简单例子step2
Book.java
 1package step2;
 2
 3import javax.xml.bind.annotation.XmlAccessType;
 4import javax.xml.bind.annotation.XmlAccessorType;
 5/*    @XmlAccessorType此注释可控制类中的属性和字段的默认序列化
 6 *  value=XmlAccessType.PROPERTY表示JAXB 绑定类中的每个
 7 *获取方法/设置方法对将会自动绑定到 XML
 8 * */
 9@XmlAccessorType(value = XmlAccessType.PROPERTY)
10public class Book {
11    
12    private String id;
13    private String name;
14    private float price;
15    
16    public String getId() {
17        return id;
18    }
19    public void setId(String id) {
20        this.id = id;
21    }
22    public String getName() {
23        return name;
24    }
25    public void setName(String name) {
26        this.name = name;
27    }
28    public float getPrice() {
29        return price;
30    }
31    public void setPrice(float price) {
32        this.price = price;
33    }
34    @Override
35    public String toString() {
36        return "Book [id=" + id + ",name=" + name + ",price=" + price + "]";
37    }
38}
39

Customer.java
1package step2;
2import java.util.Set;
3
4import javax.xml.bind.annotation.XmlElement;
5import javax.xml.bind.annotation.XmlElementWrapper;
6import javax.xml.bind.annotation.XmlRootElement;
7import javax.xml.bind.annotation.XmlType;
8
9@XmlRootElement
10@XmlType(propOrder = { "id", "name", "age","book"})
11public class Customer {
12 String name;
13 int age;
14 int id;
15 Set<Book> book;
16 @XmlElement(name="name")
17 public String getName() {
18 return name;
19 }
20
21 public void setName(String name) {
22 this.name = name;
23 }
24
25 @XmlElement(name="age")
26 public int getAge() {
27 return age;
28 }
29
30 public void setAge(int age) {
31 this.age = age;
32 }
33 @XmlElement(name="id")
34 public int getId() {
35 return id;
36 }
37
38 public void setId(int id) {
39 this.id = id;
40 }
41
42
43 @Override
44 public String toString() {
45 return "Customer [id=" + id + ",name=" + name + ",age=" + age + ",book=" + book + "]";
46 }
47 @XmlElementWrapper(name="books")
48 @XmlElement(name="book")
49 public Set<Book> getBook() {
50 return book;
51 }
52
53 public void setBook(Set<Book> book) {
54 this.book = book;
55 }
56
57
58}
59


Object2XmlDemo.java
1package step2;
2
3import java.io.File;
4import java.util.HashSet;
5import java.util.Set;
6
7import javax.xml.bind.JAXBContext;
8import javax.xml.bind.JAXBException;
9import javax.xml.bind.Marshaller;
10
11//Marshaller
12public class Object2XmlDemo {
13 public static void main(String[] args) {
14
15 Customer customer = new Customer();
16 customer.setId(100);
17 customer.setName("suo");
18 customer.setAge(29);
19
20 Book book = new Book();
21 book.setId("1");
22 book.setName("哈里波特");
23 book.setPrice(100);
24
25 Book book2 = new Book();
26 book2.setId("2");
27 book2.setName("苹果");
28 book2.setPrice(50);
29
30 Set<Book> bookSet = new HashSet<Book>();
31 bookSet.add(book);
32 bookSet.add(book2);
33
34 customer.setBook(bookSet);
35
36 try {
37 File file = new File("H:\\Xfile24.xml");
38 JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);
39 Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
40 // output pretty printed
41 jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
42 jaxbMarshaller.marshal(customer, file);
43 jaxbMarshaller.marshal(customer, System.out);
44 } catch (JAXBException e) {
45 e.printStackTrace();
46 }
47 }
48}
49

执行效果
1<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
2<customer>
3 <id>100</id>
4 <name>suo</name>
5 <age>29</age>
6 <books>
7 <book>
8 <id>1</id>
9 <name>鍝堥噷娉㈢壒</name>
10 <price>100.0</price>
11 </book>
12 <book>
13 <id>2</id>
14 <name>鑻规灉</name>
15 <price>50.0</price>
16 </book>
17 </books>
18</customer>
19