一、引导加载自动配置类——@SpringBootApplication

1.1 @SpringBootConfiguration注解分析

1.2 @ComponentScan

1.3 @EnableAutoConfiguration

1.3.1 @AutoConfigurationPackage——自动配置包，指定了默认的包规则

1.3.2 @Import({AutoConfigurationImportSelector.class})

二、定制化修改自动配置

三、使用spring boot的最佳实践

3.1 查看当前spring中加载了哪些组件

3.2 例子——修改启动banner图案

一、引导加载自动配置类——@SpringBootApplication

自动装配的核心注解：@SpringBootApplication

@SpringBootApplication由

@SpringBootConfiguration
@EnableAutoConfiguration
@ComponentScan

三个核心注解组成。

@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@SpringBootConfiguration
@EnableAutoConfiguration
@ComponentScan(
    excludeFilters = {@Filter(
    type = FilterType.CUSTOM,
    classes = {TypeExcludeFilter.class}
), @Filter(
    type = FilterType.CUSTOM,
    classes = {AutoConfigurationExcludeFilter.class}
)}
)
public @interface SpringBootApplication {}

1.1 @SpringBootConfiguration注解分析

该注解的源码

@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Configuration
public @interface SpringBootConfiguration {
    @AliasFor(
        annotation = Configuration.class
    )
    boolean proxyBeanMethods() default true;
}

可以看到，里面只有一个configuration。@Configuration代表当前是一个配置类。

1.2 @ComponentScan

指定扫描那些范围

1.3 @EnableAutoConfiguration

@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@AutoConfigurationPackage
@Import({AutoConfigurationImportSelector.class})
public @interface EnableAutoConfiguration {
    String ENABLED_OVERRIDE_PROPERTY = "spring.boot.enableautoconfiguration";

    Class<?>[] exclude() default {};

    String[] excludeName() default {};
}

1.3.1 @AutoConfigurationPackage——自动配置包，指定了默认的包规则

@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@Import({Registrar.class})
public @interface AutoConfigurationPackage {
    String[] basePackages() default {};

    Class<?>[] basePackageClasses() default {};
}

他的核心是Import注解，通过Import注解为容器导入组件Register.class。Register用于为容器批量导入组件，源码如下：

    static class Registrar implements ImportBeanDefinitionRegistrar, DeterminableImports {
        Registrar() {
        }

        public void registerBeanDefinitions(AnnotationMetadata metadata, BeanDefinitionRegistry registry) {
            AutoConfigurationPackages.register(registry, (String[])(new AutoConfigurationPackages.PackageImports(metadata)).getPackageNames().toArray(new String[0]));
        }

        public Set<Object> determineImports(AnnotationMetadata metadata) {
            return Collections.singleton(new AutoConfigurationPackages.PackageImports(metadata));
        }
    }

通过源码分析，传入的参数

(String[])(new AutoConfigurationPackages.PackageImports(metadata)).getPackageNames().toArray(new String[0])

是为我们的包名

因此，@AutoConfigurationPackage的作用是将main程序下的所有组件导入到容器中。

1.3.2 @Import({AutoConfigurationImportSelector.class})

进入 AutoConfigurationImportSelector 类中，可以看到一个方法 selectImports

里面的核心是

1. 利用getAutoConfigurationEntry(annotationMetadata)为容器中批量导入组件，他里面的核心的步骤2
2. 利用 getCandidateConf igurations( annotationMetadata, attributes ) 为容器导入组件
3. 而 getCandidateConf igurations( annotationMetadata, attributes )是怎么确定加载哪些组件的讷？查看源码可知，内部使用 SpringFactoriesLoader（即spring的工厂加载器）

4. 进入源码可知，最终是利用方法loadSpringFactories 加载所有组件。至于从哪里加载的组件，只要能看懂这个方法就能知道了。
5. 观察第四步的方法，发现加载的组件路径为 META-INF/spring.factories 通过查看jar包中的相关文件spring-boot-autoconfigure-2.3.4.RELEASE.jar/META-INF/spring.factories，可知文件里面写死了spring- boo t一启动就要给容器中加载的所有配置类。
6. 虽然这127个写死的组件会全部加载，但是最终会按需配置。比如下图中的aop，他又一个注解叫@ConditionOnClass（即按需装配），也就是说他是有条件配置的。

因此，spring boot的核心为：启动加载所有组件，但是会根据条件装配，最终按需配置

二、定制化修改自动配置

@ConditionalOnMissingBean——没有这个组件时，spring才会给你配置组件。如果用户配置了，那么就使用用户的

总结:
● SpringBoot先加载所有的自动配置类xxxxAutoConfiguration
● 每个自动;配置类按照条件进行生效，默认都会绑定配置文件指定的值。xxxProperties里面拿。 xxxProperties和配置文件进行了绑定
● 生效的配置类就会给容器中装配很多组件
● 只要容器中有这些组件，相当于这些功能就有了
● 定制化配置
用户直接自己@Bean替换底层的组件
用户看这个组件是获取的配置文件什么值就去修改。
xxxxxAutoConfiguration --->组件---> xxxProperties里面拿值---> application.properties

三、使用spring boot的最佳实践

1. 引入场景依赖

https://docs.spring.io/spring-boot/docs/current/reference/html/using.html#using.build-systems.starters

