在线记录源码调试之@MapperScan源码分析(一)注册userMapper的bean定义_随笔

在线记录源码调试之@MapperScan源码分析(一)注册userMapper的bean定义测试用例1

一个简单的springboot工程，在MainApplication上标注@MapperScan(“com.example.mapper”)

@MapperScan("com.example.mapper") //扫描的mapper
@SpringBootApplication
public class DemoApplication {

	public static void main(String[] args) {
		SpringApplication.run(DemoApplication.class, args);
	}
}

测试用例2

在mapper路径下建一个UserMapper接口

@Repository
public interface UserMapper {

    User Sel(int id);
}

收集启动类的@MapperScan注解对应的import类将断点打到ConfigurationClassParser$SourceClass.getAnnotationAttributes方法,则代码执行过程如下代码块1：main

运行

package com.example;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@MapperScan("com.example.mapper") //扫描的mapper
@SpringBootApplication
public class DemoApplication {

	public static void main(String[] args) {

		SpringApplication.run(DemoApplication.class, args);

		"(1) 运行"

	}
}

代码块2：run

运行

参数：args=[]

参数：primarySource=class com.example.DemoApplication

package org.springframework.boot;

public class SpringApplication {

	public static ConfigurableApplicationContext run(Class primarySource, //args=[];primarySource=class com.example.DemoApplication;
			String... args) {

		return run(new Class[] { primarySource }, args); //程序启动入口

		"(2) 运行"

		"参数：args=[]"
		"参数：primarySources=class com.example.DemoApplication,"

		"程序启动入口"

	}

}

代码块3：run

运行

参数：args=[]

参数：primarySources=class com.example.DemoApplication,

package org.springframework.boot;

public class SpringApplication {

	public static ConfigurableApplicationContext run(Class[] primarySources, //args=[];primarySources=class com.example.DemoApplication,;
			String[] args) {

		return new SpringApplication(primarySources).run(args); //new 了一个 SpringApplication，然后执行 run 方法

		"(3) 运行"

		"参数：args=[]"

		"new 了一个 SpringApplication，然后执行 run 方法"

	}

}

代码块4：run

刷新上下文

参数：args=[]

package org.springframework.boot;

public class SpringApplication {

	public ConfigurableApplicationContext run(String... args) { //args=[];
				......

			refreshContext(context); //s刷新容器；ioc容器初始化（如果是web应用还会创建嵌入式的Tomcat）；Spring注解版扫描，创建，加载所有组件的地方；（配置类，组件，自动配置）

			"(4) 刷新上下文"

			"s刷新容器；ioc容器初始化（如果是web应用还会创建嵌入式的Tomcat）；Spring注解版扫描，创建，加载所有组件的地方；（配置类，组件，自动配置）"

				......
	}

}

代码块5：refreshContext

刷新

package org.springframework.boot;

public class SpringApplication {

	private void refreshContext(ConfigurableApplicationContext context) {

		refresh(context); //调用 AbstractApplication#refresh 方法，去初始化IOC容器

		"(5) 刷新"

		"调用 AbstractApplication#refresh 方法，去初始化IOC容器"

				......
	}

}

代码块6：refresh

刷新

package org.springframework.boot;

public class SpringApplication {

	protected void refresh(ApplicationContext applicationContext) {
				......

		((AbstractApplicationContext) applicationContext).refresh(); //强转为父类方法执行

		"(6) 刷新"

		"强转为父类方法执行"

	}

}

代码块7：refresh

刷新

package org.springframework.boot.web.servlet.context;

public class ServletWebServerApplicationContext extends GenericWebApplicationContext implements ConfigurableWebServerApplicationContext{

	@Override
	public final void refresh() throws BeansException, IllegalStateException {
				......

			super.refresh(); //执行刷新！

			"(7) 刷新"

			"执行刷新！"

				......
	}

}

代码块8：refresh

调用Bean工厂后处理器

package org.springframework.context.support;

public class AbstractApplicationContext extends DefaultResourceLoader implements ConfigurableApplicationContext{

	@Override
	public void refresh() throws BeansException, IllegalStateException {
				......

				invokeBeanFactoryPostProcessors(beanFactory); //5. 执行BeanFactory各种PostProcessor处理器 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu; 

				"(8) 调用Bean工厂后处理器"

				"参数：beanFactory=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication]; root of factory hierarchy"

				"5. 执行BeanFactory各种PostProcessor处理器 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu;"

