How to create and deploy the jar to local repository using maven

Maven: Making a War and Jar at the Same Time
Maven 2 nice automates building WAR files, but it places your compiled classes in WEB-INF/classes instead of making a new jar in /WEB-INF/lib.

If you want your stuff to be compiled as a .jar as well as a .war, you can do this by specifying the jar goal in the command line:

[shell>mvn clean jar install

Note this will make myproject.jar in target/, not in target/myproject/WEB-INF/lib, so you will need to use the Ant plugin to move this stuff around.

But this is not always an option: for deep, modular builds using the reactor, you may want to build your whole thing using one “mvn install”. To do this, do the following:
Specify “war” packaging at the top of your pom.xml.
Then add the following to your build section.

<build>
</plugins>
<!–This plugin will create the jar for the project –>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<id>make-a-jar</id>
<phase>compile</phase>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<!–This plugin will deploy the war in local repository–>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-install-plugin</artifactId>
<executions>
<execution>
<phase>install</phase>
<goals>
<goal>install-file</goal>
</goals>
<configuration>
<packaging>jar</packaging>
<artifactId>${project.artifactId}</artifactId>
<groupId>${project.groupId}</groupId>
<version>${project.version}</version>
<file>
${project.build.directory}/${project.artifactId}-${project.version}.jar
</file>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<build>

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