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首页/文章专栏/springboot启动 @ComponentScan错误

springboot启动 @ComponentScan错误

Anchorer / 1148人阅读

摘要：错误提示根据的来运行会报出下面的错误解决方法原来是是偷懒没有把放到某个下面，而是直接放到了。

错误提示

根据springboot的tutorial来运行

https://spring.io/guides/gs/spring-boot/

会报出下面的错误：

2016-01-28 11:35:42.034  INFO 3732 --- [           main] Application                              : Starting Application on DFWLW72RTG262 with PID 3732 (C:projectRestSpringBoot	argetspringboot-0.0
.1-SNAPSHOT.jar started by vaigupta in C:projectRestSpringBoot	arget)
2016-01-28 11:35:42.123  INFO 3732 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7
d7cd6ad: startup date [Thu Jan 28 11:35:42 CST 2016]; root of context hierarchy
2016-01-28 11:35:42.149  WARN 3732 --- [           main] ionWarningsApplicationContextInitializer :

** WARNING ** : Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package.


2016-01-28 11:35:48.607  WARN 3732 --- [           main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [Application]; nested exception is java.io.FileNotFoundException: class path resource [org/springfra
mework/security/config/annotation/authentication/configurers/GlobalAuthenticationConfigurerAdapter.class] cannot be opened because it does not exist
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:177)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:306)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:239)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:254)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:94)
        at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:606)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:462)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:109)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:961)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:950)
        at Application.main(Application.java:9)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: class path resource [org/springframework/security/config/annotation/authentication/configurers/GlobalAuthenticationConfigurerAdapter.class] cannot be opened b
ecause it does not exist
        at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
        at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:50)
        at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:98)
        at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102)
        at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:93)
        at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:591)
        at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getSuperClass(ConfigurationClassParser.java:762)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:297)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:185)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:266)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:193)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:163)
        ... 18 common frames omitted

2016-01-28 11:35:48.645  INFO 3732 --- [           main] .b.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [jar:file:/C:/project/RestSpringBoot/target/springboot-0
.0.1-SNAPSHOT.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-boot-starter-web-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.
0.1-SNAPSHOT.jar!/lib/spring-boot-starter-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-boot-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestS
pringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-boot-autoconfigure-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-boot-starter-log
ging-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/jul-to-slf4j-1.7.7.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.j
ar!/lib/log4j-over-slf4j-1.7.7.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/logback-classic-1.1.2.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0
.0.1-SNAPSHOT.jar!/lib/logback-core-1.1.2.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/snakeyaml-1.14.jar!/, jar:file:/C:/project/RestSpringBoot/target/springbo
ot-0.0.1-SNAPSHOT.jar!/lib/spring-boot-starter-tomcat-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/tomcat-embed-core-8.0.15.jar!/, jar:file:/C:/pr
oject/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/tomcat-embed-el-8.0.15.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/tomcat-embed-logging-juli-8.0
.15.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/tomcat-embed-websocket-8.0.15.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/
lib/jackson-databind-2.4.4.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/jackson-annotations-2.4.4.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0
.0.1-SNAPSHOT.jar!/lib/jackson-core-2.4.4.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/hibernate-validator-5.1.3.Final.jar!/, jar:file:/C:/project/RestSpringBoo
t/target/springboot-0.0.1-SNAPSHOT.jar!/lib/validation-api-1.1.0.Final.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/jboss-logging-3.1.3.GA.jar!/, jar:file:/C:/p
roject/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/classmate-1.0.0.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-core-4.1.3.RELEASE.jar!/, ja
r:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-web-4.1.3.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-aop-4.1
.3.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/aopalliance-1.0.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spr
ing-beans-4.1.3.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-context-4.1.3.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0
.0.1-SNAPSHOT.jar!/lib/spring-webmvc-4.1.3.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-expression-4.1.3.RELEASE.jar!/, jar:file:/C:/project/Rest
SpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-boot-starter-data-jpa-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-boot-starter
-aop-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/aspectjrt-1.8.4.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!
/lib/aspectjweaver-1.8.4.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-boot-starter-jdbc-1.2.0.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/s
pringboot-0.0.1-SNAPSHOT.jar!/lib/spring-jdbc-4.1.3.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/tomcat-jdbc-8.0.15.jar!/, jar:file:/C:/project/RestSpri
ngBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/tomcat-juli-8.0.15.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-tx-4.1.3.RELEASE.jar!/, jar:file:/C:/pro
ject/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/hibernate-entitymanager-4.3.7.Final.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/jboss-logging-ann
otations-1.2.0.Beta1.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/hibernate-core-4.3.7.Final.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-
SNAPSHOT.jar!/lib/antlr-2.7.7.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/jandex-1.1.0.Final.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1
-SNAPSHOT.jar!/lib/dom4j-1.6.1.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/xml-apis-1.0.b2.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-S
NAPSHOT.jar!/lib/hibernate-commons-annotations-4.0.5.Final.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/hibernate-jpa-2.1-api-1.0.0.Final.jar!/, jar:file:/C:/pr
oject/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/jboss-transaction-api_1.2_spec-1.0.0.Final.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/javassist
-3.18.1-GA.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-orm-4.1.3.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar
!/lib/spring-data-jpa-1.7.1.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-data-commons-1.9.1.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/ta
rget/springboot-0.0.1-SNAPSHOT.jar!/lib/slf4j-api-1.7.7.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/jcl-over-slf4j-1.7.7.jar!/, jar:file:/C:/project/RestSpring
Boot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/spring-aspects-4.1.3.RELEASE.jar!/, jar:file:/C:/project/RestSpringBoot/target/springboot-0.0.1-SNAPSHOT.jar!/lib/hsqldb-2.3.2.jar!/]
2016-01-28 11:35:48.669 ERROR 3732 --- [           main] o.s.boot.SpringApplication               : Application startup failed