				......
	}

}

代码块9：invokeBeanFactoryPostProcessors

调用Bean工厂后处理器

参数：beanFactory=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springfra…

package org.springframework.context.support;

public class AbstractApplicationContext extends DefaultResourceLoader implements ConfigurableApplicationContext{

	protected void invokeBeanFactoryPostProcessors(ConfigurableListableBeanFactory beanFactory) { //beanFactory=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication]; root of factory hierarchy;

		PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(beanFactory, getBeanFactoryPostProcessors()); //2.invokeBeanFactoryPostProcessors: 实例化并调用所有已注册的BeanFactoryPostProcessor 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu; 

		"(9) 调用Bean工厂后处理器"

		"参数：beanFactory=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication]; root of factory hierarchy"

		"2.invokeBeanFactoryPostProcessors: 实例化并调用所有已注册的BeanFactoryPostProcessor 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu;"

				......
	}

}

代码块10：invokeBeanFactoryPostProcessors

调用注册Bean定义后置处理器

参数：beanFactory=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springfra…

package org.springframework.context.support;

public class PostProcessorRegistrationDelegate {

	public static void invokeBeanFactoryPostProcessors( //beanFactory=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication]; root of factory hierarchy;
			ConfigurableListableBeanFactory beanFactory, List beanFactoryPostProcessors) {
				......

			invokeBeanDefinitionRegistryPostProcessors(currentRegistryProcessors, registry); //5.4 遍历currentRegistryProcessors, 执行postProcessBeanDefinitionRegistry方法 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu; 

			"(10) 调用注册Bean定义后置处理器"

			"参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory]; root of factory hierarchy"

			"5.4 遍历currentRegistryProcessors, 执行postProcessBeanDefinitionRegistry方法 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu;"

				......
	}

}

代码块11：invokeBeanDefinitionRegistryPostProcessors

调用注册Bean定义后置处理器方法

参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframew…

package org.springframework.context.support;

public class PostProcessorRegistrationDelegate {

	private static void invokeBeanDefinitionRegistryPostProcessors( //registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory]; root of factory hierarchy;
			Collection postProcessors, BeanDefinitionRegistry registry) {
				......

			postProcessor.postProcessBeanDefinitionRegistry(registry); //就一个ConfigurationClassPostProcessor 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu; 

			"(11) 调用注册Bean定义后置处理器方法"

			"参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory]; root of factory hierarchy"

			"就一个ConfigurationClassPostProcessor 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu;"

				......
	}

}

代码块12：postProcessBeanDefinitionRegistry

处理配置类bean定义

参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframew…

package org.springframework.context.annotation;

public class ConfigurationClassPostProcessor implements BeanDefinitionRegistryPostProcessor{

	@Override
	public void postProcessBeanDefinitionRegistry(BeanDefinitionRegistry registry) { //registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory]; root of factory hierarchy;
				......

		processConfigBeanDefinitions(registry); //2. 开始解析 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu; 

		"(12) 处理配置类bean定义"

		"参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory]; root of factory hierarchy"

