JAXB 简单Demo

jaxb.JaxbDemo

package jaxb;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;

import pojo.People;

public class JaxbDemo {
	// 编组数据
	public static void marshalData() throws JAXBException, IOException {
		JAXBContext context = JAXBContext.newInstance(People.class);

		Marshaller marshaller = context.createMarshaller();
		marshaller.setProperty(Marshaller.JAXB_ENCODING, "gb2312");// 编码格式
		marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);// 是否格式化生成的xml串
		// 是否省略xml头信息（<?xml version="1.0" encoding="gb2312" standalone="yes"?>）
		marshaller.setProperty(Marshaller.JAXB_FRAGMENT, false);

		People people = new People();

		people.setLogo("=====");

		people.setId(1);

		people.setName("son");

		People father = new People();

		father.setId(2);

		father.setName("father");

		people.setFather(father);

		FileOutputStream os = new FileOutputStream("People.xml");

		marshaller.marshal(people, os);

		os.close();
	}

	// 解组数据
	public static void unmarshalData() throws JAXBException, FileNotFoundException {
		JAXBContext context = JAXBContext.newInstance(People.class);

		Unmarshaller unmarshaller = context.createUnmarshaller();

		People p = (People) unmarshaller.unmarshal(new FileInputStream("People.xml"));

		System.out.println(p.getId() + " : " + p.getName());
	}
}

pojo.AbstractPeople

package pojo;

public class AbstractPeople {
	private String logo;

	public String getLogo() {
		return logo;
	}

	public void setLogo(String logo) {
		this.logo = logo;
	}
}

pojo.People

package pojo;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "People")
@XmlAccessorType(XmlAccessType.FIELD)
public class People extends AbstractPeople{
	private int id;

	private String name;

	private People father;

	public People() {
	}

	public People(int id, String name) {
		this.id = id;
		this.name = name;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public People getFather() {
		return father;
	}

	public void setFather(People father) {
		this.father = father;
	}

}

People.xml

<?xml version="1.0" encoding="gb2312" standalone="yes"?>
<People>
    <logo>=====</logo>
    <id>1</id>
    <name>son</name>
    <father>
        <id>2</id>
        <name>father</name>
    </father>
</People>