使用Jersey创建RESTful风格的WebService

发布时间：2020-12-17 00:54:38 所属栏目：安全来源：网络整理

导读：什么是RESTful架构每一个URI代表一种资源客户端和服务端之间传递这种资源的某种表现层(“资源”具体呈现出来的形式叫做它的“表现层”。) 对于资源的具体操作，由HTTP动词表示。客户端通过HTTP动词(GET,POST,PUT,DELETE)对服务端资源进行操作，实现表现层

什么是RESTful架构

JAX-RS annotations

Annotation	Description
@PATH(your_path)	Sets the path to base URL + /your_path. The base URL is based on your application name,the servlet and the URL pattern from the web.xml configuration file.
@POST	Indicates that the following method will answer to an HTTP POST request.
@GET	Indicates that the following method will answer to an HTTP GET request.
@PUT	Indicates that the following method will answer to an HTTP PUT request.
@DELETE	Indicates that the following method will answer to an HTTP DELETE request.
@Produces(MediaType.TEXT_PLAIN[,more-types])	@Produces defines which MIME type is delivered by a method annotated with @GET. In the example text (“text/plain”) is produced. Other examples would be “application/xml” or “application/json”.
@Consumes(type[,more-types])	@Consumes defines which MIME type is consumed by this method.
@PathParam	Used to inject values from the URL into a method parameter. This way you inject,for example,the ID of a resource into the method to get the correct object.

典型的设计误区

URI包含动词。“资源”是一种实体，应该是名词。URI不应该有动词，动词放在HTTP协议中。
URI中加入版本号。
例如
http://www.example.com/app/1.0/foo
http://www.example.com/app/1.1/foo
http://www.example.com/app/2.0/foo 不同的版本可以理解为同一种资源的不同表现形式，所以应该用同一个URI，版本号可以在HTTP请求头信息中的Accept字段中区分： Accept: vnd.example-com.foo+json; version=1.0 Accept: vnd.example-com.foo+json; version=1.1 Accept: vnd.example-com.foo+json; version=2.0

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!