		"2. 开始解析 	org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper,org.springframework.boot.autoconfigure.AutoConfigurationPackages,org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration,org.springframework.boot.autoconfigure.condition.BeanTypeRegistry,propertySourcesPlaceholderConfigurer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration$TomcatWebSocketConfiguration,websocketServletWebServerCustomizer,org.springframework.boot.autoconfigure.websocket.servlet.WebSocketServletAutoConfiguration,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryConfiguration$EmbeddedTomcat,tomcatServletWebServerFactory,org.springframework.boot.autoconfigure.web.servlet.ServletWebServerFactoryAutoConfiguration,servletWebServerFactoryCustomizer,tomcatServletWebServerFactoryCustomizer,server-org.springframework.boot.autoconfigure.web.ServerProperties,org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor,org.springframework.boot.context.properties.ConfigurationBeanFactorymetadata,webServerFactoryCustomizerBeanPostProcessor,errorPageRegistrarBeanPostProcessor,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletConfiguration,dispatcherServlet,spring.http-org.springframework.boot.autoconfigure.http.HttpProperties,spring.mvc-org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration$DispatcherServletRegistrationConfiguration,dispatcherServletRegistration,org.springframework.boot.autoconfigure.web.servlet.DispatcherServletAutoConfiguration,org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration,taskExecutorBuilder,applicationTaskExecutor,spring.task.execution-org.springframework.boot.autoconfigure.task.TaskExecutionProperties,org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,defaultValidator,methodValidationPostProcessor,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration,error,beanNameViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration$DefaultErrorViewResolverConfiguration,conventionErrorViewResolver,org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration,errorAttributes,basicErrorController,errorPageCustomizer,preserveErrorControllerTargetClassPostProcessor,spring.resources-org.springframework.boot.autoconfigure.web.ResourceProperties,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter$FaviconConfiguration,faviconHandlerMapping,faviconRequestHandler,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration,requestMappingHandlerAdapter,requestMappingHandlerMapping,mvcConversionService,mvcValidator,mvcContentNegotiationManager,mvcPathMatcher,mvcUrlPathHelper,viewControllerHandlerMapping,beanNameHandlerMapping,resourceHandlerMapping,mvcResourceUrlProvider,defaultServletHandlerMapping,mvcUriComponentsContributor,httpRequestHandlerAdapter,simpleControllerHandlerAdapter,handlerExceptionResolver,mvcViewResolver,mvcHandlerMappingIntrospector,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter,defaultViewResolver,viewResolver,welcomePageHandlerMapping,requestContextFilter,org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration,hiddenHttpMethodFilter,formContentFilter,org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari,dataSource,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration$Hikari,org.springframework.boot.autoconfigure.jdbc.DataSourceJmxConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$PooledDataSourceConfiguration,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration$HikariPoolDataSourcemetadataProviderConfiguration,hikariPoolDataSourcemetadataProvider,org.springframework.boot.autoconfigure.jdbc.metadata.DataSourcePoolmetadataProvidersConfiguration,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializerInvoker,org.springframework.boot.autoconfigure.jdbc.DataSourceInitializationConfiguration,dataSourceInitializerPostProcessor,org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfigu;"

	}

}

代码块13：processConfigBeanDefinitions

解析

参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframew…

package org.springframework.context.annotation;

public class ConfigurationClassPostProcessor implements BeanDefinitionRegistryPostProcessor{

	public void processConfigBeanDefinitions(BeanDefinitionRegistry registry) { //registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory]; root of factory hierarchy;
				......

			parser.parse(candidates); //4.1 解析候选的BeanDefinition 为 Configuration Class

			"(13) 解析"

			"4.1 解析候选的BeanDefinition 为 Configuration Class"

				......
	}

}

代码块14：parse

解析

package org.springframework.context.annotation;

public class ConfigurationClassParser {

	public void parse(Set configCandidates) {
				......

					parse(((AnnotatedBeanDefinition) bd).getmetadata(), holder.getBeanName()); //其实内部调用都是processConfigurationClass进行解析的

					"(14) 解析"

					"参数：beanName=demoApplication"

					"其实内部调用都是processConfigurationClass进行解析的"

				......
	}

}

代码块15：parse

处理配置类

参数：beanName=demoApplication

package org.springframework.context.annotation;

public class ConfigurationClassParser {

	protected final void parse(Annotationmetadata metadata, String beanName) throws IOException { //beanName=demoApplication;

		processConfigurationClass(new ConfigurationClass(metadata, beanName)); //把我们的配置类源信息和beanName包装成一个ConfigurationClass对象

		"(15) 处理配置类"

		"参数：configClass=ConfigurationClass: beanName 'demoApplication', com.example.DemoApplication"

		"把我们的配置类源信息和beanName包装成一个ConfigurationClass对象"

	}

}

代码块16：processConfigurationClass

处理配置类

参数：configClass=ConfigurationClass: beanName ‘demoApplication’, com.example.DemoApplication

package org.springframework.context.annotation;

public class ConfigurationClassParser {

	protected void processConfigurationClass(ConfigurationClass configClass) throws IOException { //configClass=ConfigurationClass: beanName 'demoApplication', com.example.DemoApplication;
				......

			sourceClass = doProcessConfigurationClass(configClass, sourceClass); //【真正解析配置类】

			"(16) 处理配置类"

			"参数：sourceClass=com.example.DemoApplication"
			"参数：configClass=ConfigurationClass: beanName 'demoApplication', com.example.DemoApplication"

			"【真正解析配置类】"

