Building a REST Java web service API using the Spring framework

Building a REST-ful Java web service API has never been more restful than now, using version 3+ of the Spring framework.

 First some annotated Java code:

@Component
@Controller()
public class SampleController {

     @Autowired
     private SampleService service;

     @RequestMapping(value = "/samples/{reference}", method = {RequestMethod.GET})
     @ResponseBody
     public Sample getSampleByReference(@PathVariable String reference) {
          return service.getSampleByReference(reference);
      }
 }

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