spring boot 项目启动报错：原因一般是注入了相同名字的service
1 2018-08-16 17:53:19 com.gxcards.mes.MainWwwWeb:662 logStartupProfileInfo INFO: No active profile set, falling back to default profiles: default2 2018-08-16 17:53:19 org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext:582 prepareRefresh INFO: Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@63429932: startup date [Thu Aug 16 17:53:19 CST 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@764faa63 2018-08-16 17:53:20 org.springframework.beans.factory.support.DefaultListableBeanFactory:828 registerBeanDefinition INFO: Overriding bean definition for bean 'restTemplate' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=restTemplateConfiguration; factoryMethodName=restTemplate; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/gxcards/mes/config/RestTemplateConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=mainGoodsService; factoryMethodName=restTemplate; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/gxcards/mes/MainGoodsService.class]]4 2018-08-16 17:53:20 org.springframework.beans.factory.support.DefaultListableBeanFactory:828 registerBeanDefinition INFO: Overriding bean definition for bean 'restTemplate' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=mainGoodsService; factoryMethodName=restTemplate; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/gxcards/mes/MainGoodsService.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=mainWwwWeb; factoryMethodName=restTemplate; initMethodName=null; destroyMethodName=(inferred); defined in com.gxcards.mes.MainWwwWeb]5 2018-08-16 17:53:20 org.springframework.boot.SpringApplication:840 reportFailure ERROR: Application startup failed6 java.lang.UnsupportedOperationException7 at java.util.AbstractCollection.add(AbstractCollection.java:262)8 at java.util.AbstractCollection.addAll(AbstractCollection.java:344)9 at org.springframework.boot.web.servlet.ServletComponentScanRegistrar.updatePostProcessor(ServletComponentScanRegistrar.java:62)10 at org.springframework.boot.web.servlet.ServletComponentScanRegistrar.registerBeanDefinitions(ServletComponentScanRegistrar.java:48)11 at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsFromRegistrars(ConfigurationClassBeanDefinitionReader.java:352)12 at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:143)13 at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:116)14 at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:320)15 at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:228)16 at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:270)17 at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93)18 at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:686)19 at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:524)20 at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)21 at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762)22 at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:372)23 at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)24 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1187)25 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1176)26 at com.gxcards.mes.MainWwwWeb.main(MainWwwWeb.java:42)27 2018-08-16 17:53:20 org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext:987 doClose INFO: Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@63429932: startup date [Thu Aug 16 17:53:19 CST 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@764faa628 2018-08-16 17:53:20 org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext:1005 doClose WARN: Exception thrown from LifecycleProcessor on context close29 java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@63429932: startup date [Thu Aug 16 17:53:19 CST 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@764faa630 at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:417)31 at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1002)32 at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:961)33 at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:819)34 at org.springframework.boot.SpringApplication.run(SpringApplication.java:327)35 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1187)36 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1176)37 at com.gxcards.mes.MainWwwWeb.main(MainWwwWeb.java:42)38 2018-08-16 17:53:20 org.springframework.beans.factory.support.DefaultListableBeanFactory:581 destroyBean ERROR: Destroy method on bean with name 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' threw an exception39 java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@63429932: startup date [Thu Aug 16 17:53:19 CST 2018]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@764faa640 at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:404)41 at org.springframework.context.support.ApplicationListenerDetector.postProcessBeforeDestruction(ApplicationListenerDetector.java:97)42 at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:253)43 at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578)44 at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554)45 at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:961)46 at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523)47 at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:968)48 at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1033)49 at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1009)50 at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:961)51 at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:819)52 at org.springframework.boot.SpringApplication.run(SpringApplication.java:327)53 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1187)54 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1176)55 at com.gxcards.mes.MainWwwWeb.main(MainWwwWeb.java:42)56 Disconnected from the target VM, address: '127.0.0.1:61286', transport: 'socket'
说是在项目中有了相同的 Overriding bean definition for bean ‘restTemplate’，原来是在我的这个项目的pom文件中引用了另一个项目，另一个项目也注入有restTemplate，导致启动报错。把本项目中的引用的另一个项目删除就解决了。
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