				......
	}

}

代码块17：doProcessConfigurationClass

处理配置类的@import注解

参数：sourceClass=com.example.DemoApplication

参数：configClass=ConfigurationClass: beanName ‘demoApplication’, com.example.DemoApplication

package org.springframework.context.annotation;

public class ConfigurationClassParser {

	@Nullable
	protected final SourceClass doProcessConfigurationClass(ConfigurationClass configClass, SourceClass sourceClass) //sourceClass=com.example.DemoApplication;configClass=ConfigurationClass: beanName 'demoApplication', com.example.DemoApplication;
			throws IOException {
				......

		processimports(configClass, sourceClass, getimports(sourceClass), true); //处理@import注解 	configClass=ConfigurationClass: beanName 'demoApplication', com.example.DemoApplication; sourceClass=com.example.DemoApplication; 

		"(17) 处理配置类的@import注解"

		"参数：sourceClass=com.example.DemoApplication"

		"处理@import注解 	configClass=ConfigurationClass: beanName 'demoApplication', com.example.DemoApplication; sourceClass=com.example.DemoApplication;"

				......
	}

}

代码块18：getimports

收集import配置类

参数：sourceClass=com.example.DemoApplication

package org.springframework.context.annotation;

public class ConfigurationClassParser {

	private Set getimports(SourceClass sourceClass) throws IOException { //sourceClass=com.example.DemoApplication;
				......

		collectimports(sourceClass, imports, visited); //1.处理解析类中的@import 	sourceClass=com.example.DemoApplication; 

		"(18) 收集import配置类"

		"参数：sourceClass=com.example.DemoApplication"

		"1.处理解析类中的@import 	sourceClass=com.example.DemoApplication;"

				......
	}

}

代码块19：collectimports

收集import配置类

参数：sourceClass=com.example.DemoApplication

package org.springframework.context.annotation;

public class ConfigurationClassParser {

	private void collectimports(SourceClass sourceClass, Set imports, Set visited) //sourceClass=com.example.DemoApplication;
			throws IOException {
				......

					collectimports(annotation, imports, visited); //进行递归，比如 @Enable*** 	annotation=org.springframework.boot.autoconfigure.SpringBootApplication; annotation=org.mybatis.spring.annotation.MapperScan; 

					"(19) 收集import配置类"

					"参数：sourceClass=org.mybatis.spring.annotation.MapperScan"

					"进行递归，比如 @Enable*** 	annotation=org.springframework.boot.autoconfigure.SpringBootApplication; annotation=org.mybatis.spring.annotation.MapperScan;"

				......
	}

}

代码块20：collectimports

获取注解属性

参数：sourceClass=org.mybatis.spring.annotation.MapperScan

package org.springframework.context.annotation;

public class ConfigurationClassParser {

	private void collectimports(SourceClass sourceClass, Set imports, Set visited) //sourceClass=org.mybatis.spring.annotation.MapperScan;
			throws IOException {
				......

			imports.addAll(sourceClass.getAnnotationAttributes(import.class.getName(), "value")); //收集所有的导入配置类

			"(20) 获取注解属性@import(MapperScannerRegistrar.class)"

			"参数：attribute=value"
			"参数：annType=org.springframework.context.annotation.import"

			"收集所有的导入配置类"

				......
	}

}

代码块21：getAnnotationAttributes

获取MapperScannerRegistrar的完整包名类名

参数：attribute=value

参数：annType=org.springframework.context.annotation.import

package org.springframework.context.annotation;

public class ConfigurationClassParser {

		public Collection getAnnotationAttributes(String annType, String attribute) throws IOException { //attribute=value;annType=org.springframework.context.annotation.import;
				......

			String[] classNames = (String[]) annotationAttributes.get(attribute); //获取属性获取 ClassName  简单说获取的就是 importBean 的全限定类名 	classNames=org.mybatis.spring.annotation.MapperScannerRegistrar,; 

			"(21) 获取MapperScannerRegistrar的完整包名类名"

			"获取属性获取 ClassName  简单说获取的就是 importBean 的全限定类名 	classNames=org.mybatis.spring.annotation.MapperScannerRegistrar,;"

				......
		}

}

小结：调用栈

收集启动类的@MapperScan注解对应的import类

springboot原理.springboot原理
SpringApplication.run()
SpringApplication.run()
SpringApplication.run()
SpringApplication.refreshContext()
SpringApplication.refresh()
ServletWebServerApplicationContext.refresh()
AbstractApplicationContext.refresh()
AbstractApplicationContext.invokeBeanFactoryPostProcessors()
PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors()
PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors()
ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry()
ConfigurationClassPostProcessor.processConfigBeanDefinitions()
ConfigurationClassParser.parse()
ConfigurationClassParser.parse()
ConfigurationClassParser.processConfigurationClass()
ConfigurationClassParser.doProcessConfigurationClass()
ConfigurationClassParser.getimports()
ConfigurationClassParser.collectimports()
ConfigurationClassParser.collectimports()
ConfigurationClassParser$SourceClass.getAnnotationAttributes()

调用MapperScannerRegistrar的注册bean定义方法，收集候选组件将断点打到ClassPathScanningCandidateComponentProvider.scanCandidateComponents方法,则代码执行过程如下代码块22：processConfigBeanDefinitions

加载Bean定义

参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframew…

package org.springframework.context.annotation;

public class ConfigurationClassPostProcessor implements BeanDefinitionRegistryPostProcessor{

	public void processConfigBeanDefinitions(BeanDefinitionRegistry registry) { //registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory]; root of factory hierarchy;
				......
			parser.parse(candidates);
			"(13)"


			this.reader.loadBeanDefinitions(configClasses); //4.3 加载Configuration Class

			"(22) 加载Bean定义"

			"4.3 加载Configuration Class"

				......
	}

}

代码块23：loadBeanDefinitions

加载Configuration类的Bean定义

package org.springframework.context.annotation;

public class ConfigurationClassBeanDefinitionReader {

	public void loadBeanDefinitions(Set configurationModel) {
				......

			loadBeanDefinitionsForConfigurationClass(configClass, trackedConditionevaluator); //调用这个方法完成的加载 	configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.servlet.MultipartAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/web/servlet/MultipartAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.servlet.HttpEncodingAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/web/servlet/HttpEncodingAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.embedded.EmbeddedWebServerFactoryCustomizerAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/web/embedded/EmbeddedWebServerFactoryCustomizerAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.embedded.EmbeddedWebServerFactoryCustomizerAutoConfiguration$TomcatWebServerFactoryCustomizerConfiguration', class path resource [org/springframework/boot/autoconfigure/web/embedded/EmbeddedWebServerFactoryCustomizerAutoConfiguration$TomcatWebServerFactoryCustomizerConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.client.RestTemplateAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/web/client/RestTemplateAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration$TransactionTemplateConfiguration', class path resource [org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration$TransactionTemplateConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration$EnableTransactionManagementConfiguration', class path resource [org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration$EnableTransactionManagementConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration$EnableTransactionManagementConfiguration$CglibAutoProxyConfiguration', class path resource [org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration$EnableTransactionManagementConfiguration$CglibAutoProxyConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration', class path resource [org/springframework/transaction/annotation/ProxyTransactionManagementConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceTransactionManagerAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration$DataSourceTransactionManagerConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceTransactionManagerAutoConfiguration$DataSourceTransactionManagerConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.task.TaskSchedulingAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/task/TaskSchedulingAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/JdbcTemplateAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration$NamedParameterJdbcTemplateConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/JdbcTemplateAutoConfiguration$NamedParameterJdbcTemplateConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration$JdbcTemplateConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/JdbcTemplateAutoConfiguration$JdbcTemplateConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.info.ProjectInfoAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/info/ProjectInfoAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/http/codec/CodecsAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration$JacksonCodecConfiguration', class path resource [org/springframework/boot/autoconfigure/http/codec/CodecsAutoConfiguration$JacksonCodecConfiguration.class]; 

			"(23) 加载Configuration类的Bean定义"

			"参数：configClass=ConfigurationClass: beanName 'demoApplication', com.example.DemoApplication"

