[Java知识库]springboot启动流程

@Bean和@Configuration两个注解要配合使用
spring.factories里这么写可以省掉类AppConfig上的@Configuration


@ComponentScan(excludeFilters = { @Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class),
@Filter(type = FilterType.CUSTOM, classes = AutoConfigurationExcludeFilter.class) })中@Filter(type = FilterType.CUSTOM, classes = TypeExcludeFilter.class)的用法
在创建spring容器之后初始化之前，会去拿spring.factories下的ApplicationContextInitializer对应的类；

SpringApplication.run(Demo4Application.class, args)
生成SpringApplicat

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