Error creating bean with name ‘configurationPropertiesBeans‘ defined in class path resource异常分析

你的名字 2022-12-28 07:15 138阅读 0赞

### Error creating bean with name 'configurationPropertiesBeans' defined in class path resource异常分析 ###

在学习使用alibaba的nacos过程中，编写了一个Spring Cloud的demo实现服务注册，结果一启动项目，就报了如下异常：

2020-12-15 12:50:43.215  WARN 24520 --- [           main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurationPropertiesBeans' defined in class path resource [org/springframework/cloud/autoconfigure/ConfigurationPropertiesRebinderAutoConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [sun.misc.Launcher$AppClassLoader@764c12b6]
    2020-12-15 12:50:43.222  INFO 24520 --- [           main] ConditionEvaluationReportLoggingListener : 
    
    Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
    2020-12-15 12:50:43.240 ERROR 24520 --- [           main] o.s.boot.SpringApplication               : Application run failed
    
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurationPropertiesBeans' defined in class path resource [org/springframework/cloud/autoconfigure/ConfigurationPropertiesRebinderAutoConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [sun.misc.Launcher$AppClassLoader@764c12b6]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:586) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:244) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:767) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:572) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:212) [spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:117) [spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:74) [spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) [spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) [spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) [spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) [spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:63) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at java.util.ArrayList.forEach(Unknown Source) ~[na:1.8.0_144]
    	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:362) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at com.wongoing.NacosServer1Application.main(NacosServer1Application.java:16) ~[classes/:na]
    Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [sun.misc.Launcher$AppClassLoader@764c12b6]
    	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:481) ~[spring-core-5.3.2.jar:5.3.2]
    	at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:321) ~[spring-core-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.buildLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:232) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:210) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(InitDestroyAnnotationBeanPostProcessor.java:149) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:294) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1100) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:583) ~[spring-beans-5.3.2.jar:5.3.2]
    	... 31 common frames omitted
    Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
    	at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_144]
    	at java.lang.Class.privateGetDeclaredMethods(Unknown Source) ~[na:1.8.0_144]
    	at java.lang.Class.getDeclaredMethods(Unknown Source) ~[na:1.8.0_144]
    	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.3.2.jar:5.3.2]
    	... 38 common frames omitted
    Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.properties.ConfigurationBeanFactoryMetadata
    	at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_144]
    	at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_144]
    	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[na:1.8.0_144]
    	at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_144]
    	... 42 common frames omitted
    
    2020-12-15 12:50:43.242 ERROR 24520 --- [           main] o.s.boot.SpringApplication               : Application run failed
    
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurationPropertiesBeans' defined in class path resource [org/springframework/cloud/autoconfigure/ConfigurationPropertiesRebinderAutoConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [sun.misc.Launcher$AppClassLoader@764c12b6]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:586) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:244) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:767) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:572) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:212) ~[spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:117) ~[spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:74) ~[spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:63) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at java.util.ArrayList.forEach(Unknown Source) ~[na:1.8.0_144]
    	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62) ~[spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:362) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298) [spring-boot-2.4.2-SNAPSHOT.jar:2.4.2-SNAPSHOT]
    	at com.wongoing.NacosServer1Application.main(NacosServer1Application.java:16) [classes/:na]
    Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [sun.misc.Launcher$AppClassLoader@764c12b6]
    	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:481) ~[spring-core-5.3.2.jar:5.3.2]
    	at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:321) ~[spring-core-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.buildLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:232) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:210) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(InitDestroyAnnotationBeanPostProcessor.java:149) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:294) ~[spring-context-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1100) ~[spring-beans-5.3.2.jar:5.3.2]
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:583) ~[spring-beans-5.3.2.jar:5.3.2]
    	... 31 common frames omitted
    Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
    	at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_144]
    	at java.lang.Class.privateGetDeclaredMethods(Unknown Source) ~[na:1.8.0_144]
    	at java.lang.Class.getDeclaredMethods(Unknown Source) ~[na:1.8.0_144]
    	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.3.2.jar:5.3.2]
    	... 38 common frames omitted
    Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.properties.ConfigurationBeanFactoryMetadata
    	at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_144]
    	at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_144]
    	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[na:1.8.0_144]
    	at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_144]
    	... 42 common frames omitted