			"调用这个方法完成的加载 	configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.servlet.MultipartAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/web/servlet/MultipartAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.servlet.HttpEncodingAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/web/servlet/HttpEncodingAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.embedded.EmbeddedWebServerFactoryCustomizerAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/web/embedded/EmbeddedWebServerFactoryCustomizerAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.embedded.EmbeddedWebServerFactoryCustomizerAutoConfiguration$TomcatWebServerFactoryCustomizerConfiguration', class path resource [org/springframework/boot/autoconfigure/web/embedded/EmbeddedWebServerFactoryCustomizerAutoConfiguration$TomcatWebServerFactoryCustomizerConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.web.client.RestTemplateAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/web/client/RestTemplateAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration$TransactionTemplateConfiguration', class path resource [org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration$TransactionTemplateConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration$EnableTransactionManagementConfiguration', class path resource [org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration$EnableTransactionManagementConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration$EnableTransactionManagementConfiguration$CglibAutoProxyConfiguration', class path resource [org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration$EnableTransactionManagementConfiguration$CglibAutoProxyConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration', class path resource [org/springframework/transaction/annotation/ProxyTransactionManagementConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceTransactionManagerAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration$DataSourceTransactionManagerConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceTransactionManagerAutoConfiguration$DataSourceTransactionManagerConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.task.TaskSchedulingAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/task/TaskSchedulingAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/JdbcTemplateAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration$NamedParameterJdbcTemplateConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/JdbcTemplateAutoConfiguration$NamedParameterJdbcTemplateConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration$JdbcTemplateConfiguration', class path resource [org/springframework/boot/autoconfigure/jdbc/JdbcTemplateAutoConfiguration$JdbcTemplateConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.info.ProjectInfoAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/info/ProjectInfoAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration', class path resource [org/springframework/boot/autoconfigure/http/codec/CodecsAutoConfiguration.class]; configClass=ConfigurationClass: beanName 'org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration$JacksonCodecConfiguration', class path resource [org/springframework/boot/autoconfigure/http/codec/CodecsAutoConfiguration$JacksonCodecConfiguration.class];"

				......
	}

}

代码块24：loadBeanDefinitionsForConfigurationClass

从注册器加载Bean定义

参数：configClass=ConfigurationClass: beanName ‘demoApplication’, com.example.DemoApplication

package org.springframework.context.annotation;

public class ConfigurationClassBeanDefinitionReader {

	private void loadBeanDefinitionsForConfigurationClass( //configClass=ConfigurationClass: beanName 'demoApplication', com.example.DemoApplication;
			ConfigurationClass configClass, TrackedConditionevaluator trackedConditionevaluator) {
				......

		loadBeanDefinitionsFromRegistrars(configClass.getimportBeanDefinitionRegistrars()); //处理importBeanDefinitionRegistrar

		"(24) 从注册器加载Bean定义"

		"参数：registrars=org.mybatis.spring.annotation.MapperScannerRegistrar@16eccb2e=org.springframework.core.type.StandardAnnotationmetadata@11ce2e22;org.springframework.boot.autoconfigure.AutoConfigurationPackages$Registrar@5ef5c734=org.springframework.core.type.StandardAnnotationmetadata@11ce2e22;"

		"处理importBeanDefinitionRegistrar"

	}

}

代码块25：loadBeanDefinitionsFromRegistrars

注册Bean定义

参数：registrars=org.mybatis.spring.annotation.MapperScannerRegistrar@16eccb2e=org.springframework.core.type.StandardAnnotatio…

package org.springframework.context.annotation;

public class ConfigurationClassBeanDefinitionReader {

	private void loadBeanDefinitionsFromRegistrars(Map registrars) { //registrars=org.mybatis.spring.annotation.MapperScannerRegistrar@16eccb2e=org.springframework.core.type.StandardAnnotationmetadata@11ce2e22;org.springframework.boot.autoconfigure.AutoConfigurationPackages$Registrar@5ef5c734=org.springframework.core.type.StandardAnnotationmetadata@11ce2e22;;

		registrars.forEach((registrar, metadata) ->

		"(25) 注册Bean定义"

		"参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService]; root of factory hierarchy"

				......
	}

}

代码块26：registerBeanDefinitions

执行扫描

参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframew…

package org.mybatis.spring.annotation;

public class MapperScannerRegistrar implements importBeanDefinitionRegistrar{

  @Override
  public void registerBeanDefinitions(Annotationmetadata importingClassmetadata, BeanDefinitionRegistry registry) { //registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService]; root of factory hierarchy;
				......

    scanner.doScan(StringUtils.toStringArray(basePackages)); //主要解析工作了

    "(26) 执行扫描"

    "参数：basePackages=com.example.mapper,"

    "主要解析工作了"

  }

}

代码块27：doScan

执行扫描

参数：basePackages=com.example.mapper,

package org.mybatis.spring.mapper;

public class ClassPathMapperScanner extends ClassPathBeanDefinitionScanner{

  @Override
  public Set doScan(String... basePackages) { //basePackages=com.example.mapper,;

    Set beanDefinitions = super.doScan(basePackages); //调用 ClassPathBeanDefinitionScanner#doScan 方法

    "(27) 执行扫描"

    "参数：basePackages=com.example.mapper,"

    "调用 ClassPathBeanDefinitionScanner#doScan 方法"

				......
  }

}

代码块28：doScan

查找候选组件

参数：basePackages=com.example.mapper,

package org.springframework.context.annotation;

public class ClassPathBeanDefinitionScanner extends ClassPathScanningCandidateComponentProvider{

	protected Set doScan(String... basePackages) { //basePackages=com.example.mapper,;
				......

