In earlier spring boot, the configuration for setting up SSL security had to be done on application.properties by mentioning
server.port=8443
security.require-ssl=true
server.ssl.key-store=classpath:shq.jks
server.ssl.key-store-password=******
server.ssl.key-password=******
Would the same work on spring boot 2.0.3
If not what has to be changed.
The answer for your question is YES.
It is same for Spring boot 2.0.x versions also.
you can refer below to cross verify the same.
Enable HTTPS with self-signed certificate in Spring Boot 2.0