【Developer Log】javax ws rs实现Restful

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如何使用RestFul

下表来自wiki说得很清楚，GET一般用于查询，POST一般用于创建，PUT用于update（如无则创建），DELETE用户删除。POST和PUT的不同在于，调用两次POST则创建两个资源，而调用两次PUT，仍关联一个资源。

                             

Uniform Resource Locator (URL)	GET	POST	PUT	DELETE
Collection, such as http://api.example.com/resources/	List the URIs and perhaps other details of the collection’s members.	Replace the entire collection with another collection.	Create a new entry in the collection. The new entry’s URI is assigned automatically and is usually returned by the operation.	Delete the entire collection.
Element, such as http://api.example.com/resources/item17	Retrieve a representation of the addressed member of the collection, expressed in an appropriate Internet media type	Replace the addressed member of the collection, or if it does not exist, create it.	Not generally used. Treat the addressed member as a collection in its own right and create a new entry in it.	Delete the addressed member of the collection.

Java中使用RestFul

RestFul是个web接口，因此在J2EE中使用。Spring含有对RestFul的支持，但此处，我们只讨论普通情况下如何实现Restful。

pom：关联的jar包

 <!-- 导入Bundles，可以替代Part1部分  <dependency>   <groupId>org.glassfish.jersey.bundles</groupId>   <artifactId>jaxrs-ri</artifactId>   <version>2.23.2</version> </dependency>  --> <!-- Part 1 --> <dependency>   <groupId>org.glassfish.jersey.core</groupId>   <artifactId>jersey-server</artifactId>   <version>2.23.2</version> </dependency> <dependency>   <groupId>org.glassfish.jersey.core</groupId>   <artifactId>jersey-common</artifactId>   <version>2.23.2</version> </dependency> <dependency>   <groupId>org.glassfish.jersey.containers</groupId>   <artifactId>jersey-container-servlet