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Create a main class OXMApplication.java with marshaller and unmarshaller objects. The objective of this class is to marshall a student object to student.xml using marshaller object and then unmarshall the student.xml to student object using unmarshaller object.
Example
OXMApplication.java
package com.tutorialspoint.oxm; import java.io.FileInputStream; import java.io.FileWriter; import java.io.IOException; import javax.xml.transform.stream.StreamResult; import javax.xml.transform.stream.StreamSource; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import org.springframework.oxm.Marshaller; import org.springframework.oxm.Unmarshaller; import org.springframework.oxm.XmlMappingException; import com.tutorialspoint.oxm.model.Student; public class OXMApplication { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("applicationcontext.xml"); Marshaller marshaller = (Marshaller)context.getBean("jaxbMarshaller"); Unmarshaller unmarshaller = (Unmarshaller)context.getBean("jaxbMarshaller"); // create student object Student student = new Student(); student.setAge(14); student.setName("Soniya"); try { marshaller.marshal(student, new StreamResult(new FileWriter("student.xml"))); System.out.println("Student marshalled successfully."); FileInputStream is = new FileInputStream("student.xml"); Student student1 = (Student)unmarshaller.unmarshal(new StreamSource(is)); System.out.println("Age: " + student1.getAge() + ", Name: " + student1.getName()); } catch(IOException | XmlMappingException ex) { ex.printStackTrace(); } } }
Output
Right click in the content area of the file in eclipse and then select Run as java application and verify the output.
Oct 10, 2021 8:48:12 PM org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@1e127982: startup date [Sun Oct 10 20:48:12 IST 2021]; root of context hierarchy Oct 10, 2021 8:48:12 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions INFO: Loading XML bean definitions from class path resource [applicationcontext.xml] Oct 10, 2021 8:48:13 PM org.springframework.oxm.jaxb.Jaxb2Marshaller createJaxbContextFromClasses INFO: Creating JAXBContext with classes to be bound [class com.tutorialspoint.oxm.model.Student] Student marshalled successfully. Age: 14, Name: Soniya
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