Brief view in JAX-RS (Java API for RESTful Web Services)

What is JAX-RS

Java API for RESTful Web Services (JAX-RS) is a Java programming language API that provides support in creating web services according to the Representational State Transfer (REST) architectural pattern.

JAX-RS is an official part of Java EE 6.

Annotations in JAX-RS 

JAX-RS uses these annotations:

• @Path specifies the relative path for a resource class or method.
• @GET, @PUT, @POST, @DELETE and @HEAD specify the HTTP request type of a resource.
• @Produces specifies the response Internet media types (used for content negotiation).
• @Consumes specifies the accepted request Internet media types.

 In addition, it provides further annotations to method parameters:

• @PathParam binds the method parameter to a path segment.
• @QueryParam binds the method parameter to the value of an HTTP query parameter.
• @MatrixParam binds the method parameter to the value of an HTTP matrix parameter.
• @HeaderParam binds the method parameter to an HTTP header value.
• @CookieParam binds the method parameter to a cookie value.
• @FormParam binds the method parameter to a form value.
• @DefaultValue specifies a default value for the above bindings when the key is not found.
• @Context returns the entire context of the object (for example @Context HttpServletRequest request).

 Source: wikipedia