How to use mvn install command

This guide is just a quick overview of what Maven can do for you and how to work around its most common pitfalls. If you have any comments or feedback, or want to suggest a another common Maven question, simply leave a comment below. I'll send you an update when I publish new guides. Absolutely no spam, ever. Unsubscribe anytime.

I'm MarcoBehler and I share everything I know about making awesome software through my guides , screencasts , talks and courses. Follow me on Twitter to find out what I'm currently working on. Quick Links What does mvn clean install do?

What does mvn clean install do? The short answer. Maven: Crash-Course Maven is one of the most popular build tools in the Java universe others being Gradle or old-school Ant.

Now what exactly does a build tool do? Maven does three things rather well:. We are defining a project called 'my-project' With a version number of 1. The Confident Maven Professional If you want to easily get a deep and practical understanding of working with Maven professionally: I have written a course for you. Interested in trying out the full first module? Learn More. How do you install Maven? A look at the Maven build lifecycle: phases Now what really happens when you execute a mvn clean install in your project?

Where does Maven store 3rd party libraries? What is the difference between mvn clean package and mvn clean install?

If you followed the guide, this should be pretty much clear by now. So, the same result for both commands. Why do I need to call clean at all? Here we have discussed basic instructions and different steps to install maven. You may also look at the following article to learn more —.

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By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy. How to Install Maven? Note: Here, the variable value is the path where you unzipped your downloaded Maven files, as shown in the image below. Popular Course in this category. Unlike the first command executed archetype:generate , the second is simply a single word - package.

Rather than a goal , this is a phase. A phase is a step in the build lifecycle , which is an ordered sequence of phases. When a phase is given, Maven executes every phase in the sequence up to and including the one defined.

For example, if you execute the compile phase, the phases that actually get executed are:. By default your version of Maven might use an old version of the maven-compiler-plugin that is not compatible with Java 9 or later versions. To target Java 9 or later, you should at least use version 3. In the following example, we have configured our Maven project to use version 3. To learn more about javac 's --release option, see JEP Although hardly a comprehensive list, these are the most common default lifecycle phases executed.

Phases are actually mapped to underlying goals. The specific goals executed per phase is dependant upon the packaging type of the project. For example, package executes jar:jar if the project type is a JAR, and war:war if the project type is - you guessed it - a WAR. This command will clean the project, copy dependencies, and package the project executing all phases up to package , of course.

This phase generates a site based upon information on the project's pom. We hope this quick overview has piqued your interest in the versatility of Maven. Note that this is a very truncated quick-start guide. Now you are ready for more comprehensive details concerning the actions you have just performed.