<?xml version="1.0" encoding="utf-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD//BEAN//EN""http://www.springframework.org/dtd/spring-beans.dtd"><beans>  <!--定义一个bean,id是这个bean的唯一标识，class指出这个bean的来源，singleton指定这个bean是否是单例模式，  depends-on指定这个bean初始化前，强制初始化date-->  <bean id="HelloWorld" class="com.gc.action.HelloWorld" singleton="true" depends-on="date">    <!--配置bean的属性-->    <property name="msg">    <value>HelloWorld!</value>    </property>    <!--指定bean的一个依赖-->    <property name="date">    <ref bean="date"/>    </property>  </bean>    <bean id="date" class="java.util.Date"/></beans>

HelloWorld helloWorld = new HelloWorld();BeanWrapper bw = new BeanWrapperlmpl(helloWorld);bw.setPropertyValue("msg", "HelloWorld");System.out.println(bw.getPropertyValue("msg"));

InputStream is = new FileInputStream("config.xml");XmlBeanFactory factory = new XmlBeanFactory(is);HelloWorld helloWorld = (HelloWorld)factory.getBean("HelloWorld");System.out.println(helloWorld.getMsg());

ApplicationContext actx = new FileSystemXmlApplicationContext("config.xml");HelloWorld helloWorld = (HelloWorld)actx.getBean("HelloWorld");System.out.println(helloWorld.getMsg());