1. 问题简述

今天给大家看一下，关于SpringCloud报错，Unsatisfied dependency expressed through field ‘propertySourceLocators’ 的描述，这里只是其中一个报错 。这里也有一个很明显的报错：Application failed to connect to Nacos server: “nacos:8848”。就是说你办法连接到nacos 的配置。报的错误有点多，你想看结论请看第三部分。

2. 报错显示

Application failed to connect to Nacos server: "nacos:8848"

Action:

Please check your Nacos server config

2022-06-26 14:35:07.007 ERROR 12408 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration': Unsatisfied dependency expressed through field 'propertySourceLocators'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'nacosPropertySourceLocator' defined in class path resource [com/alibaba/cloud/nacos/NacosConfigBootstrapConfiguration.class]: Unsatisfied dependency expressed through method 'nacosPropertySourceLocator' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nacosConfigManager' defined in class path resource [com/alibaba/cloud/nacos/NacosConfigBootstrapConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.cloud.nacos.NacosConfigManager]: Factory method 'nacosConfigManager' threw exception; nested exception is com.alibaba.cloud.nacos.diagnostics.analyzer.NacosConnectionFailureException: java.lang.reflect.InvocationTargetException
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1425) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:405) [spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:140) ~[spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:212) ~[spring-cloud-context-2.2.7.RELEASE.jar:2.2.7.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:117) ~[spring-cloud-context-2.2.7.RELEASE.jar:2.2.7.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:74) ~[spring-cloud-context-2.2.7.RELEASE.jar:2.2.7.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) ~[spring-context-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:80) ~[spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) ~[spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:345) [spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) [spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.9.RELEASE.jar:2.3.9.RELEASE]
	at cn.itcast.user.UserApplication.main(UserApplication.java:11) [classes/:na]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'nacosPropertySourceLocator' defined in class path resource [com/alibaba/cloud/nacos/NacosConfigBootstrapConfiguration.class]: Unsatisfied dependency expressed through method 'nacosPropertySourceLocator' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nacosConfigManager' defined in class path resource [com/alibaba/cloud/nacos/NacosConfigBootstrapConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.cloud.nacos.NacosConfigManager]: Factory method 'nacosConfigManager' threw exception; nested exception is com.alibaba.cloud.nacos.diagnostics.analyzer.NacosConnectionFailureException: java.lang.reflect.InvocationTargetException
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:799) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:540) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1341) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1181) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1525) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1489) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1378) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1265) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	... 32 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nacosConfigManager' defined in class path resource [com/alibaba/cloud/nacos/NacosConfigBootstrapConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.cloud.nacos.NacosConfigManager]: Factory method 'nacosConfigManager' threw exception; nested exception is com.alibaba.cloud.nacos.diagnostics.analyzer.NacosConnectionFailureException: java.lang.reflect.InvocationTargetException
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:657) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:637) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1341) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1181) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1307) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:886) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:790) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	... 48 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.cloud.nacos.NacosConfigManager]: Factory method 'nacosConfigManager' threw exception; nested exception is com.alibaba.cloud.nacos.diagnostics.analyzer.NacosConnectionFailureException: java.lang.reflect.InvocationTargetException
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:652) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	... 62 common frames omitted
Caused by: com.alibaba.cloud.nacos.diagnostics.analyzer.NacosConnectionFailureException: java.lang.reflect.InvocationTargetException
	at com.alibaba.cloud.nacos.NacosConfigManager.createConfigService(NacosConfigManager.java:62) ~[spring-cloud-starter-alibaba-nacos-config-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at com.alibaba.cloud.nacos.NacosConfigManager.<init>(NacosConfigManager.java:43) ~[spring-cloud-starter-alibaba-nacos-config-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at com.alibaba.cloud.nacos.NacosConfigBootstrapConfiguration.nacosConfigManager(NacosConfigBootstrapConfiguration.java:43) ~[spring-cloud-starter-alibaba-nacos-config-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.13.RELEASE.jar:5.2.13.RELEASE]
	... 63 common frames omitted
Caused by: com.alibaba.nacos.api.exception.NacosException: java.lang.reflect.InvocationTargetException
	at com.alibaba.nacos.api.config.ConfigFactory.createConfigService(ConfigFactory.java:46) ~[nacos-api-1.4.1.jar:na]
	at com.alibaba.nacos.api.NacosFactory.createConfigService(NacosFactory.java:44) ~[nacos-api-1.4.1.jar:na]
	at com.alibaba.cloud.nacos.NacosConfigManager.createConfigService(NacosConfigManager.java:55) ~[spring-cloud-starter-alibaba-nacos-config-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	... 70 common frames omitted
Caused by: java.lang.reflect.InvocationTargetException: null
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_161]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_161]
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_161]
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_161]
	at com.alibaba.nacos.api.config.ConfigFactory.createConfigService(ConfigFactory.java:43) ~[nacos-api-1.4.1.jar:na]
	... 72 common frames omitted
Caused by: java.lang.IllegalArgumentException: The IPv4 address("nacos") is incorrect.
	at com.alibaba.nacos.common.utils.IPUtil.splitIPPortStr(IPUtil.java:152) ~[nacos-common-1.4.1.jar:na]
	at com.alibaba.nacos.client.config.impl.ServerListManager.<init>(ServerListManager.java:162) ~[nacos-client-1.4.1.jar:na]
	at com.alibaba.nacos.client.config.http.ServerHttpAgent.<init>(ServerHttpAgent.java:274) ~[nacos-client-1.4.1.jar:na]
	at com.alibaba.nacos.client.config.NacosConfigService.<init>(NacosConfigService.java:86) ~[nacos-client-1.4.1.jar:na]
	... 77 common frames omitted

2022-06-26 14:35:07.007  WARN 12408 --- [       Thread-5] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Start destroying common HttpClient
2022-06-26 14:35:07.007  WARN 12408 --- [       Thread-5] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Destruction of the end

3. 问题说明

这里其实就是一个很小的错误，就是你端口号可能写错了，你看看你的端口号，我是检查到了自己的端口写错了。希望能帮到你。