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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.〔Hadley, p. 1.〕 JAX-RS uses annotations, introduced in Java SE 5, to simplify the development and deployment of web service clients and endpoints. From version 1.1 on, JAX-RS is an official part of Java EE 6. A notable feature of being an official part of Java EE is that no configuration is necessary to start using JAX-RS. For non-Java EE 6 environments a (small) entry in the web.xml deployment descriptor is required. ==Specification== JAX-RS provides some annotations to aid in mapping a resource class (a POJO) as a web resource. The annotations include: * @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 to pull information out of the request. All the @ annotations take a key of some form which is used to look up the value required.* @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).抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Java API for RESTful Web Services」の詳細全文を読む スポンサード リンク
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