Java Reference
In-Depth Information
Accessing REST resources
As we said, REST resources can be accessed using actions that map an equivalent HTTP
request. In order to simplify the development of REST applications, you can use simple an-
notations to map your actions; for example, in order to retrieve some data from your applic-
ation, you can use something similar to the following:
public class UserResource {
public String handleGETRequest() { . . .}
public String handlePOSTRequest(String payload) { . . . }
The first annotation, @Path , in our example is used to specify the URI that is assigned to
this web service. Subsequent methods have their specific @Path annotation so that you
can provide a different response according to the URI requested.
Then, we have an @GET annotation that maps an HTTP GET request and an @POST an-
notation that handles an HTTP POST request. So, in this example, if we were to request for
a web application bound to the example web context, an HTTP GET request to the URL
http://host/example/users would trigger the handleGETRequest method;
on the other hand, an HTTP POST request to the same URL would conversely invoke the
handlePOSTRequest method.
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