I have installed the latest STS but it don't have any samples in it.
I want to test petclinic app but i don't know how to find and install it.
I have found this link http://code.google.com/p/simple-spring-memcached/downloads/detail?name=petclinic.zip&can=2&q=
But how can i import it in STS and link with database
If you wish to explore new Spring 3 functionality, there is a PetCare project updated with Spring 3 features. You can check out the project from here
I used maven to build the project and it worked fine for me. I don't think PetClinic is maintained anymore for new releases.