> 通过仔细阅读Nacos手册与分析pom.xml发现是spring-boot的版本与nacos版本不一致的导致。

原pom.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    	<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>2.4.1-SNAPSHOT</version>
    	</parent>
    	<groupId>wongoing</groupId>
    	<artifactId>nacos</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<name>NacosServer-1</name>
    	<description>Demo project for Spring Boot</description>
    
    	<properties>
    		<java.version>1.8</java.version>
    	</properties>
    
    	<dependencies>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    		
    		<dependency>
    		    <groupId>com.alibaba.cloud</groupId>
    		    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    		    <version>2.2.3.RELEASE</version>
    		</dependency>
    
    	</dependencies>
    
    	<build>
    		<plugins>
    			<plugin>
    				<groupId>org.springframework.boot</groupId>
    				<artifactId>spring-boot-maven-plugin</artifactId>
    			</plugin>
    		</plugins>
    	</build>
    
    	<repositories>
    		<repository>
    			<id>spring-milestones</id>
    			<name>Spring Milestones</name>
    			<url>https://repo.spring.io/milestone</url>
    		</repository>
    		<repository>
    			<id>spring-snapshots</id>
    			<name>Spring Snapshots</name>
    			<url>https://repo.spring.io/snapshot</url>
    			<snapshots>
    				<enabled>true</enabled>
    			</snapshots>
    		</repository>
    	</repositories>
    	<pluginRepositories>
    		<pluginRepository>
    			<id>spring-milestones</id>
    			<name>Spring Milestones</name>
    			<url>https://repo.spring.io/milestone</url>
    		</pluginRepository>
    		<pluginRepository>
    			<id>spring-snapshots</id>
    			<name>Spring Snapshots</name>
    			<url>https://repo.spring.io/snapshot</url>
    			<snapshots>
    				<enabled>true</enabled>
    			</snapshots>
    		</pluginRepository>
    	</pluginRepositories>
    
    </project>

> 因为使用的事Spring Tool Suite 4直接创建的Spring Boot项目，默认选择了最高版本2.4.1-SNAPSHOT，而当前nacos的最高版本是2.2.3.RELEASE，因此只要把Spring Boot的版本降至与nacos版本一致就可以了。

修改后的pom.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    	<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>2.2.3.RELEASE</version>
    	</parent>
    	<groupId>wongoing</groupId>
    	<artifactId>nacos</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<name>NacosServer-1</name>
    	<description>Demo project for Spring Boot</description>
    
    	<properties>
    		<java.version>1.8</java.version>
    	</properties>
    
    	<dependencies>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    		
    		<dependency>
    		    <groupId>com.alibaba.cloud</groupId>
    		    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    		    <version>2.2.3.RELEASE</version>
    		</dependency>
    
    	</dependencies>
    
    	<build>
    		<plugins>
    			<plugin>
    				<groupId>org.springframework.boot</groupId>
    				<artifactId>spring-boot-maven-plugin</artifactId>
    			</plugin>
    		</plugins>
    	</build>
    
    	<repositories>
    		<repository>
    			<id>spring-milestones</id>
    			<name>Spring Milestones</name>
    			<url>https://repo.spring.io/milestone</url>
    		</repository>
    		<repository>
    			<id>spring-snapshots</id>
    			<name>Spring Snapshots</name>
    			<url>https://repo.spring.io/snapshot</url>
    			<snapshots>
    				<enabled>true</enabled>
    			</snapshots>
    		</repository>
    	</repositories>
    	<pluginRepositories>
    		<pluginRepository>
    			<id>spring-milestones</id>
    			<name>Spring Milestones</name>
    			<url>https://repo.spring.io/milestone</url>
    		</pluginRepository>
    		<pluginRepository>
    			<id>spring-snapshots</id>
    			<name>Spring Snapshots</name>
    			<url>https://repo.spring.io/snapshot</url>
    			<snapshots>
    				<enabled>true</enabled>
    			</snapshots>
    		</pluginRepository>
    	</pluginRepositories>
    
    </project>

启动后，就能在Nacos管理界面的服务列表中看到这个服务了。如下图：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3psYmRtbQ_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3psYmRtbQ_size_16_color_FFFFFF_t_70]: /images/20221120/aabf429873fd4bcb9e7f313e81067ae4.png

Error creating bean with name ‘configurationPropertiesBeans‘ defined in class path resource异常分析

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