Spring Boot Package Slimming method

Background

With the popularity of spring boot, more and more to choose to use Spring boot to send web apps, unlike traditional Web applications that require a war package to publish an app, a spring boot app can package an entire project into an executable jar, while also guiding The jar is becoming bigger and larger. For the current high-speed iteration of the project, uploading such a large jar to the sender is a very painful thing. This chapter describes how to extract small jars that vary in the project to the outside.

Specific steps:

1: Usually we use Spring-boot-maven-plugin to package, by reading the document discovery can be configured so that the plug-in is packaged to ignore the specific dependencies, the document in Spring-boot-maven-plugin

2: First back up the original dependency: You can use MVN dependency:copy-dependencies first to export dependent.

3: Copy the jar with small changes to the external file Lib folder (corresponding to the configuration in the Pom file)

4: Modify the Pom file as follows:

　　

 <build><plugins><plugin ><groupid>org.springframework.boot</groupid><artifactid>spring-boot-maven-plugin</                                    Artifactid><configuration> <layout>ZIP</layout>                                         <!--Remove the constant dependency in the production environment-<excludeGroupIds>                                         Org.springframework.boot, Org.springframework,                                   Org.springframework.data, org.apache.tomcat.embed </excludeGroupIds> </configuration></plugin>& lt;/plugins></build>  

Note: layout must be in ZIP, Excludegroupids, and will need to be in the external jar, according to the situation of their own project configuration

5: Project startup put the jar of the project and the Lib you just created in the sibling directory (not required).

6: Startup Project: Java-dloader.path= "lib/"-jar Xx.jar

Well, that's the end of the basics, if you have any questions, please.

Spring Boot Package Slimming method