Spring-管理Bean 使用BeanFactory管理Bean

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;
	}

}

配置文件：

<?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>

测试程序：

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()+"------");
    }
}