jackson 实现 javabean 与 json、xml之间

1,导包fastjson

2，定义一个JavaBean 标明json注解

@JacksonXmlRootElement

public class User {

    private String name;

    @JacksonXmlProperty(localName="Name")

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    } 

3,实现   java bean ———> xml(第一种)

User user = new User();       

user.setName("AA");       

user.setAge(10);

System.out.println(new XmlMapper().writeValueAsString(user));

（第二种）导包com.thoughtworks.xstream

XStream x=new XStream();      

  x.alias("User", User.class);     

  x.aliasField("Name", User.class, "name");     

  System.out.println(x.toXML(user));

4,实现     java bean ————> json

System.out.println(new ObjectMapper().writeValueAsString(user));

5,实现      json ————> java bean

String json = "{\"name\":\"zhangsan\",\"age\":10,\"sex\":\"man\",\"nickName\":\"张三\"}";        User user1=new ObjectMapper().readValue(json, User.class);        System.out.println(user1.toString());

6,实现      xml ————> java bean

XStream x=new XStream();     

String xml=x.toXML(user);       

System.out.println(new ObjectMapper().readValue(xml, User.class)); 

结果就是