CODEWITHSUNDEEP
javamaven-2
opai
opai

Reputation: 253

Main class execution maven or java command

I have a simple java main class and can execute it using the below command on server java com.....MainClass

Now we are trying to use Maven in our application.

I am seeing on web that the maven command to execute java program is mvn exec:java -Dexec.mainClass=com......MainClass

Can I still use regular java command or do I have to use the maven command exec:java?

It's not clear to me when to use the maven exec:java command.

Please help me understand when to use regular java command and when to use the maven exec:java command. when I use Maven can I still execute program using regular java command.

Upvotes: 0

Views: 78

Answers (2)

salah djebbi
salah djebbi

Reputation: 82

maven is mainly a dependency mangement and a build tool.

u can still use java command to run your main class from the jar generated by maven under the target folder of your project.

java -cp "yourProject/target/folder-containing-dependenc-jars-if-exist/*:yourProject/target/thejar.jar" package.mainClass

ps: use the ":" separator on linux system , if you are under windows use ";"

Upvotes: 1

haba713
haba713

Reputation: 2687

Maven

According to https://maven.apache.org/what-is-maven.html Maven's objectives are

  • Making the build process easy
  • Providing a uniform build system
  • Providing quality project information
  • Providing guidelines for best practices development
  • Allowing transparent migration to new features

So, you should use Maven for building your project... like building a JAR package with main class.

Running JAR packaged main class

See this answer or this Oracle's tutorial for running a JAR packaged Java class.

You can also use Maven for running the main class but you should not make your production environment depended on Maven.

Upvotes: 1

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