我正在使用@EnableAutoConfig将Spring Boot应用程序迁移到不使用@EnableAutConfig。要启动迁移过程，我使用--debug启动应用程序，并注意在生成的报告的正结果中引用了哪些配置。这些是我基于非EnableAutoConfig应用程序配置的配置：
@Configuration
@Import({
AopAutoConfiguration.class,
AuditAutoConfiguration.class,
AuthenticationManagerConfiguration.class,
DispatcherServletAutoConfiguration.class,
EmbeddedServletContainerAutoConfiguration.class,
EndpointAutoConfiguration.class,
EndpointMBeanExportAutoConfiguration.class,
EndpointWebMvcAutoConfiguration.class,
ErrorMvcAutoConfiguration.class,
HealthIndicatorAutoConfiguration.class,
HttpMessageConvertersAutoConfiguration.class,
JacksonAutoConfiguration.class,
ManagementSecurityAutoConfiguration.class,
ManagementServerPropertiesAutoConfiguration.class,
MultipartAutoConfiguration.class,
PropertyPlaceholderAutoConfiguration.class,
SecurityAutoConfiguration.class,
ServerPropertiesAutoConfiguration.class,
TraceRepositoryAutoConfiguration.class,
TraceWebFilterAutoConfiguration.class,
WebMvcAutoConfiguration.class
})
public class CoreSpringBootAutoConfig {
}
然而，当我使用这个新的CoreSpringBoot配置启动应用程序时， 它间歇性地（大约1次在3中）无法启动异常 报告需要AuthenticationManager：
2015-02-07 17:26:11.034 ERROR 23517 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:124)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474)
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:320)
at com.xoom.inf.boot.api.sample.AppBuilder.run(AppBuilder.java:232)
at com.xoom.inf.boot.api.sample.Main.runApplication(Main.java:52)
at com.xoom.inf.boot.api.sample.Main.main(Main.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
at java.lang.Thread.run(Thread.java:724)
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:95)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:74)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:377)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:153)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:148)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:121)
... 13 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springSecurityFilterChain' defined in class org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.servlet.Filter org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain() throws java.lang. Exception] threw exception; nested exception is java.lang.IllegalArgumentException: An AuthenticationManager is required
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:601)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1113)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1008)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:505)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:176)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAsRegistrationBean(ServletContextInitializerBeans.java:141)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAsRegistrationBean(ServletContextInitializerBeans.java:136)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAdaptableBeans(ServletContextInitializerBeans.java:119)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:69)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getServletContextInitializerBeans(EmbeddedWebApplicationContext.java:216)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:202)
at org.springframework.boot.context.embedded.tomcat.ServletContextInitializerLifecycleListener.lifecycleEvent(ServletContextInitializerLifecycleListener.java:64)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5378)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
... 1 common frames omitted
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.servlet.Filter org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain() throws java.lang.Exception] threw exception; nested exception is java.lang.IllegalArgumentException: An AuthenticationManager is required
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:188)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:590)
... 27 common frames omitted
Caused by: java.lang.IllegalArgumentException: An AuthenticationManager is required
at org.springframework.util.Assert.notNull(Assert.java:112)
at org.springframework.security.access.intercept.AbstractSecurityInterceptor.afterPropertiesSet(AbstractSecurityInterceptor.java:121)
at org.springframework.security.config.annotation.web.configurers.AbstractInterceptUrlConfigurer.createFilterSecurityInterceptor(AbstractInterceptUrlConfigurer.java:187)
at org.springframework.security.config.annotation.web.configurers.AbstractInterceptUrlConfigurer.configure(AbstractInterceptUrlConfigurer.java:76)
at org.springframework.security.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer.configure(ExpressionUrlAuthorizationConfigurer.java:70)
at org.springframework.security.config.annotation.web.configurers.AbstractInterceptUrlConfigurer.configure(AbstractInterceptUrlConfigurer.java:64)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.configure(AbstractConfiguredSecurityBuilder.java:376)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.doBuild(AbstractConfiguredSecurityBuilder.java:325)
at org.springframework.security.config.annotation.AbstractSecurityBuilder.build(AbstractSecurityBuilder.java:39)
at org.springframework.security.config.annotation.web.builders.WebSecurity.performBuild(WebSecurity.java:293)
at org.springframework.security.config.annotation.web.builders.WebSecurity.performBuild(WebSecurity.java:74)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.doBuild(AbstractConfiguredSecurityBuilder.java:329)
