Spring IOC的缓存

Posted 2022-04-10 linlf03

1、将上一篇的测试代码修改如下

public class SpringTest 

	public static void main(String[] args) 
			
		ClassPathResource resource = new ClassPathResource("com/example/spring/beans.xml");
		DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
		
		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(factory);
		
		reader.loadBeanDefinitions(resource);
		
		Person person = (Person)factory.getBean("person");
		
		System.out.println(person.say());
		
		
		Person person2 = (Person)factory.getBean("person");
		
		System.out.println(person == person2);
		
	

　　输出结果：

Hello,Tom
true

　　说明person和person2是同一个对象

 

如果此时在beans.xml增加属性scope="prototype"，

则输出结果为false

Hello,Tom
false