如何在 pom.xml 中将 maven jar 更新为战争

Question

I'm currently studying maven and I just made "maven-archetype-quickstart" and set the compile properties to 1.8

Then I wanted to change the jar to war so I changed packaging to war.

I also checked Build, Execution, Deployment -> Build Tools -> Maven -> Import Maven projects automatically

and I've tried Maven -> Reimport All Maven Projects but the projects structure doesn't change. How can I update the maven package 'jar' to 'war'?

Answer 1

The project structure in IntelliJ reflects the stucture of folders/files in the filesystem. That shouldn't change. More precisely, both jar and war packaged modules are allowed to have src/main/java , src/main/resources , src/test/java , src/test/resources

This is a standard maven layout.

However, in addition WAR projects can have src/main/webapp folder where you can place JSP files, web.xml descriptor (inside inner WEB-INF folder) and so on.

Since you didn't create those folder, visually you won't be able to see the difference.

If you have an ultimate edition of intelliJ IDE, you can configure tomcat plugin to run the WAR on pre-installed tomcat server (or use other alternatives for running WARs).

In order to learn the impact of packaging, you can run mvn package from the command line and examine the created artifact in the target folder