2. 查看自动配置了哪些

自己分析，引入场景对应的自动配置- 般都生效了
配置文件中debug=true开启自动配置报告。 Negative (不生效) \Positive (生效)

3. 是否需要定制化

参照文档修改配置项
- - - - https://docs.spring.io/spring-boot/docs/current/reference/html/using.html#using.auto-configuration
- - - - 自己分析。xxxxProperties绑定了配置文件的哪些。
自定义加入或者替换组件 —— @Bean、@Component

3.1 查看当前spring中加载了哪些组件

当在配置文件中配置

debug=true

时，启动spring，会在后台打印出spring加载的各个组件哪些生效了，哪些没有生效。如下：


  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.3.4.RELEASE)

2021-06-10 11:00:12.135  INFO 3660 --- [           main] hellospring.MainApplication              : Starting MainApplication on 女王大人的爱宠 with PID 3660 (D:\workspace\日常代码练习\spring-boot-study\java\target\classes started by 王小闹儿的爱宠 in D:\workspace\日常代码练习\spring-boot-study\java)
2021-06-10 11:00:12.136  INFO 3660 --- [           main] hellospring.MainApplication              : No active profile set, falling back to default profiles: default
2021-06-10 11:00:12.137 DEBUG 3660 --- [           main] o.s.boot.SpringApplication               : Loading source class hellospring.MainApplication
2021-06-10 11:00:12.211 DEBUG 3660 --- [           main] o.s.b.c.c.ConfigFileApplicationListener  : Loaded config file 'file:/D:/workspace/%e6%97%a5%e5%b8%b8%e4%bb%a3%e7%a0%81%e7%bb%83%e4%b9%a0/spring-boot-study/java/target/classes/application.properties' (classpath:/application.properties)
2021-06-10 11:00:12.212 DEBUG 3660 --- [           main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@6ca18a14
2021-06-10 11:00:13.501 DEBUG 3660 --- [           main] .s.b.w.e.t.TomcatServletWebServerFactory : Code archive: C:\Users\王小闹儿的爱宠\.m2\repository\org\springframework\boot\spring-boot\2.3.4.RELEASE\spring-boot-2.3.4.RELEASE.jar
2021-06-10 11:00:13.503 DEBUG 3660 --- [           main] .s.b.w.e.t.TomcatServletWebServerFactory : Code archive: C:\Users\王小闹儿的爱宠\.m2\repository\org\springframework\boot\spring-boot\2.3.4.RELEASE\spring-boot-2.3.4.RELEASE.jar
2021-06-10 11:00:13.505 DEBUG 3660 --- [           main] .s.b.w.e.t.TomcatServletWebServerFactory : None of the document roots [src/main/webapp, public, static] point to a directory and will be ignored.
2021-06-10 11:00:13.560  INFO 3660 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2021-06-10 11:00:13.581  INFO 3660 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2021-06-10 11:00:13.581  INFO 3660 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.38]
2021-06-10 11:00:13.762  INFO 3660 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2021-06-10 11:00:13.762 DEBUG 3660 --- [           main] w.s.c.ServletWebServerApplicationContext : Published root WebApplicationContext as ServletContext attribute with name [org.springframework.web.context.WebApplicationContext.ROOT]
2021-06-10 11:00:13.763  INFO 3660 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1551 ms
2021-06-10 11:00:13.789 DEBUG 3660 --- [           main] o.s.b.w.s.ServletContextInitializerBeans : Mapping filters: characterEncodingFilter urls=[/*] order=-2147483648, formContentFilter urls=[/*] order=-9900, requestContextFilter urls=[/*] order=-105
2021-06-10 11:00:13.790 DEBUG 3660 --- [           main] o.s.b.w.s.ServletContextInitializerBeans : Mapping servlets: dispatcherServlet urls=[/]
2021-06-10 11:00:13.822 DEBUG 3660 --- [           main] o.s.b.w.s.f.OrderedRequestContextFilter  : Filter 'requestContextFilter' configured for use
2021-06-10 11:00:13.823 DEBUG 3660 --- [           main] s.b.w.s.f.OrderedCharacterEncodingFilter : Filter 'characterEncodingFilter' configured for use
2021-06-10 11:00:13.823 DEBUG 3660 --- [           main] o.s.b.w.s.f.OrderedFormContentFilter     : Filter 'formContentFilter' configured for use
2021-06-10 11:00:14.043  INFO 3660 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2021-06-10 11:00:14.057 DEBUG 3660 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : ControllerAdvice beans: 0 @ModelAttribute, 0 @InitBinder, 1 RequestBodyAdvice, 1 ResponseBodyAdvice
2021-06-10 11:00:14.134 DEBUG 3660 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : 4 mappings in 'requestMappingHandlerMapping'
2021-06-10 11:00:14.173 DEBUG 3660 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Patterns [/webjars/**, /**] in 'resourceHandlerMapping'
2021-06-10 11:00:14.184 DEBUG 3660 --- [           main] .m.m.a.ExceptionHandlerExceptionResolver : ControllerAdvice beans: 0 @ExceptionHandler, 1 ResponseBodyAdvice
2021-06-10 11:00:14.234 DEBUG 3660 --- [           main] inMXBeanRegistrar$SpringApplicationAdmin : Application Admin MBean registered with name 'org.springframework.boot:type=Admin,name=SpringApplication'
2021-06-10 11:00:14.324  INFO 3660 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2021-06-10 11:00:14.381 DEBUG 3660 --- [           main] ConditionEvaluationReportLoggingListener : 


