Spring实战之ResourceLoaderAware加载资源用法示例

<?xml version="1.0" encoding="GBK"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns="http://www.springframework.org/schema/beans"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">
   <bean id="test" class="org.crazyit.app.service.TestBean"/>
</beans>

package org.crazyit.app.service;
import org.springframework.context.ResourceLoaderAware;
import org.springframework.core.io.ResourceLoader;
public class TestBean implements ResourceLoaderAware
{
  private ResourceLoader rd;
  // 实现ResourceLoaderAware接口必须实现的方法
  // 如果把该Bean部署在Spring容器中，该方法将会由Spring容器负责调用
  // Spring容器调用该方法时，Spring会将自身作为参数传给该方法
  public void setResourceLoader(ResourceLoader resourceLoader)
  {
    this.rd = resourceLoader;
  }
  // 返回ResourceLoader对象的引用
  public ResourceLoader getResourceLoader()
  {
    return rd;
  }
}

package lee;
import org.springframework.context.*;
import org.springframework.context.support.*;
import org.springframework.core.io.*;
import org.dom4j.io.XPPReader;
import org.dom4j.Document;
import org.dom4j.Element;
import java.util.*;
import org.crazyit.app.service.*;
public class SpringTest
{
  public static void main(String[] args)
  {
    // 创建ApplicationContext容器
    ApplicationContext ctx = new
      ClassPathXmlApplicationContext("beans.xml");
    // 获取容器中名为test的Bean实例
    TestBean tb = ctx.getBean("test" , TestBean.class);
    // 通过tb实例来获取ResourceLoader对象
    ResourceLoader rl = tb.getResourceLoader();
    // 判断程序获得ResourceLoader和容器是否相同
    System.out.println(rl == ctx);
  }
}