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SpringBoot 2.5.x 源码

2023-05-16 14:42:13   0  举报

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大纲/内容

@Import(EurekaServerMarkerConfiguration.class)

是

listeners.running()

applicationContextFactory.create()

listeners.starting()

process @ComponentScan

registerResolvableDependency()

processCommonDefinitionAnnotations()

setResourceLoader()

getBean()

new ClassPathBeanDefinitionScaner()

ImportBeanDefinitionRegistrar.class

reader

process interfaces

refreshContext()

registerPostProcessor()

invokeBeanFactoryPostProcessor

super.postProcessBeanFactory()

collectImports()

postProcessAfterInitialization()

postProcessBeanFactory()

ApplicationContext.class

processImports()

继续往下走流程

preInstantiateSingletons()

@Component

postProcessApplicationContext()

getBeanFactory()

Lazy.classPrimary.classDependsOn.classRole.classDescription.class

afterRefresh()

DefaultEventListenerFactory.class

resolveBeforeInstantiation()

configEnvironment()

是否跳过解析

finishBeanFactoryInitialization()

createBootstrapContext()

new StandardServletEnvironment()

afterSingletonsInstantiated()

createBeanFatory()

new LoadTimeWeaverAwareProcessor()

getCondition()

deduceApplicationType

asSourceClass()

factoryId已注册

createBean()

@Import(AutoConfigurationPackages.Registrar.class)

invokeBeanDefinitionRegistryPostProcessors()

//...

deduceMainApplicationClass()

lazyInitialization

DelegatingApplicationContextInitializerSharedMetadataReaderFactoryContextInitializerContextIdApplicationContextInitializerConfigurationWarningApplicationContextInitializerRSocketPortInfoApplicationContextInitializerServerPortInfoApplicationContextInitializerConditionEvaluationReportLoggingListener

解析配置类Parse each @Configuration class

isConfigurationCandidate()

scanner.doScan()

conditionEvaluator.shouldSkip()

loadBeanDefinitions()

new ApplicationListenerDetector()

setInitializers()

parse @Bean

obtainFreshBeanFactory()

freezeConfiguration()

postProcessBeforeInstantiation()

Conditional类型注解

process @Bean

ConfigurationClassPostProcessor.java

有@Import注解

new ApplicationContextAwareProcessor()

@Configuration

@Import、@ImportResource

ApplicationEventPublisher.class

否

new BeanDefinitionLoader()

AutowiredAnnotationBeanPostProcessor.class

Resource.classPostConstruct.classPreDestroy.class

@SpringBootApplication

处理单例bean处理原型bean处理Scope Bean

listeners.environmentPrepared()

customizeBeanFatory()

onRefresh()

imports.addAll() 获取所有的import注解

componentScanParser.parse()

registerListeners()

getImports()

checkConfigurationClassCandidate()

loader.load()

parser.parse()

new AnnotationConfigServletWebServerApplicationContext()

registry.registerBeanDefinition()

registerImport() 递归解析import进来的类

registry.registerAlias()

addBeanPostProcessor()

Autowired.classValue.class

getListeners()

invokeBeanFactoryPostProcessors()

env.validRequiredProperties()

scanner.scan()

processPropertySource()

createWebServer()

configureAdditionalProfiles()

applyBeanPostProcessorsBeforeInstantiation()

request、session、application

筛选配置类

processSuperclass()

listeners.started()

new SpringApplication()

loadBeanDefinitionsFromRegistrars()

ServletWebServerApplicationContext

@EnableEurekaServer

refreshBeanFatory()

registerScope()

loadBeanDefinitionsForBeanMethod()

doProcessConfigurationClass()

ignoreDependencyInterface()

load()

processInterfaces()

new DefaultListableBeanFatory()

initialize()

setClassloader()

registerAnnotationConfigProcessors()

processImportResource()

CommonAnnotationBeanPostProcessor.class

run()

finishRefresh()

initApplicationEventMulticaster()

processConfigurationClass()

ImportSelector.class

listeners.contextPrepared()

new ImportAwareBeanPostProcessor()

doGetBean()

EventListenerMethodProcessor.class

getOrCreateEnvironment()

new BeanPostProcessorChecker()

process @Import

addBeanPostProcessor(...)

ResourceLoader.class

condition.matches()

registerWebApplicationScopes()

process @Bean Method

internalCachingMetadataReaderFactory

printBanner()

@Component@ComponentScan@Import@ImportResource@Bean定义的方法

createBeanDefinitionLoader()

BootstrapApplicationListenerLoggingSystemShutdownListenerEnvironmentPostProcessorApplicationListenerAnsiOutputApplicationListenerLoggingApplicationListenerBackgroundPreinitializerRestartListenerDelegatingApplicationListenerParentContextCloserApplicationListenerClearCachesApplicationListenerFileEncodingApplicationListenerLiquibaseServiceLocatorApplicationListener

加载classpath下所有的 META-INF/spring.factories配置类

EventListener.class

bindToSpringApplication(env)

processConfigBeanDefinitions()

registerBeanDefinition()

applicationContext.refresh()

annotatedReader

prepareBeanFactory()

return

invokeBeanDefinitionRegistryPostProcessors

@ComponentScan

enhanceConfigurationClasses()