如果您对警告:Exceptionencounteredduringcontextinitialization-cancellingrefreshattempt:org.springf...感兴趣，那么
如果您对警告: Exception encountered during context initialization - cancelling refresh attempt: org.springf...感兴趣，那么这篇文章一定是您不可错过的。我们将详细讲解警告: Exception encountered during context initialization - cancelling refresh attempt: org.springf...的各种细节，此外还有关于Caused by: org.springframework.context.annotation.ConflictingBeanDefinitionException、com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException、Context initialization failed org.springframework.beans.factory.BeanCreationException、Error starting Tomcat context. Exception: org.springframework.beans.factory.BeanCreationException的实用技巧。
本文目录一览：- 警告: Exception encountered during context initialization - cancelling refresh attempt: org.springf...
- Caused by: org.springframework.context.annotation.ConflictingBeanDefinitionException
- com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException
- Context initialization failed org.springframework.beans.factory.BeanCreationException
- Error starting Tomcat context. Exception: org.springframework.beans.factory.BeanCreationException
警告: Exception encountered during context initialization - cancelling refresh attempt: org.springf...
警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ''bookShopService'' defined in class path resource [tx.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type ''com.sun.proxy.$Proxy10 implementing com.figsprite.spring.BookShopDao,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,org.springframework.core.DecoratingProxy'' to required type ''com.figsprite.spring.BookShopDaoImpl'' for property ''bookShopDao''; nested exception is java.lang.IllegalStateException: Cannot convert value of type ''com.sun.proxy.$Proxy10 implementing com.figsprite.spring.BookShopDao,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,org.springframework.core.DecoratingProxy'' to required type ''com.figsprite.spring.BookShopDaoImpl'' for property ''bookShopDao'': no matching editors or conversion strategy found
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ''bookShopService'' defined in class path resource [tx.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type ''com.sun.proxy.$Proxy10 implementing com.figsprite.spring.BookShopDao,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,org.springframework.core.DecoratingProxy'' to required type ''com.figsprite.spring.BookShopDaoImpl'' for property ''bookShopDao''; nested exception is java.lang.IllegalStateException: Cannot convert value of type ''com.sun.proxy.$Proxy10 implementing com.figsprite.spring.BookShopDao,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised,org.springframework.core.DecoratingProxy'' to required type ''com.figsprite.spring.BookShopDaoImpl'' for property ''bookShopDao'': no matching editors or conversion strategy foundAOP 切点表达式写错了，报的是 DataSource 空指针？？喵喵？？？
出现这种错误多半是标签的问题，要细细检查一下
Caused by: org.springframework.context.annotation.ConflictingBeanDefinitionException
org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean name ''BusinessAccountController'' for bean class [com.hs.BusinessAccountController] conflicts with existing, non-compatible bean definition of same name and class [com.hs.BusinessAccountController]
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.checkCandidate(ClassPathBeanDefinitionScanner.java:314)
at org.mybatis.spring.mapper.ClassPathMapperScanner.checkCandidate(ClassPathMapperScanner.java:223)
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:253)
at org.mybatis.spring.mapper.ClassPathMapperScanner.doScan(ClassPathMapperScanner.java:155)
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.scan(ClassPathBeanDefinitionScanner.java:220)问题的根源是出现bean名称重复
原因：
1.两个bean名称重复，spring扫描无法创建bean对象（有时候会与引入的第三方的jar包中的bean名称重复）；
2.target中有缓存导致，Maven项目clean下再编译
com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException
confluence 启动访问报错：
com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException
at com.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:149)
at com.atlassian.util.concurrent.LazyReference.get(LazyReference.java:112)
at com.atlassian.confluence.plugin.servlet.filter.ServletFilterModuleContainerFilter.getServletModuleManager(ServletFilterModuleContainerFilter.java:23)
at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:68)
at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.atlassian.confluence.web.filter.DebugFilter.doFilter(DebugFilter.java:50)
at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:488)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:466)
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:337)
at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:427)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:200)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
解决办法：
给 confluence 的 HOME 文件夹赋权限
chmod -R 777 /var/atlassian/
Context initialization failed org.springframework.beans.factory.BeanCreationException
严重: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘webSocketHandlerMapping’ defined in class path resource [org/springframework/web/socket/config/annotation/DelegatingWebSocketConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method ‘webSocketHandlerMapping’ threw exception; nested exception is java.lang.IllegalStateException: No suitable default RequestUpgradeStrategy found
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1111)
at …
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method ‘webSocketHandlerMapping’ threw exception; nested exception is java.lang.IllegalStateException: No suitable default RequestUpgradeStrategy found
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
at …
Caused by: java.lang.IllegalStateException: No suitable default RequestUpgradeStrategy found
at org.springframework.web.socket.server.support.DefaultHandshakeHandler.initRequestUpgradeStrategy(DefaultHandshakeHandler.java:127)
at …出现上述异常，是由于缺少 RequestUpgradeStrategy
对于 jetty，需要添加如下依赖
1 <dependency>
2 <groupId>org.eclipse.jetty.websocket</groupId>
3 <artifactId>websocket-server</artifactId>
4 <version>9.3.3.v20150827</version>
5 <scope>provided</scope>
6 </dependency>对于 tomcat，需要添加如下依赖
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-websocket</artifactId>
<version>8.0.23</version>
<scope>provided</scope>
</dependency>在 poem.xml 文件中添加这两个依赖后成功解决
原文：https://blog.csdn.net/manerfan/article/details/48526681
来源：CSDN
Error starting Tomcat context. Exception: org.springframework.beans.factory.BeanCreationException
Error starting Tomcat context. Exception: org.springframework.beans.factory.BeanCreationException. Message: Error creating bean with name ''servletEndpointRegistrar'' defined in class path resource [org/springframework/boot/actuate/autoconfigure/endpoint/web/ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method ''servletEndpointRegistrar'' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ''healthEndpoint'' defined in class path resource [org/springframework/boot/actuate/autoconfigure/health/HealthEndpointConfiguration.class]: Unsatisfied dependency expressed through method ''healthEndpoint'' parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ''healthIndicatorRegistry'' defined in class path resource [org/springframework/boot/actuate/autoconfigure/health/HealthIndicatorAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.health.HealthIndicatorRegistry]: Factory method ''healthIndicatorRegistry'' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ''org.springframework.boot.actuate.autoconfigure.jdbc.DataSourceHealthIndicatorAutoConfiguration'': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ''dataSource'' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method ''dataSource'' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class
这是什么原因造成的呢？
我自己摸索了很久发现，该项目的在pom文件中的这个看图：
没错，packaging标签我们不应该写成pom，要嘛不写去掉，要嘛就写成jar。
然后重启springBoot项目就不会报这个错误了，希望能帮到大家。
今天关于警告: Exception encountered during context initialization - cancelling refresh attempt: org.springf...的讲解已经结束，谢谢您的阅读，如果想了解更多关于Caused by: org.springframework.context.annotation.ConflictingBeanDefinitionException、com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException、Context initialization failed org.springframework.beans.factory.BeanCreationException、Error starting Tomcat context. Exception: org.springframework.beans.factory.BeanCreationException的相关知识，请在本站搜索。
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