			Set candidates = findCandidateComponents(basePackage); //2.扫描basePackage，将符合要求的bean定义全部找出来（这边符合要求最常见的就是使用Component注解）

			"(28) 查找候选组件"

			"参数：basePackage=com.example.mapper"

			"2.扫描basePackage，将符合要求的bean定义全部找出来（这边符合要求最常见的就是使用Component注解）"

				......
	}

}

代码块29：findCandidateComponents

扫描候选组件

参数：basePackage=com.example.mapper

package org.springframework.context.annotation;

public class ClassPathScanningCandidateComponentProvider implements EnvironmentCapable{

	public Set findCandidateComponents(String basePackage) { //basePackage=com.example.mapper;
				......

			return scanCandidateComponents(basePackage); //这里是关键

			"(29) 扫描候选组件"

			"参数：basePackage=com.example.mapper"

			"这里是关键"

				......
	}

}

代码块30：scanCandidateComponents

将扫描到的bean定义添加到候选组件

参数：basePackage=com.example.mapper

package org.springframework.context.annotation;

public class ClassPathScanningCandidateComponentProvider implements EnvironmentCapable{

	private Set scanCandidateComponents(String basePackage) { //basePackage=com.example.mapper;
				......

								candidates.add(sbd); //7.确定是候选类，则添加到candidates 	sbd=Generic bean: class [com.example.mapper.UserMapper]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class]; 

								"(30) 将扫描到的bean定义添加到候选组件"

								"7.确定是候选类，则添加到candidates 	sbd=Generic bean: class [com.example.mapper.UserMapper]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class];"

				......
	}

}

小结：调用栈

调用MapperScannerRegistrar的注册bean定义方法，收集候选组件

springboot原理.springboot原理
SpringApplication.run()
SpringApplication.run()
SpringApplication.run()
SpringApplication.refreshContext()
SpringApplication.refresh()
ServletWebServerApplicationContext.refresh()
AbstractApplicationContext.refresh()
AbstractApplicationContext.invokeBeanFactoryPostProcessors()
PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors()
PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors()
ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry()
ConfigurationClassPostProcessor.processConfigBeanDefinitions()
ConfigurationClassBeanDefinitionReader.loadBeanDefinitions()
ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass()
ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsFromRegistrars()
MapperScannerRegistrar.registerBeanDefinitions()
ClassPathMapperScanner.doScan()
ClassPathBeanDefinitionScanner.doScan()
ClassPathScanningCandidateComponentProvider.findCandidateComponents()
ClassPathScanningCandidateComponentProvider.scanCandidateComponents()

注册bean定义将断点打到DefaultListableBeanFactory.registerBeanDefinition方法,则代码执行过程如下代码块31：doScan

注册Bean定义

参数：basePackages=com.example.mapper,

package org.springframework.context.annotation;

public class ClassPathBeanDefinitionScanner extends ClassPathScanningCandidateComponentProvider{

	protected Set doScan(String... basePackages) { //basePackages=com.example.mapper,;
				......
			Set candidates = findCandidateComponents(basePackage);
			"(28)"


					registerBeanDefinition(definitionHolder, this.registry); //11.注册BeanDefinition（注册到beanDefinitionMap、beanDefinitionNames、aliasMap缓存） 	definitionHolder=Bean definition with name 'userMapper': Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class]; 

					"(31) 注册Bean定义"

					"参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService]; root of factory hierarchy"
					"参数：definitionHolder=Bean definition with name 'userMapper': Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class]"

					"11.注册BeanDefinition（注册到beanDefinitionMap、beanDefinitionNames、aliasMap缓存） 	definitionHolder=Bean definition with name 'userMapper': Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class];"

				......
	}

}

代码块32：registerBeanDefinition

注册Bean定义

参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframew…

参数：definitionHolder=Bean definition with name ‘userMapper’: Generic bean: class [com.example.mapper.UserMapper]; scope=sing…

package org.springframework.context.annotation;

public class ClassPathBeanDefinitionScanner extends ClassPathScanningCandidateComponentProvider{

	protected void registerBeanDefinition(BeanDefinitionHolder definitionHolder, BeanDefinitionRegistry registry) { //registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService]; root of factory hierarchy;definitionHolder=Bean definition with name 'userMapper': Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class];

