Dynamic Spring Configuration Files, Project Packaging, and Deployment Guide

Dynamic Configuration Files

Spring allows specifying active profiles at startup to switch between environment‑specific configuration files such as application.yml, application-druid.yml, application-prod.yml, and application-druid-prod.yml. By copying the base files and renaming them, developers can avoid manual edits and reduce configuration errors.

Startup Methods

Jar launch with profile parameters: java -jar xxx.jar --spring.profiles.active=prod,druid-prod. Multiple profiles are separated by commas.

IDEA run configuration: edit the Spring Boot run configuration, set Active profiles to the desired profile suffixes (e.g., prod, druid-prod), and apply.

Project Packaging

The project consists of modules my-project-server, my-project-dependencies, and my-project-common. First install the dependency modules locally, then package the server module.

IDEA packaging: use the Maven lifecycle (clean, install, package) via the Maven tool window.

Maven command packaging: create a package.bat script that runs mvn install for the dependency modules and mvn clean package -Dmaven.test.skip=true for the server module.

Deployment

After building, the JAR appears in the target directory. Install Java (e.g., JDK 8) on the target server, set JAVA_HOME, JRE_HOME, CLASSPATH, and PATH in /etc/environment and /etc/profile, then source the profile.

Upload the JAR to a server directory (e.g., /usr/local/apps/my-project) and start it using one of the following commands:

Foreground: java -jar my-project-server-1.0.0-SNAPSHOT.jar Foreground with background: java -jar my-project-server-1.0.0-SNAPSHOT.jar & Background (recommended): nohup java -jar my-project-server-1.0.0-SNAPSHOT.jar & Access the running service via http://IP:8899/sys-user/get/all to verify the API.

Additional Notes

The article also contains promotional messages and links to related resources, but the core technical content focuses on Spring Boot backend configuration, packaging, and deployment.