Create an interface in the browser

Offering extra earnings. I created a project on the Spring Framework that outputs domain information from the MySQL database. Outputs information using the cURL command in the terminal. So now we need to create a new spring butovo project, where an interface will be created and now we will need to display information about the domain through this interface, in general, two projects need to be launched through the tomcat, one of mine is already ready, and the second one is where the interface is. And make a connection between them through Api Client. So he can take information from an old project and bring it to a new interface.