ConfigurationClassEnhancer

最新推荐文章于 2024-04-15 00:02:11 发布
最新推荐文章于 2024-04-15 00:02:11 发布
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SpringIOC之ConfigurationClassEnhancer
qq_57756904的博客
12-09 903
总之，ConfigurationClassEnhancer 是 Spring 内部用于处理配置类的增强的重要组件之一，它确保配置类中的 @Bean 方法按照 Spring 的规范工作，以支持应用程序的正确配置和运行。
聊透spring @Configuration配置类
m0_71777195的博客
01-30 2342
本章节我们来探索Spring中一个常用的注解。。那啥是配置类啊，有啥用啊。这个我们得结合实际使用场景来说，通常情况下。加了的配置类内部，都会。为了简化定义，在后续我们称@Bean注解的方法为工厂方法。配置类的奥秘就在这里，Spring会保证多次调用@Bean标注的工厂方法，，这也贯彻了Spring的单例哲学。多次调用创建方法，产生的竟然是同一个对象，这貌似违背了编程的基础原理。怎么可能😱，一定是Spring做了什么，那就跟随着贰师兄的脚步一起解开的神秘面纱吧。
Spring 工具类 ConfigurationClassEnhancer
Details Inside Spring
01-31 2896
概述 Spring中存在这样一个工具类ConfigurationClassEnhancer,它会对应用中每个配置类，也就是一般通过@Configuration注解定义的类进行一个增强。通过增强以后，配置类中使用@Bean注解的bean定义方法就不再是普通的方法了，它们具有了如下跟bean作用域有关的能力，以单例bean为例 ： 1. 它们首次被调用时，相应方法逻辑会被执行用于创建bean实例； 2...
spring ConfigurationClassEnhancer
dezhonger的专栏
07-24 765
类全路径 org.springframework.context.annotation.ConfigurationClassEnhancer，它的作用是什么呢？ 引用https://blog.youkuaiyun.com/andy_zhang2007/article/details/86726507的表述： Spring中存在这样一个工具类ConfigurationClassEnhancer,它会对应...
Spring Boot【原理分析】(4)——ConfigurationClassEnhancer
wwmfeng的专栏
01-04 1711
一、简介Configuration class会在ConfigurationClassPostProcessor中将Configuration class进行强化处理。Spring通过CGLIB进行动态代理。核心类ConfigurationClassEnhancer。二、源码private Enhancer newEnhancer(Class<?> superclass, ClassLoader c
Configuration注解类的增强
qq_35359804的博客
03-01 503
在spring中，以AnnotationConfigApplicationContext方式生成类的时候，会用到Configuration注解。在解析完相关注解(类上有Component ComponentScan Import ImportResource ，方法上有bean注解)，生成beandifinition后，会对Configuration注解类进行增强。 ConfigurationC...
异常描述: java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy at sun.reflect.annotation.AnnotationParser.parseClassArray(AnnotationParser.java:724) at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:531) at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:355) at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:286) at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120) at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72) at java.lang.reflect.Executable.declaredAnnotations(Executable.java:599) at java.lang.reflect.Executable.declaredAnnotations(Executable.java:597) at java.lang.reflect.Executable.getDeclaredAnnotations(Executable.java:588) at java.lang.reflect.Method.getDeclaredAnnotations(Method.java:630) at org.springframework.core.annotation.AnnotationsScanner.getDeclaredAnnotations(AnnotationsScanner.java:453) at org.springframework.core.annotation.AnnotationsScanner.isKnownEmpty(AnnotationsScanner.java:491) at org.springframework.core.annotation.TypeMappedAnnotations.from(TypeMappedAnnotations.java:251) at org.springframework.core.annotation.MergedAnnotations.from(MergedAnnotations.java:351) at org.springframework.core.annotation.MergedAnnotations.from(MergedAnnotations.java:330) at org.springframework.core.annotation.AnnotatedElementUtils.findAnnotations(AnnotatedElementUtils.java:800) at org.springframework.core.annotation.AnnotatedElementUtils.hasAnnotation(AnnotatedElementUtils.java:541) at org.springframework.context.annotation.BeanAnnotationHelper.isBeanAnnotated(BeanAnnotationHelper.java:41) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.isMatch(ConfigurationClassEnhancer.java:407) at org.springframework.context.annotation.ConfigurationClassEnhancer$ConditionalCallbackFilter.accept(ConfigurationClassEnhancer.java:192) at org.springframework.cglib.proxy.Enhancer.emitMethods(Enhancer.java:1217)
03-28
接下来，堆栈涉及Spring框架的部分，比如AnnotationsScanner和ConfigurationClassEnhancer。这说明问题可能出现在Spring处理配置类中的注解时，尤其是在处理@Bean方法的时候。当Spring扫描注解时，如果某个注解引用...
2025-07-15 15:23:26,572 ERROR Startup errors : org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:163) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:745) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:423) at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1317) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) at com.alibaba.nacos.Nacos.main(Nacos.java:35) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) at org.springframework.boot.loader.Launcher.launch(Launcher.java:108) at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:467) Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:142) at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:479) at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:211) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:182) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:160) ... 16 common frames omitted Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'distroFilterRegistration' defined in class path resource [com/alibaba/nacos/naming/web/NamingConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.FilterRegistrationBean]: Factory method 'distroFilterRegistration' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroFilter': Unsatisfied dependency expressed through field 'distroMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroMapper' defined in URL [jar:file:/opt/package/aitransfer/16K_GPU_A/aizt/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.2.3.jar!/com/alibaba/nacos/naming/core/DistroMapper.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serverMemberManager' defined in URL [jar:file:/opt/package/aitransfer/16K_GPU_A/aizt/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-core-2.2.3.jar!/com/alibaba/nacos/core/cluster/ServerMemberManager.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.core.cluster.ServerMemberManager]: Constructor threw exception; nested exception is ErrCode:500, ErrMsg:jmenv.tbsite.net at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:486) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:212) at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:203) at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:97) at org.springframework.boot.web.servlet.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:86) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:260) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:234) at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:53) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5211) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:265) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:430) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ... 21 common frames omitted Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.FilterRegistrationBean]: Factory method 'distroFilterRegistration' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroFilter': Unsatisfied dependency expressed through field 'distroMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroMapper' defined in URL [jar:file:/opt/package/aitransfer/16K_GPU_A/aizt/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.2.3.jar!/com/alibaba/nacos/naming/core/DistroMapper.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serverMemberManager' defined in URL [jar:file:/opt/package/aitransfer/16K_GPU_A/aizt/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-core-2.2.3.jar!/com/alibaba/nacos/core/cluster/ServerMemberManager.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.core.cluster.ServerMemberManager]: Constructor threw exception; nested exception is ErrCode:500, ErrMsg:jmenv.tbsite.net at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ... 61 common frames omitted Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroFilter': Unsatisfied dependency expressed through field 'distroMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'distroMapper' defined in URL [jar:file:/opt/package/aitransfer/16K_GPU_A/aizt/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-naming-2.2.3.jar!/com/alibaba/nacos/naming/core/DistroMapper.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serverMemberManager' defined in URL [jar:file:/opt/package/aitransfer/16K_GPU_A/aizt/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-core-2.2.3.jar!/com/alibaba/nacos/core/cluster/ServerMemberManager.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.core.cluster.ServerMemberManager]: Constructor threw exception; nested exception is ErrCode:500, ErrMsg:jmenv.tbsite.net at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.resolveBeanReference(ConfigurationClassEnhancer.java:362) 再次分析
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