Following are the steps
to convert java object to XML.
Step 1: Define
model object using jaxb annotations.
Step 2: Define
JAXBContext instance using model class Employee.
JAXBContext contextObj
= JAXBContext.newInstance(Employee.class);
Step 3: Define
Marshaller instance using the JAXBContext instance.
Marshaller
marshallerObj = contextObj.createMarshaller();
marshallerObj.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,
true);
Step 4: Now
call marshal method on model object.
marshallerObj.marshal(emp1,
System.out);
Following is the
complete working application.
import javax.xml.bind.annotation.XmlRootElement; import javax.xml.bind.annotation.XmlType; @XmlType(name = "", propOrder = { "id", "firstName", "lastName" }) @XmlRootElement(name = "employee") public class Employee { private int id; private String firstName; private String lastName; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } }
import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Marshaller; public class Test { public static void main(String args[]) throws JAXBException { JAXBContext contextObj = JAXBContext.newInstance(Employee.class); Marshaller marshallerObj = contextObj.createMarshaller(); marshallerObj.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); Employee emp1 = new Employee(); emp1.setId(1); emp1.setFirstName("Hari krishna"); emp1.setLastName("Gurram"); marshallerObj.marshal(emp1, System.out); } }
Run above application,
you will get following output.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <employee> <id>1</id> <firstName>Hari krishna</firstName> <lastName>Gurram</lastName> </employee>
Annotations used
@XmlRootElement : Maps a class to an XML element. You can use this
annotation on top of any class (or) enum.
@XmlType : Maps a class or an enum type to a XML Schema type. You can specify the
order of element in the xml document.
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