XML > JAXB > Customize XML Tag names using Property Accessor
Customize XML Tag names using Property Accessor
The following example shows customizing XML tag name using @XmlElement annotation.
JAXB uses the following accessor types to serialize java object to XML,
PUBLIC_MEMBER (default) - Binds public getters/setters/fields
FIELD - Binds non static, non transient fields
PROPERTY - Binds public getters/setters
NONE - No binding
As the default accessor type is PUBLIC_MEMBER, the annotation(Such as @XmlElement) we put at
field level causes Class has two properties of the same name exception.
This is because JAXB tries to get data using both fields and getter/setter pairs.
We can solve this problem by placing annotation at public getter/setter level
using default PUBLIC_MEMBER or PROPERTY accessor type.
@XmlRootElement(name = "student")
//@XmlAccessorType(XmlAccessType.PROPERTY) public class Student3 { private String firstName; private String lastName; private int age; private String hobby; private Date dob;
/**
* NOTE : Should have a no-arg default constructor.
*/ public Student3() {
}
public Student3(String firstName, String lastName, int age, String hobby,
Date dob) { super(); this.firstName = firstName; this.lastName = lastName; this.age = age; this.hobby = hobby; this.dob = dob;
}
/**
* Since the default @XmlAccessorType uses
* public getter/setters use the same to
* specify alternate name
*/
@XmlElement(name = "first_name") public String getFirstName() { return firstName;
}
public void setFirstName(String firstName) { this.firstName = firstName;
}
@XmlElement(name = "last_name") public String getLastName() { return lastName;
} public void setLastName(String lastName) { this.lastName = lastName;
} public int getAge() { return age;
} public void setAge(int age) { this.age = age;
} public String getHobby() { return hobby;
} public void setHobby(String hobby) { this.hobby = hobby;
} public Date getDob() { return dob;
} public void setDob(Date dob) { this.dob = dob;
}
public static void main (String [] args) throws JAXBException {
Student3 student = new Student3("Sriram", "Kasireddi", 2, "Painting", new Date());
/**
* Create JAXB Context from the classes to be serialized
*/
JAXBContext context = JAXBContext.newInstance(Student3.class);
Marshaller m = context.createMarshaller();
m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
m.marshal(student, System.out);
