对象与xml之间的转换_XmlElement

package step2;
import java.util.Set;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;

@XmlRootElement
@XmlType(propOrder = { "id", "name", "age","book"})
public class Customer {
String name;
int age;
int id;
Set<Book> book;
@XmlElement(name="name")
public String getName() {
return name;
}

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

@XmlElement(name="age")
public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}
@XmlElement(name="id")
public int getId() {
return id;
}

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

@Override
public String toString() {
return "Customer [id=" + id + ",name=" + name + ",age=" + age + ",book=" + book + "]";
}
@XmlElementWrapper(name="books")
@XmlElement(name="book")
public Set<Book> getBook() {
return book;
}

public void setBook(Set<Book> book) {
this.book = book;
}

}

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<customer>
<id>100</id>
<name>suo</name>
<age>29</age>
<books>
<book>
<id>1</id>
<name>哈里波特</name>
<price>100.0</price>
</book>
<book>
<id>2</id>
<name>苹果</name>
<price>50.0</price>
</book>
</books>
</customer>