springboot自动配置原理

font color=\"#ff0000\

注册成为bean

loadSpringFactories(classLoaderToUse)

@EnableAutoConfiguration

public String[] font color=\"#ff3333\

@EnableAutoConfiguration 开启自动配置

@SpringBootApplication 

protected AutoConfigurationEntry getAutoConfigurationEntry(AnnotationMetadata annotationMetadata){// 省略语句....在判断是否开启注解List<String> configurations = font color=\"#ff3333\" style=\"\

@Import(AutoConfigurationImportSelector.class) 按照需要给ioc导入配置类

最后: 等价于:@Import({很多配置类})

AutoConfigurationImportSelector类

SpringFactoriesLoader.loadFactoryNames

getAutoConfigurationEntry 方法

 protected Class<?> getSpringFactoriesLoaderFactoryClass() {  return EnableAutoConfiguration.class; }

getCandidateConfigurations 方法

导入配置类的流程