how to use Spring Boot profiles

Question

i have application.yml,application-dev.ymlandapplication-dev.yml

1. I\'m using the maven command mvn spring-boot:run

Answer 1

You don't need three .yml files for this. You can have a single application.yml file and write profile specific properties in the same where each profile section is separated by 3 hyphen (---)

Next, for selecting the current active profile, you can specify that as well in your application.yml file, like this :

spring:
  profiles:
    active:
    - local

However, this configuration will be overriden if you set an Environment variable, eg : SPRING_PROFILES_ACTIVE = dev

---

Here is a sample file for you requirement:

# include common properties for every profile in this section

server.port: 5000 

spring:
  profiles:
    active:
    - local

---
# profile specific properties

spring:
  profiles: local

  datasource:
    url: jdbc:mysql://localhost:3306/
    username: root
    password: root

---
# profile specific properties

spring:
  profiles: dev

  datasource:
    url: jdbc:mysql://
    username: 
    password: