spring代码笔记

 ApplicationContext context = new ClassPathXmlApplicationContext("Beans.xml");
 
 //BeanFactory 的子类
 XmlBeanFactory factory = new XmlBeanFactory(new ClassPathResource("Beans.xml"));
 
 //ApplicationContext接口，常用的接口实现FileSystemXmlApplicationContext，ClassPathXmlApplicationContext，WebXmlApplicationContext
  ApplicationContext context = new FileSystemXmlApplicationContext("C:/Users/ZARA/workspace/HelloSpring/src/Beans.xml");
  
   <bean id="..." class="..." init-method="..." scope="...">
   </bean>
   
   bean的作用域：singleton单例，prototype多例，request，session，global-session
   bean的生命周期：bean的建立，Setter注入，BeanNameAware的setBeanName(),BeanFactoryAware的setBeanFactory(),BeanPostProcessors的processBeforeInitialization(),InitializingBean的afterPropertiesSet(),Bean定义文件中定义init-method,BeanPostProcessors的processAfterInitialization(),DisposableBean的destroy(),Bean定义文件中定义destroy-method