Where to put java libraries for maven project?
I found that Maven implies a specific directory layout. But I don't understand from here: http://maven.apache.org/guides/introduction/introduction-to-the-standard-directory-layout.html
where the Java libraries needed to compile and run my code should be placed. I think they cannot be placed under "src / main / resources" because resources are something like images or something. They also don't seem to fit under "src / main / java". If I wasn't using maven, I would place the libraries in the root of the project lib
. But I don't think it would be correct for a maven project. Please advise.
UPD: I solved the problem. The thing is, I installed packages for my sources as src.main.myApp instead of main.myApp. This seems to upset maven.
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Maven manages your project dependencies differently in a standard Java project.
You declare the libraries you depend on in the pom.xml project:
eg.
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>your-project</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>your-project-web</name>
<dependencies>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.8.5</version>
</dependency>
</dependencies>
</project>
When you use maven command to create a project i.e. mvn install
, it downloads the dependencies for you and stores them in your local repository.
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In Maven, you don't store libraries in your project. You define dependencies on these libs and they are populated into your local repository. At build time, if you package libraries (say for a war file), they end up in the // WEB -INF / lib target. But in general, the whole idea is not to deal with or manage these libraries, just to manage the dependencies in your pom file and forget everything else.
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