如何在Maven多模块项目中将jar从一个项目打包到另一个项目

Question

I need a best-practice solution for the following problem. I have a maven multi-module project with 3 subprojects:

• client-module (simple java app which packaged as .jar)
• module-1-that-uses-client
• module-2-that-uses-client

module-*-that-uses-client is a bunch of static xml config files with a client-module.jar which is packaged as a .zip file. So, the packaged structure of a module-*-that-uses-client would look like:

• client-module.jar
• config1.xml
• config2.xml
• config3.xml

I wonder how I can implement following build strategies. If I build client-module, then:

1. build client-module
2. copy client-module.jar to all module-*-that-uses-client
3. build all module-*-that-uses-client modules.

If I build any of module-*-that-uses-client, then:

1. build client-module
2. copy client-module.jar to exact module-*-that-uses-client
3. build exact module-*-that-uses-client modules.

Appreciate any help on this problem.

Answer 1

One solution would be the usage of --also-make and --also-make-dependents .

--also-make builds all dependencies of the specified module. Example: mvn --projects module-1-that-uses-client --also-make clean install builds client-module and module-1-that-uses-client in this order.

--also-make-dependents builds the specified module and all other modules with a dependency to the specified module. Example: mvn --projects client-module --also-make-dependents clean install builds first client-module and then both module-*-that-uses-client.

See also the Guide to Working with Multiple Modules .