Spring注解和接口
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列举一些比较容易混淆的注解
配置
@Configurable：对象管理
@Configuration：配置
@PropertySource：加载配置
@ConfigurationProperties：单独使用不会管理（结合Component/Configuration/EnableConfigurationProperties使用）
@EnableConfigurationProperties：配合ConfigurationProperties使用
初始化销毁
@PostConstruct：初始化
@PreDestroy：销毁
接口
BeanNameAware：获取名称
BeanFactoryAware：获取BeanFactory
ApplicationContextAware：获取上下文
ApplicationEvent/ApplicationListener：事件和监听
生命周期
FactoryBean：创建Bean
InitializingBean：初始化
DisposableBean：销毁
BeanPostProcessor：初始化
BeanFactoryPostProcessor：工厂初始化（Bean生命周期没关：可以用来修改配置）
InstantiationAwareBeanPostProcessor：实例化（每个Bean都会执行）
完整过程：
// 没有实现FactoryBean
BeanFactoryPostProcessor.postProcessBeanFactory
InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation
InstantiationAwareBeanPostProcessor.postProcessAfterInstantiation
InstantiationAwareBeanPostProcessor.postProcessBeforeInitialization
BeanPostProcessor.postProcessBeforeInitialization
@PostConstruct
InitializingBean.afterPropertiesSet
InstantiationAwareBeanPostProcessor.postProcessAfterInitialization
BeanPostProcessor.postProcessAfterInitialization
@PreDestroy
DisposableBean.destroy
// 实现FactoryBean
BeanFactoryPostProcessor.postProcessBeanFactory
InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation
InstantiationAwareBeanPostProcessor.postProcessAfterInstantiation
InstantiationAwareBeanPostProcessor.postProcessBeforeInitialization
BeanPostProcessor.postProcessBeforeInitialization
@PostConstruct
InitializingBean.afterPropertiesSet
InstantiationAwareBeanPostProcessor.postProcessAfterInitialization
BeanPostProcessor.postProcessAfterInitialization
FactoryBean.getObject
InstantiationAwareBeanPostProcessor.postProcessAfterInitialization
BeanPostProcessor.postProcessAfterInitialization
@PreDestroy
DisposableBean.destroy
我们可以注意一下实现和没有实现FactoryBean这个两个的区别
Stream
@RabbitListener：使用SpringBoot：spring-boot-starter-amqp
@StreamListener：使用SpringCloudStream：spring-cloud-stream/spring-cloud-stream-binder-rabbit