SPEL : Accessing Properties

Data.java:

package com.lnn.spel.props;

public class Data {

      private String accessToken;

      public String getAccessToken() {

            return accessToken;

      }

      public void setAccessToken(String accessToken) {

            this.accessToken = accessToken;

      }    

}

settings.properties:

twitter.accessToken = Leninkumar Kumar

props.xml:

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

      xmlns:p="http://www.springframework.org/schema/p"

      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

      xmlns:util="http://www.springframework.org/schema/util"

      xsi:schemaLocation="http://www.springframework.org/schema/util

      http://www.springframework.org/schema/util/spring-util-3.0.xsd                  

      http://www.springframework.org/schema/beans

      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">           

      <util:properties id="settings" location="classpath:settings.properties"/> 

      <bean id="data" class="com.lnn.spel.props.Data">

            <property name="accessToken" value="#{settings['twitter.accessToken']}"/>

      </bean>

</beans>

Test.java:

package com.lnn.spel.props;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {

      public static void main(String[] args) {

            ApplicationContext context = new ClassPathXmlApplicationContext("props.xml");

            Data data = context.getBean("data", Data.class);

            System.out.println(data.getAccessToken());

      }

}