Spring bootstrap + 重试 + 执行器刷新尝试失败
Spring bootstrap + retry + actuator refresh fails the attempt
这是用作参考的 Spring 存储库（我的项目也发生了同样的情况）：https://github.com/spring-guides/gs-centralized-configuration.git
如果我将这些依赖项添加到 complete/configuration-client 模块
implementation 'org.springframework.cloud:spring-cloud-starter-bootstrap'
implementation 'org.springframework:spring-aspects'
implementation 'org.springframework.retry:spring-retry'
将这样的boottstrap.yml添加到同一个模块：
spring:
cloud:
config:
enabled: true
uri: http://localhost:8888
retry:
initial-interval: 2500
max-attempts: 10
max-interval: 7000
multiplier: 1.5
fail-fast: true # line 1
如果我启动配置服务器 (complete/configuration-service) 和具有上述配置的客户端，我将无法通过 actuator/refresh 端点刷新客户端。我收到以下错误：
2022-01-10 12:11:55.412 ERROR 6868 --- [nio-8090-exec-1] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configServicePropertySource' defined in class path resource [org/springframework/cloud/config/client/ConfigServiceBootstrapConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.cloud.config.client.ConfigServicePropertySourceLocator: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader 'app' attempted duplicate class definition for org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf. (org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf is in unnamed module of loader 'app')
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:610) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean[=14=](AbstractBeanFactory.java:335) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:917) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:197) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:114) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:77) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared(SpringApplicationRunListeners.java:63) ~[spring-boot-2.4.3.jar:2.4.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:362) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.cloud.context.refresh.LegacyContextRefresher.addConfigFilesToEnvironment(LegacyContextRefresher.java:60) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.context.refresh.LegacyContextRefresher.updateEnvironment(LegacyContextRefresher.java:46) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.context.refresh.ContextRefresher.refreshEnvironment(ContextRefresher.java:90) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.context.refresh.ContextRefresher.refresh(ContextRefresher.java:83) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.endpoint.RefreshEndpoint.refresh(RefreshEndpoint.java:41) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:77) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:60) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping$ServletWebOperationAdapter.handle(AbstractWebMvcEndpointHandlerMapping.java:290) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping$OperationHandler.handle(AbstractWebMvcEndpointHandlerMapping.java:373) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.4.jar:5.3.4]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) ~[tomcat-embed-core-9.0.43.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.4.jar:5.3.4]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.43.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:887) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1684) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at java.base/java.lang.Thread.run(Thread.java:831) ~[na:na]
Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.cloud.config.client.ConfigServicePropertySourceLocator: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader 'app' attempted duplicate class definition for org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf. (org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf is in unnamed module of loader 'app')
at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:209) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:461) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:340) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:289) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:437) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602) ~[spring-beans-5.3.4.jar:5.3.4]
... 97 common frames omitted
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader 'app' attempted duplicate class definition for org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf. (org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf is in unnamed module of loader 'app')
at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:578) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:363) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:585) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.apply(AbstractClassGenerator.java:110) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.apply(AbstractClassGenerator.java:108) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.internal.LoadingCache.call(LoadingCache.java:54) ~[spring-core-5.3.4.jar:5.3.4]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:572) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:419) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:206) ~[spring-aop-5.3.4.jar:5.3.4]
... 104 common frames omitted
Caused by: java.lang.LinkageError: loader 'app' attempted duplicate class definition for org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf. (org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf is in unnamed module of loader 'app')
at java.base/java.lang.ClassLoader.defineClass0(Native Method) ~[na:na]
at java.base/java.lang.System.defineClass(System.java:2193) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup$ClassDefiner.defineClass(MethodHandles.java:2446) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup$ClassDefiner.defineClass(MethodHandles.java:2423) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup.defineClass(MethodHandles.java:1850) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:575) ~[spring-core-5.3.4.jar:5.3.4]
... 118 common frames omitted
如果我在 bootstrap.yml 中删除 line 1，刷新尝试就会成功。
Spring重试用法有没有错误？
您不需要添加以下对 complete/configuration-client 模块的依赖，因为您已经添加了 spring-cloud-starter-config.
implementation 'org.springframework.cloud:spring-cloud-starter-bootstrap'
您可以将配置添加到 application.properties 文件 complete/configuration-client，如下所示：
spring.config.import=optional:configserver:http://localhost:8888/
management.endpoints.web.exposure.include=*
logging.level.root=debug
spring.cloud.config.fail-fast=true
spring.cloud.config.uri=http://localhost:8888
spring.cloud.config.enabled=true
spring.cloud.config.retry.initial-interval=2500
spring.cloud.config.retry.max-attempts=10
spring.cloud.config.retry.max-interval=7000
spring.cloud.config.retry.multiplier=1.5
bootstrap.yml 是 spring-cloud-starter-[ 的配置文件=30=] 但是你不需要这个依赖和这个配置文件。
我测试了它并为我工作。
问题出在 Java 版本中。当我从 Java 16 切换到 Java 8.
