How to apply different properties with different code

I am trying to set connecting to mongoDB with different profiles.

I have application.yml, application-dev.yml, application-op.yml, application-qa.yml, and application-st.yml. And I want to apply all the properties differently.

For example, I want to apply my MongoDBsource.java class to application.yml

settings.applyConnectionString(
        new ConnectionString(String.format("mongodb://%s:%d", host, port)));

But with all the other properties, I want to apply with this code.

settings.applyConnectionString(
        new ConnectionString(String.format("mongodb://%s:%d/?replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false", host, port)));

How can I apply this?

I tried @Profile("dev") annotation.

I'd just use property substitutions in the yaml files to achieve this. You could have a mongodb.urlSuffix which defaults to empty string

application.yaml

mongodb:
  host: localhost
  port: 5000
  urlSuffix: ''
  url: mongodb://${mongodb.host}:${mongodb.port}${mongodb.urlSuffix}

application-dev.yaml

mongodb:
  urlSuffix: ?replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false

application-op.yaml

mongodb:
  urlSuffix: ?replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false

Then

@Component
public class MyFantasticService {
   private final MongoSettings settings;

   public MyFantasticService(@Value("${mongodb.url}") String mongoUrl) {
      settings = new MongoSettings();
      settings.applyConnectionString(new ConnectionString(mongoUrl)));
      ...
   }
}