Detailed explanation of building java9 service instance using maven

order

This paper mainly studies how to build java9 multi module and service instances in Maven

maven

The whole project is the same as the traditional Maven multi module project structure. A module of java9 corresponds to a module of Maven project. The following is the POM file in the root directory:

A maven compiler plugin is managed here, and the release is configured as 9. Because java9 supports multi release and can support multiple Java versions at the same time, it is compiled as java9 version here.

service-sort

This is the service interface module

Here, we also declare uses sortservice, which means that it needs to use serviceloader in this module to load the service instance

While declaring the interface, static methods are also added to load service instances.

service-sort-bubble

maven

The dependency on the API package is added here

module-info. java

This declares that BubbleSort provides the implementation of sortservice

BubbleSort

service-sort-merge

maven

module-info. java

This declares that mergesort is the implementation of sortservice interface

MergeSort

consumer

maven

Note that there are no implementation class dependencies added here

module-info. java

Main

Compilation and operation

compile

This is executed under the root directory

Using the bubble