The following example will demonstrate the usage of the dependency injection via xml. The example will inject a writer into another class.

Create a new Java project "de.vogella.spring.di.xml.first" and include the minimal required spring jars into your classpath.

Copy your model class from the de.vogella.spring.di.model project into this project.

Under the src folder create a folder META-INF and create the following file in this folder. This is the Spring configuration file.

			
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd">


<bean id="writer" class="writer.NiceWriter" />

<bean id="mySpringBeanWithDependency" class="testbean.MySpringBeanWithDependency">
<property name="writer" ref="writer" />
</bean>

</beans>
		

Again, you can now wire the application together. Create a main class which reads the configuration file and starts the application.

			
package main;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import testbean.MySpringBeanWithDependency;

public class Main {
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext(
				"META-INF/beans.xml");
		BeanFactory factory = context;
		MySpringBeanWithDependency test = (MySpringBeanWithDependency) factory
				.getBean("mySpringBeanWithDependency");
		test.run();
	}
}