spring application之AbstractApplicationContext

org.springframework.context.support.AbstractApplicationContext

类图，用2张图拼接而成

下面说一下各个类(接口)的作用

Closeble,AutoCloseble

Closeble jdk提供的，基于流的关闭
AutoCloseble JDK7，支持try() 自动关闭

org.springframework.context.Lifecycle 生命周期，启动与关闭

提供start()与stop()方法

org.springframework.context.ApplicationEventPublisher

事件发布体系

SimpleApplicationEventMulticaster负责注册，删除，与发布事件，类似于观察者模式。注册事件支持beanName,所以在创建SimpleApplicationEventMulticaster``需要一个BeanFactory

ConfigurableApplicationContext

主要有以下几个方法:

void setEnvironment(ConfigurableEnvironment environment);
void addBeanFactoryPostProcessor(BeanFactoryPostProcessor postProcessor);//BeanFactory后置处理器
void addApplicationListener(ApplicationListener<?> listener);
void addProtocolResolver(ProtocolResolver resolver);
void refresh() throws BeansException, IllegalStateException;
void registerShutdownHook();
void close();

AbstractApplicationContext

核心方法:public void refresh() throws BeansException, IllegalStateException;

prepareRefresh();//刷新准备，子类覆写
ConfigurableListableBeanFactory beanFactory = obtainFreshBeanFactory(); //组装BeanFactory
prepareBeanFactory(beanFactory);//解决BeanFactory的Bean依赖，获取并设置ApplicationListern
postProcessBeanFactory(beanFactory); //子类覆写
invokeBeanFactoryPostProcessors(beanFactory);//处理BeanFacory后置处理器registerBeanPostProcessors(beanFactory); //注册Bean后置处理器
initMessageSource();//i18ninitApplicationEventMulticaster();//事件广播器