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: default 2 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@764faa6 3 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 failed 6 java.lang.UnsupportedOperationException 7 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@764faa6 28 2018-08-16 17:53:20 org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext:1005 doClose WARN: Exception thrown from LifecycleProcessor on context close 29 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@764faa6 30 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 exception 39 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@764faa6 40 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。