JAXB

01	package com.mkyong.core;

02

03	import javax.xml.bind.annotation.XmlAttribute;

04	import javax.xml.bind.annotation.XmlElement;

05	import javax.xml.bind.annotation.XmlRootElement;

06

07	@XmlRootElement

08	public class Customer {

09

10	String name;

11

int age;

12

int id;

13

14	public String getName() {

15	return name;

16

}

17

18	@XmlElement

19	public void setName(String name) {

20	this.name = name;

21

}

22

23	public int getAge() {

24	return age;

25

}

26

27	@XmlElement

28	public void setAge(int age) {

29	this.age = age;

30

}

31

32	public int getId() {

33	return id;

34

}

35

36	@XmlAttribute

37	public void setId(int id) {

38	this.id = id;

39

}

40

41

}

[代码] JAXBExample.java

01	package com.mkyong.core;

02

03	import java.io.File;

04	import javax.xml.bind.JAXBContext;

05	import javax.xml.bind.JAXBException;

06	import javax.xml.bind.Marshaller;

07

08	public class JAXBExample {

09	public static void main(String[] args) {

10

11	Customer customer = new Customer();

12	customer.setId(100);

13	customer.setName("mkyong");

14	customer.setAge(29);

15

16

try {

17

18	File file = new File("C:\\file.xml");

19	JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);

20	Marshaller jaxbMarshaller = jaxbContext.createMarshaller();

21

22	// output pretty printed

23	jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

24

25	jaxbMarshaller.marshal(customer, file);

26	jaxbMarshaller.marshal(customer, System.out);

27

28	} catch (JAXBException e) {

29	e.printStackTrace();

30

}

31

32

}

33

}

[代码] 输出

1	<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

2	<customer id="100">

3	<age>29</age>

4	<name>mkyong</name>

5	</customer>

[代码] 将XML转为对象

01	package com.mkyong.core;

02

03	import java.io.File;

04	import javax.xml.bind.JAXBContext;

05	import javax.xml.bind.JAXBException;

06	import javax.xml.bind.Unmarshaller;

07

08	public class JAXBExample {

09	public static void main(String[] args) {

10

11

try {

12

13	File file = new File("C:\\file.xml");

14	JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);

15

16	Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();

17	Customer customer = (Customer) jaxbUnmarshaller.unmarshal(file);

18	System.out.println(customer);

19

20	} catch (JAXBException e) {

21	e.printStackTrace();

22

}

23

24

}

25

}

[代码] 输出

1	Customer [name=mkyong, age=29, id=100]