Spring-boot 启动时碰到的错误

发布时间:2019-11-17 发布网站:脚本宝典
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错误提示

Your ApplicationContext is unlikely to start due to a @componentScan of the default package

错误概述

最近学习sPRingboot的使用,写了一个小demo,结果总是碰到这样的错误:

** WARNING ** : Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package.   2016-02-26 10:07:01.550  WARN 6112 --- [           main] ationconfigEmbeddedWebApplicationContext : Exception encountered during context inITialization - cancelling refresh attempt  org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/C:/Users/cmc/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.2.5.RELEASE/spring-boot-autoconfigure-1.2.5.RELEASE.jar!/org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration$JdbcTemplateConfiguration.class]; nested exception is java.lang.IllegalstateException: Could not evaluate condition on org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$JdbcTemplateConfiguration due to internal class not found. This can hapPEn if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)     at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:303)     at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.DOScan(ClassPathBeanDefinitionScanner.java:248)     at org.springframework.context.annotation.COMponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:140)     at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:266)     at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:230)     at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:197)     at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:166)     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)     ...

解决方法

查了天终于才stack overflow上看到了解方案,链接如下:stack overflow
是因为application.java 文件不能直接放在main/java文件夹下,必须要建一个包把他放进去

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