Spring实战之Bean的作用域singleton和prototype用法分析

<&＃63;xml version="1.0" encoding="GBK"&＃63;>

  
  
  
  
  

package org.crazyit.app.service;
public class Person
{
  private int age;
}

package lee;
import org.springframework.context.*;
import org.springframework.context.support.*;
public class BeanTest
{
 public static void main(String[] args)throws Exception
 {
  // 以类加载路径下的beans.xml文件创建Spring容器
  ApplicationContext ctx = new
   ClassPathXmlApplicationContext("beans.xml"); // ①
  // 判断两次请求singleton作用域的Bean实例是否相等
  System.out.println(ctx.getBean("p1")
   == ctx.getBean("p1"));
  // 判断两次请求prototype作用域的Bean实例是否相等
  System.out.println(ctx.getBean("p2")
   == ctx.getBean("p2"));
  System.out.println(ctx.getBean("date"));
  Thread.sleep(1000);
  System.out.println(ctx.getBean("date"));
 }
}