============================
CONDITIONS EVALUATION REPORT
============================


Positive matches:
-----------------

   AopAutoConfiguration matched:
      - @ConditionalOnProperty (spring.aop.auto=true) matched (OnPropertyCondition)

   AopAutoConfiguration.ClassProxyingConfiguration matched:
      - @ConditionalOnMissingClass did not find unwanted class 'org.aspectj.weaver.Advice' (OnClassCondition)
      - @ConditionalOnProperty (spring.aop.proxy-target-class=true) matched (OnPropertyCondition)

   DispatcherServletAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.web.servlet.DispatcherServlet' (OnClassCondition)
      - found 'session' scope (OnWebApplicationCondition)

   DispatcherServletAutoConfiguration.DispatcherServletConfiguration matched:
      - @ConditionalOnClass found required class 'javax.servlet.ServletRegistration' (OnClassCondition)
      - Default DispatcherServlet did not find dispatcher servlet beans (DispatcherServletAutoConfiguration.DefaultDispatcherServletCondition)

   DispatcherServletAutoConfiguration.DispatcherServletRegistrationConfiguration matched:
      - @ConditionalOnClass found required class 'javax.servlet.ServletRegistration' (OnClassCondition)
      - DispatcherServlet Registration did not find servlet registration bean (DispatcherServletAutoConfiguration.DispatcherServletRegistrationCondition)

   DispatcherServletAutoConfiguration.DispatcherServletRegistrationConfiguration#dispatcherServletRegistration matched:
      - @ConditionalOnBean (names: dispatcherServlet types: org.springframework.web.servlet.DispatcherServlet; SearchStrategy: all) found bean 'dispatcherServlet' (OnBeanCondition)

   EmbeddedWebServerFactoryCustomizerAutoConfiguration matched:
      - @ConditionalOnWebApplication (required) found 'session' scope (OnWebApplicationCondition)

   EmbeddedWebServerFactoryCustomizerAutoConfiguration.TomcatWebServerFactoryCustomizerConfiguration matched:
      - @ConditionalOnClass found required classes 'org.apache.catalina.startup.Tomcat', 'org.apache.coyote.UpgradeProtocol' (OnClassCondition)

   ErrorMvcAutoConfiguration matched:
      - @ConditionalOnClass found required classes 'javax.servlet.Servlet', 'org.springframework.web.servlet.DispatcherServlet' (OnClassCondition)
      - found 'session' scope (OnWebApplicationCondition)

   ErrorMvcAutoConfiguration#basicErrorController matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.web.servlet.error.ErrorController; SearchStrategy: current) did not find any beans (OnBeanCondition)

   ErrorMvcAutoConfiguration#errorAttributes matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.web.servlet.error.ErrorAttributes; SearchStrategy: current) did not find any beans (OnBeanCondition)

   ErrorMvcAutoConfiguration.DefaultErrorViewResolverConfiguration#conventionErrorViewResolver matched:
      - @ConditionalOnBean (types: org.springframework.web.servlet.DispatcherServlet; SearchStrategy: all) found bean 'dispatcherServlet'; @ConditionalOnMissingBean (types: org.springframework.boot.autoconfigure.web.servlet.error.ErrorViewResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   ErrorMvcAutoConfiguration.WhitelabelErrorViewConfiguration matched:
      - @ConditionalOnProperty (server.error.whitelabel.enabled) matched (OnPropertyCondition)
      - ErrorTemplate Missing did not find error template view (ErrorMvcAutoConfiguration.ErrorTemplateMissingCondition)

   ErrorMvcAutoConfiguration.WhitelabelErrorViewConfiguration#beanNameViewResolver matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.BeanNameViewResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   ErrorMvcAutoConfiguration.WhitelabelErrorViewConfiguration#defaultErrorView matched:
      - @ConditionalOnMissingBean (names: error; SearchStrategy: all) did not find any beans (OnBeanCondition)

   GenericCacheConfiguration matched:
      - Cache org.springframework.boot.autoconfigure.cache.GenericCacheConfiguration automatic cache type (CacheCondition)

   HttpEncodingAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.web.filter.CharacterEncodingFilter' (OnClassCondition)
      - found 'session' scope (OnWebApplicationCondition)
      - @ConditionalOnProperty (server.servlet.encoding.enabled) matched (OnPropertyCondition)

   HttpEncodingAutoConfiguration#characterEncodingFilter matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.filter.CharacterEncodingFilter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   HttpMessageConvertersAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.http.converter.HttpMessageConverter' (OnClassCondition)
      - NoneNestedConditions 0 matched 1 did not; NestedCondition on HttpMessageConvertersAutoConfiguration.NotReactiveWebApplicationCondition.ReactiveWebApplication did not find reactive web application classes (HttpMessageConvertersAutoConfiguration.NotReactiveWebApplicationCondition)

   HttpMessageConvertersAutoConfiguration#messageConverters matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.autoconfigure.http.HttpMessageConverters; SearchStrategy: all) did not find any beans (OnBeanCondition)

