How to handle multiple subdomains separately in a Spring MVC app?

Question

Supposing I have two subdomains:

Products:

products.example.com

Users:

users.example.com

How do I set up a single Spring MVC app to handle each of these domains differently (in my case I want to use a different database depending on which subdomain the user arrives from)?

Answer 1

If the same applications is to be used with the multiple subdomains, then you can make an interceptor (implement HandlerInterceptor) that is invoked for every request and store the subdomain in a ThreadLocal. Then, based on that value, you can differentiate your actions.