To be able to access two databases in SpringBoot you must define two data sources. In my case I had one database for identity details of users, like username, name, email, address etc. and second database for everything else.
You have to define one @Configuration class for each database and each class will wired its own datasource to services (like JpaRepository or CrudRepository) to defined packages.
This blog is also available in .onion domain. Both blogs have different databases, DB users and passwords, different WordPress configurations, and as a result, they have different data in DB column.
After publishing a new post here, I do not want to manually copy posts from here to there and I want images from b.agilob.net to be available in .onion to avoid any clearnet connections. To do so, the content of each post must be scanned for ‘/‘ and this string must be replaced with ‘http://agiloblulimjeqlq.onion/‘.