What's the difference between @Component, @Repository & @Service annotations in Spring?

Question

Can @Component, @Repository and @Service annotations be used interchangeably in Spring or do they provide any particular functionality besides acting as a notation device?

Answer 1

Use of @Service and @Repository annotations are important from database connection perspective.

1. Use @Service for all your web service type of DB connections
2. Use @Repository for all your stored proc DB connections

If you do not use the proper annotations, you may face commit exceptions overridden by rollback transactions. You will see exceptions during stress load test that is related to roll back JDBC transactions.