   HttpMessageConvertersAutoConfiguration.StringHttpMessageConverterConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.http.converter.StringHttpMessageConverter' (OnClassCondition)

   HttpMessageConvertersAutoConfiguration.StringHttpMessageConverterConfiguration#stringHttpMessageConverter matched:
      - @ConditionalOnMissingBean (types: org.springframework.http.converter.StringHttpMessageConverter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JacksonAutoConfiguration matched:
      - @ConditionalOnClass found required class 'com.fasterxml.jackson.databind.ObjectMapper' (OnClassCondition)

   JacksonAutoConfiguration.Jackson2ObjectMapperBuilderCustomizerConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.http.converter.json.Jackson2ObjectMapperBuilder' (OnClassCondition)

   JacksonAutoConfiguration.JacksonObjectMapperBuilderConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.http.converter.json.Jackson2ObjectMapperBuilder' (OnClassCondition)

   JacksonAutoConfiguration.JacksonObjectMapperBuilderConfiguration#jacksonObjectMapperBuilder matched:
      - @ConditionalOnMissingBean (types: org.springframework.http.converter.json.Jackson2ObjectMapperBuilder; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JacksonAutoConfiguration.JacksonObjectMapperConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.http.converter.json.Jackson2ObjectMapperBuilder' (OnClassCondition)

   JacksonAutoConfiguration.JacksonObjectMapperConfiguration#jacksonObjectMapper matched:
      - @ConditionalOnMissingBean (types: com.fasterxml.jackson.databind.ObjectMapper; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JacksonAutoConfiguration.ParameterNamesModuleConfiguration matched:
      - @ConditionalOnClass found required class 'com.fasterxml.jackson.module.paramnames.ParameterNamesModule' (OnClassCondition)

   JacksonAutoConfiguration.ParameterNamesModuleConfiguration#parameterNamesModule matched:
      - @ConditionalOnMissingBean (types: com.fasterxml.jackson.module.paramnames.ParameterNamesModule; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JacksonHttpMessageConvertersConfiguration.MappingJackson2HttpMessageConverterConfiguration matched:
      - @ConditionalOnClass found required class 'com.fasterxml.jackson.databind.ObjectMapper' (OnClassCondition)
      - @ConditionalOnProperty (spring.mvc.converters.preferred-json-mapper=jackson) matched (OnPropertyCondition)
      - @ConditionalOnBean (types: com.fasterxml.jackson.databind.ObjectMapper; SearchStrategy: all) found bean 'jacksonObjectMapper' (OnBeanCondition)

   JacksonHttpMessageConvertersConfiguration.MappingJackson2HttpMessageConverterConfiguration#mappingJackson2HttpMessageConverter matched:
      - @ConditionalOnMissingBean (types: org.springframework.http.converter.json.MappingJackson2HttpMessageConverter ignored: org.springframework.hateoas.server.mvc.TypeConstrainedMappingJackson2HttpMessageConverter,org.springframework.data.rest.webmvc.alps.AlpsJsonHttpMessageConverter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JmxAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.jmx.export.MBeanExporter' (OnClassCondition)
      - @ConditionalOnProperty (spring.jmx.enabled=true) matched (OnPropertyCondition)

   JmxAutoConfiguration#mbeanExporter matched:
      - @ConditionalOnMissingBean (types: org.springframework.jmx.export.MBeanExporter; SearchStrategy: current) did not find any beans (OnBeanCondition)

   JmxAutoConfiguration#mbeanServer matched:
      - @ConditionalOnMissingBean (types: javax.management.MBeanServer; SearchStrategy: all) did not find any beans (OnBeanCondition)

   JmxAutoConfiguration#objectNamingStrategy matched:
      - @ConditionalOnMissingBean (types: org.springframework.jmx.export.naming.ObjectNamingStrategy; SearchStrategy: current) did not find any beans (OnBeanCondition)

   LifecycleAutoConfiguration#defaultLifecycleProcessor matched:
      - @ConditionalOnMissingBean (names: lifecycleProcessor; SearchStrategy: current) did not find any beans (OnBeanCondition)

   MultipartAutoConfiguration matched:
      - @ConditionalOnClass found required classes 'javax.servlet.Servlet', 'org.springframework.web.multipart.support.StandardServletMultipartResolver', 'javax.servlet.MultipartConfigElement' (OnClassCondition)
      - found 'session' scope (OnWebApplicationCondition)
      - @ConditionalOnProperty (spring.servlet.multipart.enabled) matched (OnPropertyCondition)

   MultipartAutoConfiguration#multipartConfigElement matched:
      - @ConditionalOnMissingBean (types: javax.servlet.MultipartConfigElement,org.springframework.web.multipart.commons.CommonsMultipartResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   MultipartAutoConfiguration#multipartResolver matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.multipart.MultipartResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   NoOpCacheConfiguration matched:
      - Cache org.springframework.boot.autoconfigure.cache.NoOpCacheConfiguration automatic cache type (CacheCondition)

   PropertyPlaceholderAutoConfiguration#propertySourcesPlaceholderConfigurer matched:
      - @ConditionalOnMissingBean (types: org.springframework.context.support.PropertySourcesPlaceholderConfigurer; SearchStrategy: current) did not find any beans (OnBeanCondition)

   RestTemplateAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.web.client.RestTemplate' (OnClassCondition)
      - NoneNestedConditions 0 matched 1 did not; NestedCondition on RestTemplateAutoConfiguration.NotReactiveWebApplicationCondition.ReactiveWebApplication did not find reactive web application classes (RestTemplateAutoConfiguration.NotReactiveWebApplicationCondition)

   RestTemplateAutoConfiguration#restTemplateBuilder matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.web.client.RestTemplateBuilder; SearchStrategy: all) did not find any beans (OnBeanCondition)

   ServletWebServerFactoryAutoConfiguration matched:
      - @ConditionalOnClass found required class 'javax.servlet.ServletRequest' (OnClassCondition)
      - found 'session' scope (OnWebApplicationCondition)

   ServletWebServerFactoryAutoConfiguration#tomcatServletWebServerFactoryCustomizer matched:
      - @ConditionalOnClass found required class 'org.apache.catalina.startup.Tomcat' (OnClassCondition)

   ServletWebServerFactoryConfiguration.EmbeddedTomcat matched:
      - @ConditionalOnClass found required classes 'javax.servlet.Servlet', 'org.apache.catalina.startup.Tomcat', 'org.apache.coyote.UpgradeProtocol' (OnClassCondition)
      - @ConditionalOnMissingBean (types: org.springframework.boot.web.servlet.server.ServletWebServerFactory; SearchStrategy: current) did not find any beans (OnBeanCondition)

   SimpleCacheConfiguration matched:
      - Cache org.springframework.boot.autoconfigure.cache.SimpleCacheConfiguration automatic cache type (CacheCondition)

   SpringApplicationAdminJmxAutoConfiguration matched:
      - @ConditionalOnProperty (spring.application.admin.enabled=true) matched (OnPropertyCondition)

   SpringApplicationAdminJmxAutoConfiguration#springApplicationAdminRegistrar matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.admin.SpringApplicationAdminMXBeanRegistrar; SearchStrategy: all) did not find any beans (OnBeanCondition)

   TaskExecutionAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor' (OnClassCondition)

   TaskExecutionAutoConfiguration#applicationTaskExecutor matched:
      - @ConditionalOnMissingBean (types: java.util.concurrent.Executor; SearchStrategy: all) did not find any beans (OnBeanCondition)

   TaskExecutionAutoConfiguration#taskExecutorBuilder matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.task.TaskExecutorBuilder; SearchStrategy: all) did not find any beans (OnBeanCondition)

   TaskSchedulingAutoConfiguration matched:
      - @ConditionalOnClass found required class 'org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler' (OnClassCondition)

   TaskSchedulingAutoConfiguration#taskSchedulerBuilder matched:
      - @ConditionalOnMissingBean (types: org.springframework.boot.task.TaskSchedulerBuilder; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration matched:
      - @ConditionalOnClass found required classes 'javax.servlet.Servlet', 'org.springframework.web.servlet.DispatcherServlet', 'org.springframework.web.servlet.config.annotation.WebMvcConfigurer' (OnClassCondition)
      - found 'session' scope (OnWebApplicationCondition)
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration#formContentFilter matched:
      - @ConditionalOnProperty (spring.mvc.formcontent.filter.enabled) matched (OnPropertyCondition)
      - @ConditionalOnMissingBean (types: org.springframework.web.filter.FormContentFilter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#defaultViewResolver matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.InternalResourceViewResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#requestContextFilter matched:
      - @ConditionalOnMissingBean (types: org.springframework.web.context.request.RequestContextListener,org.springframework.web.filter.RequestContextFilter; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#viewResolver matched:
      - @ConditionalOnBean (types: org.springframework.web.servlet.ViewResolver; SearchStrategy: all) found beans 'defaultViewResolver', 'beanNameViewResolver', 'mvcViewResolver'; @ConditionalOnMissingBean (names: viewResolver types: org.springframework.web.servlet.view.ContentNegotiatingViewResolver; SearchStrategy: all) did not find any beans (OnBeanCondition)

   WebSocketServletAutoConfiguration matched:
      - @ConditionalOnClass found required classes 'javax.servlet.Servlet', 'javax.websocket.server.ServerContainer' (OnClassCondition)
      - found 'session' scope (OnWebApplicationCondition)

   WebSocketServletAutoConfiguration.TomcatWebSocketConfiguration matched:
      - @ConditionalOnClass found required classes 'org.apache.catalina.startup.Tomcat', 'org.apache.tomcat.websocket.server.WsSci' (OnClassCondition)

   WebSocketServletAutoConfiguration.TomcatWebSocketConfiguration#websocketServletWebServerCustomizer matched:
      - @ConditionalOnMissingBean (names: websocketServletWebServerCustomizer; SearchStrategy: all) did not find any beans (OnBeanCondition)


Negative matches:
-----------------

   ActiveMQAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.jms.ConnectionFactory' (OnClassCondition)

   AopAutoConfiguration.AspectJAutoProxyingConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.aspectj.weaver.Advice' (OnClassCondition)

   ArtemisAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.jms.ConnectionFactory' (OnClassCondition)

   BatchAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.batch.core.launch.JobLauncher' (OnClassCondition)

