import java.io.File;

import javax.xml.bind.JAXBContext;

import javax.xml.bind.JAXBException;

import javax.xml.bind.Marshaller;

public class Test {

public static void main(String[] args) throws JAXBException {

User u = new User();

u.setId(1);

u.setName("zhanghao");

Address address = new Address();

address.setProvince("shannxi");

address.setCity("baoji");

address.setStreet("zhongshanRoad");

u.setAddress(address);

UserList user = new UserList();

user.add(u);

user.add(u);

user.add(u);

JAXBContext ctx = JAXBContext.newInstance(UserList.class);

Marshaller marshaller = ctx.createMarshaller();

marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");

marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);

File file= new File("c:\\fff.xml");

marshaller.marshal(user, System.out);

marshaller.marshal(user, file);

}

}