Spring-管理Bean 使用BeanFactory管理Bean

package com.gc.action;

import java.util.Date;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.DisposableBean;

public class HelloWorld
//implements InitializingBean,DisposableBean
{

private String msg=null;//该变量用来存储字符串
private Date date=null;//该变量用来存储日期

public void afterPropertiesSet() {
// TODO Auto-generated method stub
this.msg="HelloWorld";
this.date=new Date();
System.out.println("2000");
}

public void cleanup() {
// TODO Auto-generated method stub
this.msg="";
this.date=null;
System.out.println("您销毁了msg"+this.msg+"和date"+this.date);
}

public HelloWorld(String msg)
{
this.msg=msg;
}

public HelloWorld()//这个必须写，否则不能转到上面的那个
{
this.msg=msg;
}

//设定变量msg的set方法
public void setMsg(String msg) {
this.msg=msg;
}

//获取变量msg的get方法
public String getMsg() {
return this.msg;
}

public Date getDate() {
return this.date;
}

public void setDate(Date date) {
this.date = date;
}

}

<?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-->
<bean id="HelloWorld" class="com.gc.action.HelloWorld" init-method="afterPropertiesSet" destroy-method="cleanup">
<!--将其变量msg通过依赖注入-->

</bean>

</beans>

package com.gc.test;

import java.util.Date;

import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import org.springframework.core.io.ClassPathResource;

import com.gc.action.HelloWorld;

public class TestHelloWorld {
public static void main(String[] args) throws InstantiationException, IllegalAccessException, ClassNotFoundException
{
//通过ClassPathResource获取配置文档
ClassPathResource res=new ClassPathResource("config.xml");

//通过XmlBeanFactory来解析配置翁当
XmlBeanFactory factory=new XmlBeanFactory(res);

//根据id获取Bean
HelloWorld helloWorld=(HelloWorld)factory.getBean("HelloWorld");

//拿出Bean在配置文档中设定的内容
System.out.println(helloWorld.getDate()+" "+helloWorld.getMsg()+"------");
}
}