时它消失了
这是用作参考的 Spring 存储库（我的项目也发生了同样的情况）：https://github.com/spring-guides/gs-centralized-configuration.git
如果我将这些依赖项添加到 complete/configuration-client 模块
implementation 'org.springframework.cloud:spring-cloud-starter-bootstrap'
implementation 'org.springframework:spring-aspects'
implementation 'org.springframework.retry:spring-retry'
将这样的boottstrap.yml添加到同一个模块：
spring:
cloud:
config:
enabled: true
uri: http://localhost:8888
retry:
initial-interval: 2500
max-attempts: 10
max-interval: 7000
multiplier: 1.5
fail-fast: true # line 1
如果我启动配置服务器 (complete/configuration-service) 和具有上述配置的客户端，我将无法通过 actuator/refresh 端点刷新客户端。我收到以下错误：
2022-01-10 12:11:55.412 ERROR 6868 --- [nio-8090-exec-1] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configServicePropertySource' defined in class path resource [org/springframework/cloud/config/client/ConfigServiceBootstrapConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.cloud.config.client.ConfigServicePropertySourceLocator: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader 'app' attempted duplicate class definition for org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf. (org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf is in unnamed module of loader 'app')
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:610) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean[=14=](AbstractBeanFactory.java:335) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:917) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:197) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:114) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:77) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131) ~[spring-context-5.3.4.jar:5.3.4]
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared(SpringApplicationRunListeners.java:63) ~[spring-boot-2.4.3.jar:2.4.3]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:362) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144) ~[spring-boot-2.4.3.jar:2.4.3]
at org.springframework.cloud.context.refresh.LegacyContextRefresher.addConfigFilesToEnvironment(LegacyContextRefresher.java:60) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.context.refresh.LegacyContextRefresher.updateEnvironment(LegacyContextRefresher.java:46) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.context.refresh.ContextRefresher.refreshEnvironment(ContextRefresher.java:90) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.context.refresh.ContextRefresher.refresh(ContextRefresher.java:83) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at org.springframework.cloud.endpoint.RefreshEndpoint.refresh(RefreshEndpoint.java:41) ~[spring-cloud-context-3.0.0.jar:3.0.0]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:77) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:60) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping$ServletWebOperationAdapter.handle(AbstractWebMvcEndpointHandlerMapping.java:290) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping$OperationHandler.handle(AbstractWebMvcEndpointHandlerMapping.java:373) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.4.jar:5.3.4]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.4.jar:5.3.4]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) ~[tomcat-embed-core-9.0.43.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.4.jar:5.3.4]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.43.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93) ~[spring-boot-actuator-2.4.3.jar:2.4.3]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.4.jar:5.3.4]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.4.jar:5.3.4]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:887) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1684) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.43.jar:9.0.43]
at java.base/java.lang.Thread.run(Thread.java:831) ~[na:na]
Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.cloud.config.client.ConfigServicePropertySourceLocator: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader 'app' attempted duplicate class definition for org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf. (org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf is in unnamed module of loader 'app')
at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:209) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:461) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:340) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:289) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:437) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790) ~[spring-beans-5.3.4.jar:5.3.4]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602) ~[spring-beans-5.3.4.jar:5.3.4]
... 97 common frames omitted
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.LinkageError-->loader 'app' attempted duplicate class definition for org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf. (org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf is in unnamed module of loader 'app')
at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:578) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:363) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:585) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.apply(AbstractClassGenerator.java:110) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.apply(AbstractClassGenerator.java:108) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.internal.LoadingCache.call(LoadingCache.java:54) ~[spring-core-5.3.4.jar:5.3.4]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:572) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:419) ~[spring-core-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:206) ~[spring-aop-5.3.4.jar:5.3.4]
... 104 common frames omitted
Caused by: java.lang.LinkageError: loader 'app' attempted duplicate class definition for org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf. (org.springframework.cloud.config.client.ConfigServicePropertySourceLocator$$EnhancerBySpringCGLIB$$d7f246cf is in unnamed module of loader 'app')
at java.base/java.lang.ClassLoader.defineClass0(Native Method) ~[na:na]
at java.base/java.lang.System.defineClass(System.java:2193) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup$ClassDefiner.defineClass(MethodHandles.java:2446) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup$ClassDefiner.defineClass(MethodHandles.java:2423) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup.defineClass(MethodHandles.java:1850) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:575) ~[spring-core-5.3.4.jar:5.3.4]
... 118 common frames omitted
如果我在 bootstrap.yml 中删除 line 1，刷新尝试就会成功。
Spring重试用法有没有错误？
您不需要添加以下对 complete/configuration-client 模块的依赖，因为您已经添加了 spring-cloud-starter-config.
implementation 'org.springframework.cloud:spring-cloud-starter-bootstrap'
您可以将配置添加到 application.properties 文件 complete/configuration-client，如下所示：
spring.config.import=optional:configserver:http://localhost:8888/
management.endpoints.web.exposure.include=*
logging.level.root=debug
spring.cloud.config.fail-fast=true
spring.cloud.config.uri=http://localhost:8888
spring.cloud.config.enabled=true
spring.cloud.config.retry.initial-interval=2500
spring.cloud.config.retry.max-attempts=10
spring.cloud.config.retry.max-interval=7000
spring.cloud.config.retry.multiplier=1.5
bootstrap.yml 是 spring-cloud-starter-[ 的配置文件=30=] 但是你不需要这个依赖和这个配置文件。 我测试了它并为我工作。
问题出在 Java 版本中。当我从 Java 16 切换到 Java 8.
时它消失了