The code at this point is a request handler mapping declaration that uses the @RequestMapping annotation.

The code declared in this block shows how we may create the RestTemplate instance. RestTemplate is the most popular web client for doing request-response communication between services in Spring Framework 4.

This demonstrates the request's construction and execution. Here, using the RestTemplate API, we construct an HTTP request and execute it right after that. Note that the response will be automatically mapped to the Java object and returned as the result of the execution. The type of response body is defined by the second parameter of the getForObject method. Furthermore, the getXxxXxxxxx prefix means that the HTTP method, in that case, is GET.

These are the additional actions that are skipped in the previous example.

This is the execution of another processing stage.