How To Install a Jar File In The Maven Local Repository

When developing some maven projects, we may need to use some third-party jar libraries. But because of some reasons, they are not available in Maven repository. Therefore we can not add them into pom.xml file like other libraries.

There are two ways to do this:

Let’s assume you want to use json-1.0.0.jar library for the project.

1. Add local dependencies directly

You will need to put the jar dependency file in your WEB-INF/lib/ directory. Then use it in pom.xml file like this:

<dependency>
    <groupId>thirdparty.com</groupId>
    <artifactId>json</artifactId>
    <version>1.0.0</version>
    <scope>system</scope>
    <systemPath>${basedir}/src/main/webapp/WEB-INF/lib/json-1.0.0.jar</systemPath>
</dependency>

2. Use install:install-file

Run the below command:

mvn install:install-file -Dfile=json-1.0.0.jar -DgroupId=thirdparty.com -DartifactId=json -Dversion=1.0.0 -Dpackaging=jar

In the command, you will need to change the following information based on your jar file: -Dfile, DgroupId, -DarticfacId, and -Dversion.

Now you use it as a dependency in pom.xml file:

<dependency>
    <groupId>thirdparty.com</groupId>
    <artifactId>json</artifactId>
    <version>1.0.0</version>
</dependency>