		BeanDefinitionReaderUtils.registerBeanDefinition(definitionHolder, registry); //调用BeanDefinitionReaderUtils工具类来完成BeanDefinition的注册 	definitionHolder=Bean definition with name 'userMapper': Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class]; registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper]; root of factory hierarchy; 

		"(32) 注册Bean定义"

		"参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService]; root of factory hierarchy"
		"参数：definitionHolder=Bean definition with name 'userMapper': Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class]"

		"调用BeanDefinitionReaderUtils工具类来完成BeanDefinition的注册 	definitionHolder=Bean definition with name 'userMapper': Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class]; registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService,userMapper]; root of factory hierarchy;"

	}

}

代码块33：registerBeanDefinition

注册Bean定义

参数：registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframew…

参数：definitionHolder=Bean definition with name ‘userMapper’: Generic bean: class [com.example.mapper.UserMapper]; scope=sing…

package org.springframework.beans.factory.support;

public class BeanDefinitionReaderUtils {

	public static void registerBeanDefinition( //registry=org.springframework.beans.factory.support.DefaultListableBeanFactory@73e9cf30: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,demoApplication,org.springframework.boot.autoconfigure.internalCachingmetadataReaderFactory,userController,userService]; root of factory hierarchy;definitionHolder=Bean definition with name 'userMapper': Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class];
			BeanDefinitionHolder definitionHolder, BeanDefinitionRegistry registry)
			throws BeanDefinitionStoreException {
				......

		registry.registerBeanDefinition(beanName, definitionHolder.getBeanDefinition()); //2.注册beanName、BeanDefinition到缓存中（核心逻辑）,实现类为; DefaultListableBeanFactory 	beanName=userMapper; 

		"(33) 注册Bean定义"

		"参数：beanDefinition=Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class]"
		"参数：beanName=userMapper"

		"2.注册beanName、BeanDefinition到缓存中（核心逻辑）,实现类为; DefaultListableBeanFactory 	beanName=userMapper;"

				......
	}

}

代码块34：registerBeanDefinition

将userMapper的bean定义存入缓存

参数：beanDefinition=Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; aut…

参数：beanName=userMapper

package org.springframework.beans.factory.support;

public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFactory implements ConfigurableListableBeanFactory{

	@Override
	public void registerBeanDefinition(String beanName, BeanDefinition beanDefinition) //beanDefinition=Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class];beanName=userMapper;
			throws BeanDefinitionStoreException {
				......

					this.beanDefinitionMap.put(beanName, beanDefinition); //将本次传进来的beanName 和 BeanDefinition映射放入beanDefinitionMap缓存 	beanName=userMapper; beanDefinition=Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class]; 

					"(34) 将userMapper的bean定义存入缓存"

					"将本次传进来的beanName 和 BeanDefinition映射放入beanDefinitionMap缓存 	beanName=userMapper; beanDefinition=Generic bean: class [com.example.mapper.UserMapper]; scope=singleton; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:projectSpringboot_MybatistargetclassescomexamplemapperUserMapper.class];"

				......
	}

}

小结：调用栈

注册bean定义

springboot原理.springboot原理
SpringApplication.run()
SpringApplication.run()
SpringApplication.run()
SpringApplication.refreshContext()
SpringApplication.refresh()
ServletWebServerApplicationContext.refresh()
AbstractApplicationContext.refresh()
AbstractApplicationContext.invokeBeanFactoryPostProcessors()
PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors()
PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors()
ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry()
ConfigurationClassPostProcessor.processConfigBeanDefinitions()
ConfigurationClassBeanDefinitionReader.loadBeanDefinitions()
ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass()
ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsFromRegistrars()
MapperScannerRegistrar.registerBeanDefinitions()
ClassPathMapperScanner.doScan()
ClassPathBeanDefinitionScanner.doScan()
ClassPathBeanDefinitionScanner.registerBeanDefinition()
BeanDefinitionReaderUtils.registerBeanDefinition()
DefaultListableBeanFactory.registerBeanDefinition()

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原文地址: https://outofmemory.cn/zaji/5696773.html

在线记录源码调试之@MapperScan源码分析(一)注册userMapper的bean定义

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