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [Application]; nested exception is java.io.FileNotFoundException: class path resource [org/springfra
mework/security/config/annotation/authentication/configurers/GlobalAuthenticationConfigurerAdapter.class] cannot be opened because it does not exist
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:177)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:306)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:239)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:254)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:94)
        at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:606)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:462)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:109)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:961)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:950)
        at Application.main(Application.java:9)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: class path resource [org/springframework/security/config/annotation/authentication/configurers/GlobalAuthenticationConfigurerAdapter.class] cannot be opened b
ecause it does not exist
        at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
        at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:50)
        at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:98)
        at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102)
        at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:93)
        at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:591)
        at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getSuperClass(ConfigurationClassParser.java:762)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:297)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:185)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:266)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:193)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:163)
        ... 18 common frames omitted

Exception in thread "main" java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
        at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [Application]; nested exception is java.io.FileNotFoundException: class path resource [or
g/springframework/security/config/annotation/authentication/configurers/GlobalAuthenticationConfigurerAdapter.class] cannot be opened because it does not exist
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:177)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:306)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:239)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:254)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:94)
        at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:606)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:462)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:109)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:961)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:950)
        at Application.main(Application.java:9)
        ... 6 more
Caused by: java.io.FileNotFoundException: class path resource [org/springframework/security/config/annotation/authentication/configurers/GlobalAuthenticationConfigurerAdapter.class] cannot be opened b
ecause it does not exist
        at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
        at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:50)
        at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:98)
        at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102)
        at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:93)
        at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:591)
        at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getSuperClass(ConfigurationClassParser.java:762)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:297)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:185)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:266)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:193)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:163)
        ... 18 more
Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:62)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
        ... 1 more
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [Application]; nested exception is java.io.FileNotFoundException: class path resource [or
g/springframework/security/config/annotation/authentication/configurers/GlobalAuthenticationConfigurerAdapter.class] cannot be opened because it does not exist
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:177)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:306)
        at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:239)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:254)
        at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:94)
        at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:606)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:462)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:109)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:961)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:950)
        at Application.main(Application.java:9)
        ... 6 more
Caused by: java.io.FileNotFoundException: class path resource [org/springframework/security/config/annotation/authentication/configurers/GlobalAuthenticationConfigurerAdapter.class] cannot be opened b
ecause it does not exist
        at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
        at org.springframework.core.type.classreading.SimpleMetadataReader.(SimpleMetadataReader.java:50)
        at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:98)
        at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102)
        at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:93)
        at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:591)
        at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getSuperClass(ConfigurationClassParser.java:762)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:297)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:185)
        at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:266)
        at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:226)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:193)
        at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:163)
        ... 18 more
解决方法

原来是是偷懒没有把Appication.java放到某个package下面，而是直接放到了src/main/java。所以报出了下面的异常

** WARNING ** : Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package.

只要把Appication.java放到某个包下面就不会报错了。

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