   CacheAutoConfiguration:
      Did not match:
         - @ConditionalOnBean (types: org.springframework.cache.interceptor.CacheAspectSupport; SearchStrategy: all) did not find any beans of type org.springframework.cache.interceptor.CacheAspectSupport (OnBeanCondition)
      Matched:
         - @ConditionalOnClass found required class 'org.springframework.cache.CacheManager' (OnClassCondition)

   CacheAutoConfiguration.CacheManagerEntityManagerFactoryDependsOnPostProcessor:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean' (OnClassCondition)
         - Ancestor org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration did not match (ConditionEvaluationReport.AncestorsMatchedCondition)

   CaffeineCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.github.benmanes.caffeine.cache.Caffeine' (OnClassCondition)

   CassandraAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.datastax.oss.driver.api.core.CqlSession' (OnClassCondition)

   CassandraDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.datastax.oss.driver.api.core.CqlSession' (OnClassCondition)

   CassandraReactiveDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.datastax.oss.driver.api.core.CqlSession' (OnClassCondition)

   CassandraReactiveRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.cassandra.ReactiveSession' (OnClassCondition)

   CassandraRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.datastax.oss.driver.api.core.CqlSession' (OnClassCondition)

   ClientHttpConnectorAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.web.reactive.function.client.WebClient' (OnClassCondition)

   CodecsAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.web.reactive.function.client.WebClient' (OnClassCondition)

   CouchbaseAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.couchbase.client.java.Cluster' (OnClassCondition)

   CouchbaseCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.couchbase.client.java.Cluster' (OnClassCondition)

   CouchbaseDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.couchbase.client.java.Bucket' (OnClassCondition)

   CouchbaseReactiveDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.couchbase.client.java.Cluster' (OnClassCondition)

   CouchbaseReactiveRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.couchbase.client.java.Cluster' (OnClassCondition)

   CouchbaseRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.couchbase.client.java.Bucket' (OnClassCondition)

   DataSourceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType' (OnClassCondition)

   DataSourceTransactionManagerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.jdbc.core.JdbcTemplate' (OnClassCondition)

   DispatcherServletAutoConfiguration.DispatcherServletConfiguration#multipartResolver:
      Did not match:
         - @ConditionalOnBean (types: org.springframework.web.multipart.MultipartResolver; SearchStrategy: all) did not find any beans of type org.springframework.web.multipart.MultipartResolver (OnBeanCondition)

   EhCacheCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'net.sf.ehcache.Cache' (OnClassCondition)

   ElasticsearchDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.elasticsearch.core.ElasticsearchTemplate' (OnClassCondition)

   ElasticsearchRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.elasticsearch.client.Client' (OnClassCondition)

   ElasticsearchRestClientAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.elasticsearch.client.RestClient' (OnClassCondition)

   EmbeddedLdapAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.unboundid.ldap.listener.InMemoryDirectoryServer' (OnClassCondition)

   EmbeddedMongoAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.mongodb.MongoClientSettings' (OnClassCondition)

   EmbeddedWebServerFactoryCustomizerAutoConfiguration.JettyWebServerFactoryCustomizerConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes 'org.eclipse.jetty.server.Server', 'org.eclipse.jetty.util.Loader', 'org.eclipse.jetty.webapp.WebAppContext' (OnClassCondition)

   EmbeddedWebServerFactoryCustomizerAutoConfiguration.NettyWebServerFactoryCustomizerConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'reactor.netty.http.server.HttpServer' (OnClassCondition)

   EmbeddedWebServerFactoryCustomizerAutoConfiguration.UndertowWebServerFactoryCustomizerConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required classes 'io.undertow.Undertow', 'org.xnio.SslClientAuthMode' (OnClassCondition)

   ErrorWebFluxAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.web.reactive.config.WebFluxConfigurer' (OnClassCondition)

   FlywayAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.flywaydb.core.Flyway' (OnClassCondition)

   FreeMarkerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'freemarker.template.Configuration' (OnClassCondition)

   GroovyTemplateAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'groovy.text.markup.MarkupTemplateEngine' (OnClassCondition)

   GsonAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.google.gson.Gson' (OnClassCondition)

   GsonHttpMessageConvertersConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.google.gson.Gson' (OnClassCondition)

   H2ConsoleAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.h2.server.web.WebServlet' (OnClassCondition)

   HazelcastAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.hazelcast.core.HazelcastInstance' (OnClassCondition)

   HazelcastCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.hazelcast.core.HazelcastInstance' (OnClassCondition)

   HazelcastJpaDependencyAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.hazelcast.core.HazelcastInstance' (OnClassCondition)

   HibernateJpaAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.persistence.EntityManager' (OnClassCondition)

   HttpHandlerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.web.reactive.DispatcherHandler' (OnClassCondition)

   HypermediaAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.hateoas.EntityModel' (OnClassCondition)

   InfinispanCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.infinispan.spring.embedded.provider.SpringEmbeddedCacheManager' (OnClassCondition)

   InfluxDbAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.influxdb.InfluxDB' (OnClassCondition)

   IntegrationAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.integration.config.EnableIntegration' (OnClassCondition)

   JCacheCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.cache.Caching' (OnClassCondition)

