Resteasy转换JAXB和json
resteasy其实是个很好用的类库,下面介绍下如何使用Resteay去
在JAXB和JSON中进行转换。注意resteasy使用的是Jettison JSON library
(地址：http://jettison.codehaus.org/）

1） pom.xml文件的设置
   <repositories>
<repository>
<id>JBoss repository</id>
<url>https://repository.jboss.org/nexus/content/groups/public-jboss/</url>
</repository>
  </repositories>

  <dependencies>

<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxrs</artifactId>
<version>2.2.1.GA</version>
</dependency>

<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxb-provider</artifactId>
<version>2.2.0.GA</version>
</dependency>

<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jettison-provider</artifactId>
<version>2.2.0.GA</version>
</dependency>

  </dependencies>

2）写一个类，使用JAXB
 

import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
 
@XmlRootElement(name = "movie")
public class Movie {
 
	String name;
	String director;
	int year;
 
	@XmlElement
	public String getName() {
		return name;
	}
 
	public void setName(String name) {
		this.name = name;
	}
 
	@XmlElement
	public String getDirector() {
		return director;
	}
 
	public void setDirector(String director) {
		this.director = director;
	}
 
	@XmlAttribute
	public int getYear() {
		return year;
	}
 
	public void setYear(int year) {
		this.year = year;
	}
 
}

3） 然后我们就可以把上面的pojo类转变为json了，看下jboss的reseteasy是如何做的，
  

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import org.jboss.resteasy.annotations.providers.jaxb.json.BadgerFish;
 
@Path("/json/movie")
public class JSONService {
 
	@BadgerFish
	@GET
	@Path("/get")
	@Produces("application/json")
	public Movie getMovieInJSON() {
 
		Movie movie = new Movie();
		movie.setName("Transformers: Dark of the Moon");
		movie.setDirector("Michael Bay");
		movie.setYear(2011);
 
		return movie; 
 
	}
 
}

4 当访问“/json/movie/gets"时，就显示对应的json了
 

{
	"movie":
	{
		"@year":"2011",
		"director":{
			"$":"Michael Bay"
		},
		"name":{
			"$":"Transformers: Dark of the Moon"
		}
	}
}

   至于这个@BadgerFish有点怪怪的，有待进一步学习