at org.springframework.security.config.annotation.AbstractSecurityBuilder.build(AbstractSecurityBuilder.java:39)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain(WebSecurityConfiguration.java:92)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$cccdaa5.CGLIB$springSecurityFilterChain$1(<generated>)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$cccdaa5$$FastClassBySpringCGLIB$$6413ba29.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:312)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$cccdaa5.springSecurityFilterChain(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:166)
... 28 common frames omitted
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
at java.lang.Thread.run(Thread.java:724)
Caused by: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:124)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474)
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:320)
at com.xoom.inf.boot.api.sample.AppBuilder.run(AppBuilder.java:232)
at com.xoom.inf.boot.api.sample.Main.runApplication(Main.java:52)
at com.xoom.inf.boot.api.sample.Main.main(Main.java:24)
... 6 more
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:95)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:74)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:377)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:153)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:148)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:121)
... 13 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springSecurityFilterChain' defined in class org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.servlet.Filter org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain() throws java.lang. Exception] threw exception; nested exception is java.lang.IllegalArgumentException: An AuthenticationManager is required
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:601)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1113)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1008)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:505)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:176)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAsRegistrationBean(ServletContextInitializerBeans.java:141)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAsRegistrationBean(ServletContextInitializerBeans.java:136)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAdaptableBeans(ServletContextInitializerBeans.java:119)
at org.springframework.boot.context.embedded.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:69)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getServletContextInitializerBeans(EmbeddedWebApplicationContext.java:216)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:202)
at org.springframework.boot.context.embedded.tomcat.ServletContextInitializerLifecycleListener.lifecycleEvent(ServletContextInitializerLifecycleListener.java:64)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5378)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
... 1 more
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public javax.servlet.Filter org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain() throws java.lang.Exception] threw exception; nested exception is java.lang.IllegalArgumentException: An AuthenticationManager is required
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:188)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:590)
... 27 more
Caused by: java.lang.IllegalArgumentException: An AuthenticationManager is required
at org.springframework.util.Assert.notNull(Assert.java:112)
at org.springframework.security.access.intercept.AbstractSecurityInterceptor.afterPropertiesSet(AbstractSecurityInterceptor.java:121)
at org.springframework.security.config.annotation.web.configurers.AbstractInterceptUrlConfigurer.createFilterSecurityInterceptor(AbstractInterceptUrlConfigurer.java:187)
at org.springframework.security.config.annotation.web.configurers.AbstractInterceptUrlConfigurer.configure(AbstractInterceptUrlConfigurer.java:76)
at org.springframework.security.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer.configure(ExpressionUrlAuthorizationConfigurer.java:70)
at org.springframework.security.config.annotation.web.configurers.AbstractInterceptUrlConfigurer.configure(AbstractInterceptUrlConfigurer.java:64)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.configure(AbstractConfiguredSecurityBuilder.java:376)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.doBuild(AbstractConfiguredSecurityBuilder.java:325)
at org.springframework.security.config.annotation.AbstractSecurityBuilder.build(AbstractSecurityBuilder.java:39)
at org.springframework.security.config.annotation.web.builders.WebSecurity.performBuild(WebSecurity.java:293)
at org.springframework.security.config.annotation.web.builders.WebSecurity.performBuild(WebSecurity.java:74)
at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.doBuild(AbstractConfiguredSecurityBuilder.java:329)
at org.springframework.security.config.annotation.AbstractSecurityBuilder.build(AbstractSecurityBuilder.java:39)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain(WebSecurityConfiguration.java:92)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$cccdaa5.CGLIB$springSecurityFilterChain$1(<generated>)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$cccdaa5$$FastClassBySpringCGLIB$$6413ba29.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:312)
at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$cccdaa5.springSecurityFilterChain(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:166)
... 28 more
但是，当我从CoreSpringBootConfiguration中删除AuthenticationManagerConfiguration.class时，到目前为止，我在十几次启动后遇到没有失败的应用程序启动。
我注意到SecurityAutoConfiguration.class导入了感兴趣的类AuthenticationManagerConfiguration.class。
我的印象是，不止一次包含一个配置类不会产生任何不利影响，但这似乎是不真实的。
在SecurityAutoConfiguration.class导入之前可能包含AuthenticationManagerConfiguration.class可能导致在为应用程序开发AuthenticationManager时出现竞争条件吗？