Spring Boot properties that depend on profile-specific properties

Question

I have a Spring Boot application which should connect to different servers in dev and prod, with many services running on those servers. To this point, I have created the configuration like this:

application.properties:

server.url.srv1=${server.url.base}/srv1
server.url.srv2=${server.url.base}/srv2
server.url.srv3=${server.url.base}/srv3

application-dev.properties:

server.url.base=http://192.168.86.17

application-prod.properties:

server.url.base=https://10.11.12.3

Yet when I initialize a bean argument with @Value("${server.url.srv1}") , I get a string of "${server.url.base}/srv1" and not "http://192.168.86.17/srv1" or "https://10.11.12.3/srv1" as expected.

Is this doable at all? It should be if the "${}" references are only resolved once all the config files are loaded, but this doesn't seem to be the case.

I have searched for an answer on both the Spring site , on Google (which pointed me to an otherwise useful Baeldung site ), and here, but found nothing relevant to my particular question.

Answer 1

Placeholders in the application.properties should work. Please refer sample project I have added with your use case and it work as expected: https://github.com/itsprav/spring-profile-properties-using-placeholder

Answer 2

When you run your application you must have to set the specific spring-profile to be set in order to get the specific properties defined previously.

There is many ways to set these profiles.

Setting Profiles in different ways (JVM, Programmatically, Environment Variable...)