Creating a jar from a maven project in intellij

Question

I created a new maven project in IntelliJ and set packaging to jar but when I build it, the target folder does not contain a jar. I'm sure its something really dumb on my part but there are just so many different things i'm reading on different websites and I just feel better asking. enter image description here

when you built it, did you click `Maven Projects > Life Cycle > package` ? — ZhongYu, May 13 '15 at 03:22
@ZhongYu no, you see, this question is about using IntelliJ IDEA, so when he ***builds*** it, he does not click anything maven, because he is using IntelliJ IDEA, and he is building with IntelliJ IDEA. — Mike Nakis, May 17 '20 at 16:03
Goto Maven Projects > Life Cycle > package then right click and from the second group choose when you want your package created. After that, whenever you Build it will remember that and automatically create your jar file. — Dan M, May 30 '20 at 16:00

score 45 · Answer 1 · edited Aug 13 '18 at 02:29

45

You should build you project using IDEA's Maven Projects view.

View -> Tool Windows -> Maven Projects

or open it from left bottom corner menu:

menu

And then build your project with maven goals - i.e. package: maven project

If packaging is set to jar in pom.xml, you will get a jar in target dir.

edited Aug 13 '18 at 02:29

Amr Lotfy

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answered May 13 '15 at 09:15

arghtype

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I did that and it did create the jar just like I wanted to. The only thing is when I added it to the project structure of another project, I couldn't access the class from this library. I just added a SimpleUser class to test it but that wasn't showing up in my other project. – Joe May 13 '15 at 20:34

score 17 · Answer 2 · answered Feb 11 '19 at 16:24

17

Go to the maven project and double click clean and package.

For just do following:

answered Feb 11 '19 at 16:24

ankit

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this is the easiest way thanks a lot – Supun Sandaruwan Oct 14 '21 at 17:52
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When I tried to build with the artifacts, the JAR file is not worked correctly, but this is the easiest way and the JAR application is running without any issues. Thank You! – Lakshan Chathuranga Oct 22 '21 at 09:02

score 15 · Answer 3 · answered May 13 '15 at 04:28

You need the maven jar plugin in order to create a jar

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-jar-plugin</artifactId>
    <configuration>
        <archive>
            <manifest>
                <addClasspath>true</addClasspath>
                <classpathPrefix>lib/</classpathPrefix>
                <mainClass>add your main class</mainClass>
            </manifest>
        </archive>
    </configuration>
</plugin>

https://maven.apache.org/plugins/maven-jar-plugin/

I think your comment applies only to an executable jar. The OP does not mention executable. — kiwiron, May 13 '15 at 08:34

Alec · Answer 4 · 2021-02-12T21:11:53.800

5

You need to have "jar" in packaging section of your pom.xml. You can add this before dependencies section:

<packaging>jar</packaging>

Then go to View -> Tool Windows -> Maven and in Maven window expand everything and double click on "package" in Lifecycle section.

edited Feb 12 '21 at 21:11

answered Jan 26 '20 at 07:52

Alec

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remove the asterisks from this answer – djg Feb 11 '21 at 20:29

score 1 · Answer 5 · answered May 13 '15 at 08:32

Assuming that the screen-shot shows the complete pom file, you are missing the entries that define the artifact. Try adding something like this following immediately after the tag:

  <modelVersion>4.0.0</modelVersion>
  <groupId>com.mycompany.example</groupId>
  <artifactId>stackoverflow-question</artifactId>
  <version>0.0.1-SNAPSHOT</version>

You should end up with stackoverflow-question-0.0.1-SNAPSHOT.jar in your /target directory. You may need to refresh the directory to see it (You certainly have to in Eclipse)

score 0 · Answer 6 · answered Apr 24 '22 at 18:46

0

You can use iu, this is my way

answered Apr 24 '22 at 18:46

Dave Rincon

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Creating a jar from a maven project in intellij

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