Most of us use Spring Boot to rapidly start the project by using its starter packages, one such package we use to connect persistent layer is spring boot data starter, and in most scenario just by adding the dependency is sufficient, but when we have multiple data source like MySQL,

There are multiple methods to work on native queries in spring boot,like using Query annotation @ResultSet mapping annotation to map non entity Dtos, as query complexity increases code readability also decreases, i have preferred to use simple Solution and to map result to Dto for native query, for better

Overview: * Creating custom annotation * Creating component in spring boot * Creation a configuration and middleware in spring boot * Basic of Aspect and usage in spring boot What is Aspect In Spring Boot ? Aspects are cross cutting concerns like logging,security in different layers for the ease of code maintenance . Key Dependency