Jersey 介绍
Jersey是JAX-RS（JSR311）开源参考实现用于构建RESTful Web
service。此外Jersey还提供一些额外的API和扩展机制，所以开发人员能够按照自己的需要对Jersey进行扩展。
示例代码：
package com.example;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
/**
* Root resource (exposed at "myresource" path)
*/
@Path("myresource")
public class MyResource {
/**
* Method handling HTTP GET requests. The returned object will be sent
* to the client as "text/plain" media type.
*
* @return String that will be returned as a text/plain response.
*/
@GET
@Produces(MediaType.TEXT_PLAIN)
public String getIt() {
return "Got it!";
}
}