ResourceLoaderAware : When we load resources using bean, ResourceLoaderAware will help us to load resources using getter/setter methods.
For more details see my last blog Click
Below example will help you to understand better:

Create CustomerService.java and implement ResourceLoaderAware interface.

package com.bhagwan.customer.services;

import org.springframework.context.ResourceLoaderAware;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;

public class CustomerService implements ResourceLoaderAware
{
    private ResourceLoader resourceLoader;

    public void setResourceLoader(ResourceLoader resourceLoader) {
        this.resourceLoader = resourceLoader;
    }

    public Resource getResource(String location){
        return resourceLoader.getResource(location);
    }
}

Spring-Customer.xml

<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-2.5.xsd">

   <bean id="customerService" 
           class="com.bhagwan.customer.services.CustomerService" />

</beans>

BeanResourceApp.java

package com.bhagwan.common;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.io.Resource;

import com.bhagwan.customer.services.CustomerService;
public class BeanResourceApp 
{
    public static void main( String[] args )
    {
        ApplicationContext appContext = 
           new ClassPathXmlApplicationContext(new String[] {"Spring-Customer.xml"});

        CustomerService cust = 
           (CustomerService)appContext.getBean("customerService");

        Resource resource = 
            cust.getResource("classpath:com/bhagwan/common/testing.txt");

    try{
          InputStream is = resource.getInputStream();
          BufferedReader br = new BufferedReader(new InputStreamReader(is));

          String line;
          while ((line = br.readLine()) != null) {
                System.out.println(line);
          } 
          br.close();

        }catch(IOException e){
            e.printStackTrace();
        }

    }
}