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Spring with Xstream Example

Xstream is a library to serialize objects to xml and vice-versa without requirement of any mapping file. Notice that castor requires an mapping file.

XStreamMarshaller class provides facility to marshal objects into xml and vice-versa.

Example of Spring and Xstream Integration (Marshalling Java Object into XML)

You need to create following files for marshalling java object into XML using Spring with Xstream:

Employee.java
applicationContext.xml
Client.java

Required Jar files

To run this example, you need to load:

Spring Core jar files
Spring Web jar files
xstream-1.3.jar

download all the jar files for spring including core, web, aop, mvc, j2ee, remoting, oxm, jdbc, orm etc.

download xstream-1.3.jar

Employee.java

If defines three properties id, name and salary with setters and getters.

package com.w3cschoool;
public class Employee {
private int id;
private String name;
private float salary;

public int getId() {
	return id;
}
public void setId(int id) {
	this.id = id;
}
public String getName() {
	return name;
}
public void setName(String name) {
	this.name = name;
}
public float getSalary() {
	return salary;
}
public void setSalary(float salary) {
	this.salary = salary;
}
}

applicationContext.xml

It defines a bean xstreamMarshallerBean where Employee class is bound with the OXM framework.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
	
<bean id="xstreamMarshallerBean" class="org.springframework.oxm.xstream.XStreamMarshaller">
	<property name="annotatedClasses" value="com.w3cschoool.Employee"></property>
</bean>
</beans>

Client.java

It gets the instance of Marshaller from the applicationContext.xml file and calls the marshal method.

package com.w3cschoool;
import java.io.FileWriter;
import java.io.IOException;
import javax.xml.transform.stream.StreamResult;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.oxm.Marshaller;

public class Client{
 public static void main(String[] args)throws IOException{
  ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
  Marshaller marshaller = (Marshaller)context.getBean("xstreamMarshallerBean");
		
  Employee employee=new Employee();
  employee.setId(101);
  employee.setName("Sonoo Jaiswal");
  employee.setSalary(100000);
		
  marshaller.marshal(employee, new StreamResult(new FileWriter("employee.xml")));
  
  System.out.println("XML Created Sucessfully");
 }
}

Output of the example

employee.xml

<com.w3cschoool.Employee>
<id>101</id>
<name>Sonoo Jaiswal</name>
<salary>100000.0</salary>
</com.w3cschoool.Employee>

download this example (developed using Myeclipse IDE)
download this example (developed using Eclipse IDE)

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