive then give path inside
your folder by type this cd Ripe and
hit enter. This will set your cmd
path to your folder in which you want to create your file. See the screen shot
below:
2-Assume that your file name is “tech” which you are
going to make.
3- Now, For Jar file type jar cvf tech.jar *.* hit enter and you would find war file in your Ripe folder. See the screen shot below:
4- For War File, Type- jar cvf tech.war *.* hit enter and done. See the screen shot below.
5-For Ear File, Type- jar cvf tech.ear *.* hit enter. See the screen shot.
You can choose particular file format from your
folder by enter file format like *.java or *.class or *.txt instead of *.* in
command prompt .*.* means all files
inside the folder.
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