   JacksonHttpMessageConvertersConfiguration.MappingJackson2XmlHttpMessageConverterConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.fasterxml.jackson.dataformat.xml.XmlMapper' (OnClassCondition)

   JdbcRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.jdbc.repository.config.AbstractJdbcConfiguration' (OnClassCondition)

   JdbcTemplateAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.jdbc.core.JdbcTemplate' (OnClassCondition)

   JerseyAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.glassfish.jersey.server.spring.SpringComponentProvider' (OnClassCondition)

   JmsAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.jms.Message' (OnClassCondition)

   JndiConnectionFactoryAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.jms.core.JmsTemplate' (OnClassCondition)

   JndiDataSourceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType' (OnClassCondition)

   JooqAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.jooq.DSLContext' (OnClassCondition)

   JpaRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.jpa.repository.JpaRepository' (OnClassCondition)

   JsonbAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.json.bind.Jsonb' (OnClassCondition)

   JsonbHttpMessageConvertersConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.json.bind.Jsonb' (OnClassCondition)

   JtaAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.transaction.Transaction' (OnClassCondition)

   KafkaAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.kafka.core.KafkaTemplate' (OnClassCondition)

   LdapAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.ldap.core.ContextSource' (OnClassCondition)

   LdapRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.ldap.repository.LdapRepository' (OnClassCondition)

   LiquibaseAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'liquibase.change.DatabaseChange' (OnClassCondition)

   MailSenderAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.activation.MimeType' (OnClassCondition)

   MailSenderValidatorAutoConfiguration:
      Did not match:
         - @ConditionalOnSingleCandidate did not find required type 'org.springframework.mail.javamail.JavaMailSenderImpl' (OnBeanCondition)

   MessageSourceAutoConfiguration:
      Did not match:
         - ResourceBundle did not find bundle with basename messages (MessageSourceAutoConfiguration.ResourceBundleCondition)

   MongoAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.mongodb.client.MongoClient' (OnClassCondition)

   MongoDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.mongodb.client.MongoClient' (OnClassCondition)

   MongoReactiveAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.mongodb.reactivestreams.client.MongoClient' (OnClassCondition)

   MongoReactiveDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.mongodb.reactivestreams.client.MongoClient' (OnClassCondition)

   MongoReactiveRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.mongodb.reactivestreams.client.MongoClient' (OnClassCondition)

   MongoRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.mongodb.client.MongoClient' (OnClassCondition)

   MustacheAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.samskivert.mustache.Mustache' (OnClassCondition)

   Neo4jDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.neo4j.ogm.session.SessionFactory' (OnClassCondition)

   Neo4jRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.neo4j.ogm.session.Neo4jSession' (OnClassCondition)

   OAuth2ClientAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.config.annotation.web.configuration.EnableWebSecurity' (OnClassCondition)

   OAuth2ResourceServerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.oauth2.server.resource.BearerTokenAuthenticationToken' (OnClassCondition)

   PersistenceExceptionTranslationAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor' (OnClassCondition)

   ProjectInfoAutoConfiguration#buildProperties:
      Did not match:
         - @ConditionalOnResource did not find resource '${spring.info.build.location:classpath:META-INF/build-info.properties}' (OnResourceCondition)

   ProjectInfoAutoConfiguration#gitProperties:
      Did not match:
         - GitResource did not find git info at classpath:git.properties (ProjectInfoAutoConfiguration.GitResourceAvailableCondition)

   QuartzAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.quartz.Scheduler' (OnClassCondition)

   R2dbcAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'io.r2dbc.spi.ConnectionFactory' (OnClassCondition)

   R2dbcDataAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.r2dbc.core.DatabaseClient' (OnClassCondition)

   R2dbcRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'io.r2dbc.spi.ConnectionFactory' (OnClassCondition)

   R2dbcTransactionManagerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.r2dbc.connectionfactory.R2dbcTransactionManager' (OnClassCondition)

   RSocketMessagingAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'io.rsocket.RSocketFactory' (OnClassCondition)

   RSocketRequesterAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'io.rsocket.RSocketFactory' (OnClassCondition)

   RSocketSecurityAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.rsocket.core.SecuritySocketAcceptorInterceptor' (OnClassCondition)

   RSocketServerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'io.rsocket.core.RSocketServer' (OnClassCondition)

   RSocketStrategiesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'io.netty.buffer.PooledByteBufAllocator' (OnClassCondition)

   RabbitAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.rabbitmq.client.Channel' (OnClassCondition)

   ReactiveElasticsearchRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.elasticsearch.client.reactive.ReactiveElasticsearchClient' (OnClassCondition)

   ReactiveElasticsearchRestClientAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'reactor.netty.http.client.HttpClient' (OnClassCondition)

   ReactiveOAuth2ClientAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'reactor.core.publisher.Flux' (OnClassCondition)

   ReactiveOAuth2ResourceServerAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity' (OnClassCondition)

   ReactiveSecurityAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'reactor.core.publisher.Flux' (OnClassCondition)

   ReactiveUserDetailsServiceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.authentication.ReactiveAuthenticationManager' (OnClassCondition)

   ReactiveWebServerFactoryAutoConfiguration:
      Did not match:
         - @ConditionalOnWebApplication did not find reactive web application classes (OnWebApplicationCondition)

   RedisAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.redis.core.RedisOperations' (OnClassCondition)

   RedisCacheConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.redis.connection.RedisConnectionFactory' (OnClassCondition)

   RedisReactiveAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'reactor.core.publisher.Flux' (OnClassCondition)

   RedisRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.redis.repository.configuration.EnableRedisRepositories' (OnClassCondition)

   RepositoryRestMvcAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguration' (OnClassCondition)

   Saml2RelyingPartyAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.saml2.provider.service.registration.RelyingPartyRegistrationRepository' (OnClassCondition)

   SecurityAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.authentication.DefaultAuthenticationEventPublisher' (OnClassCondition)

   SecurityFilterAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.config.http.SessionCreationPolicy' (OnClassCondition)

   SendGridAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'com.sendgrid.SendGrid' (OnClassCondition)

   ServletWebServerFactoryAutoConfiguration#forwardedHeaderFilter:
      Did not match:
         - @ConditionalOnProperty (server.forward-headers-strategy=framework) did not find property 'server.forward-headers-strategy' (OnPropertyCondition)

   ServletWebServerFactoryConfiguration.EmbeddedJetty:
      Did not match:
         - @ConditionalOnClass did not find required classes 'org.eclipse.jetty.server.Server', 'org.eclipse.jetty.util.Loader', 'org.eclipse.jetty.webapp.WebAppContext' (OnClassCondition)

   ServletWebServerFactoryConfiguration.EmbeddedUndertow:
      Did not match:
         - @ConditionalOnClass did not find required classes 'io.undertow.Undertow', 'org.xnio.SslClientAuthMode' (OnClassCondition)

   SessionAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.session.Session' (OnClassCondition)

   SolrAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.apache.solr.client.solrj.impl.CloudSolrClient' (OnClassCondition)

   SolrRepositoriesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.apache.solr.client.solrj.SolrClient' (OnClassCondition)

   SpringDataWebAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.data.web.PageableHandlerMethodArgumentResolver' (OnClassCondition)

   TaskSchedulingAutoConfiguration#taskScheduler:
      Did not match:
         - @ConditionalOnBean (names: org.springframework.context.annotation.internalScheduledAnnotationProcessor; SearchStrategy: all) did not find any beans named org.springframework.context.annotation.internalScheduledAnnotationProcessor (OnBeanCondition)

   ThymeleafAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.thymeleaf.spring5.SpringTemplateEngine' (OnClassCondition)

   TransactionAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.transaction.PlatformTransactionManager' (OnClassCondition)

   UserDetailsServiceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.security.authentication.AuthenticationManager' (OnClassCondition)

   ValidationAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.validation.executable.ExecutableValidator' (OnClassCondition)

   WebClientAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.web.reactive.function.client.WebClient' (OnClassCondition)

   WebFluxAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.web.reactive.config.WebFluxConfigurer' (OnClassCondition)

   WebMvcAutoConfiguration#hiddenHttpMethodFilter:
      Did not match:
         - @ConditionalOnProperty (spring.mvc.hiddenmethod.filter.enabled) did not find property 'enabled' (OnPropertyCondition)

   WebMvcAutoConfiguration.ResourceChainCustomizerConfiguration:
      Did not match:
         - @ConditionalOnEnabledResourceChain did not find class org.webjars.WebJarAssetLocator (OnEnabledResourceChainCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#beanNameViewResolver:
      Did not match:
         - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.BeanNameViewResolver; SearchStrategy: all) found beans of type 'org.springframework.web.servlet.view.BeanNameViewResolver' beanNameViewResolver (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#localeResolver:
      Did not match:
         - @ConditionalOnProperty (spring.mvc.locale) did not find property 'locale' (OnPropertyCondition)

   WebServiceTemplateAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.oxm.Marshaller' (OnClassCondition)

   WebServicesAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.ws.transport.http.MessageDispatcherServlet' (OnClassCondition)

   WebSocketMessagingAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer' (OnClassCondition)

   WebSocketReactiveAutoConfiguration:
      Did not match:
         - @ConditionalOnWebApplication did not find reactive web application classes (OnWebApplicationCondition)

   WebSocketServletAutoConfiguration.JettyWebSocketConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer' (OnClassCondition)

   WebSocketServletAutoConfiguration.UndertowWebSocketConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'io.undertow.websockets.jsr.Bootstrap' (OnClassCondition)

   XADataSourceAutoConfiguration:
      Did not match:
         - @ConditionalOnClass did not find required class 'javax.transaction.TransactionManager' (OnClassCondition)


Exclusions:
-----------

    None


Unconditional classes:
----------------------

    org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration

    org.springframework.boot.autoconfigure.context.LifecycleAutoConfiguration

    org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration

    org.springframework.boot.autoconfigure.availability.ApplicationAvailabilityAutoConfiguration

    org.springframework.boot.autoconfigure.info.ProjectInfoAutoConfiguration



2021-06-10 11:00:14.393  INFO 3660 --- [           main] hellospring.MainApplication              : Started MainApplication in 2.828 seconds (JVM running for 4.088)

3.2 例子——修改启动banner图案

首先将一张图片放入项目中

然后配置下启动时读取的图片路径

启动spring

原文链接：https://blog.csdn.net/qq_29996285/article/details/117720481