springcloud alibaba nacos config无法加载配置文件的解决方案

springcloud alibaba nacos config无法加载配置文件

直接说结论：从springboot 2.4以后，就默认不加载bootstrap配置文件了

直接就导致，无论你怎么按网上的教程去在bootstrap.properties或bootstrap.yml里面配置springcloud nacos的信息，就是无法获取配置文件

springcloud cloud alibaba使用的版本：2021.0.1.0

springboot版本：2.6.3

解决方案

方案一：直接在启动环境里面配置下

spring.cloud.bootstrap.enabled=true

方案二：添加依赖

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-bootstrap</artifactId>
</dependency>

• 以上方案都行
• 贴上spring官方解释

• 表现：
• 类似如下写法，在启动时，报错

"C:\Program Files\Java\jdk1.8.0_202\bin\java.exe" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:54163,suspend=y,server=n -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -javaagent:C:\Users\yanghao\AppData\Local\JetBrains\IntelliJIdea2021.2\captureAgent\debugger-agent.jar -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_202\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_202\jre\lib\rt.jar;D:\workspace\demo\spa\service-consumer\target\classes;D:\dev_software\repository-fb\org\springframework\boot\spring-boot-starter-web\2.6.7\spring-boot-starter-web-2.6.7.jar;D:\dev_software\repository-fb\org\springframework\boot\spring-boot-starter-json\2.6.7\spring-boot-starter-json-2.6.7.jar;D:\dev_software\repository-fb\com\fasterxml\jackson\core\jackson-databind\2.13.1\jackson-databind-2.13.1.jar;D:\dev_software\repository-fb\com\fasterxml\jackson\core\jackson-annotations\2.13.1\jackson-annotations-2.13.1.jar;D:\dev_software\repository-fb\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.13.1\jackson-datatype-jdk8-2.13.1.jar;D:\dev_software\repository-fb\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.13.1\jackson-datatype-jsr310-2.13.1.jar;D:\dev_software\repository-fb\com\fasterxml\jackson\module\jackson-module-parameter-names\2.13.1\jackson-module-parameter-names-2.13.1.jar;D:\dev_software\repository-fb\org\springframework\boot\spring-boot-starter-tomcat\2.6.7\spring-boot-starter-tomcat-2.6.7.jar;D:\dev_software\repository-fb\org\apache\tomcat\embed\tomcat-embed-core\9.0.62\tomcat-embed-core-9.0.62.jar;D:\dev_software\repository-fb\org\apache\tomcat\embed\tomcat-embed-el\9.0.62\tomcat-embed-el-9.0.62.jar;D:\dev_software\repository-fb\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.62\tomcat-embed-websocket-9.0.62.jar;D:\dev_software\repository-fb\org\springframework\spring-web\5.3.15\spring-web-5.3.15.jar;D:\dev_software\repository-fb\org\springframework\spring-beans\5.3.15\spring-beans-5.3.15.jar;D:\dev_software\repository-fb\org\springframework\spring-webmvc\5.3.15\spring-webmvc-5.3.15.jar;D:\dev_software\repository-fb\org\springframework\spring-aop\5.3.15\spring-aop-5.3.15.jar;D:\dev_software\repository-fb\org\springframework\spring-context\5.3.15\spring-context-5.3.15.jar;D:\dev_software\repository-fb\org\springframework\spring-expression\5.3.15\spring-expression-5.3.15.jar;D:\dev_software\repository-fb\com\alibaba\cloud\spring-cloud-starter-alibaba-nacos-discovery\2021.0.1.0\spring-cloud-starter-alibaba-nacos-discovery-2021.0.1.0.jar;D:\dev_software\repository-fb\com\alibaba\cloud\spring-cloud-alibaba-commons\2021.0.1.0\spring-cloud-alibaba-commons-2021.0.1.0.jar;D:\dev_software\repository-fb\com\alibaba\nacos\nacos-client\1.4.2\nacos-client-1.4.2.jar;D:\dev_software\repository-fb\com\alibaba\nacos\nacos-common\1.4.2\nacos-common-1.4.2.jar;D:\dev_software\repository-fb\commons-io\commons-io\2.7\commons-io-2.7.jar;D:\dev_software\repository-fb\org\apache\httpcomponents\httpasyncclient\4.1.5\httpasyncclient-4.1.5.jar;D:\dev_software\repository-fb\org\apache\httpcomponents\httpcore\4.4.15\httpcore-4.4.15.jar;D:\dev_software\repository-fb\org\apache\httpcomponents\httpcore-nio\4.4.15\httpcore-nio-4.4.15.jar;D:\dev_software\repository-fb\org\apache\httpcomponents\httpclient\4.5.13\httpclient-4.5.13.jar;D:\dev_software\repository-fb\com\alibaba\nacos\nacos-api\1.4.2\nacos-api-1.4.2.jar;D:\dev_software\repository-fb\com\google\guava\guava\30.1-jre\guava-30.1-jre.jar;D:\dev_software\repository-fb\com\google\guava\failureaccess\1.0.1\failureaccess-1.0.1.jar;D:\dev_software\repository-fb\com\google\guava\listenablefuture\9999.0-empty-to-avoid-conflict-with-guava\listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar;D:\dev_software\repository-fb\com\google\code\findbugs\jsr305\3.0.2\jsr305-3.0.2.jar;D:\dev_software\repository-fb\org\checkerframework\checker-qual\3.5.0\checker-qual-3.5.0.jar;D:\dev_software\repository-fb\com\google\errorprone\error_prone_annotations\2.3.4\error_prone_annotations-2.3.4.jar;D:\dev_software\repository-fb\com\google\j2objc\j2objc-annotations\1.3\j2objc-annotations-1.3.jar;D:\dev_software\repository-fb\commons-codec\commons-codec\1.15\commons-codec-1.15.jar;D:\dev_software\repository-fb\com\fasterxml\jackson\core\jackson-core\2.13.1\jackson-core-2.13.1.jar;D:\dev_software\repository-fb\io\prometheus\simpleclient\0.12.0\simpleclient-0.12.0.jar;D:\dev_software\repository-fb\io\prometheus\simpleclient_tracer_otel\0.12.0\simpleclient_tracer_otel-0.12.0.jar;D:\dev_software\repository-fb\io\prometheus\simpleclient_tracer_common\0.12.0\simpleclient_tracer_common-0.12.0.jar;D:\dev_software\repository-fb\io\prometheus\simpleclient_tracer_otel_agent\0.12.0\simpleclient_tracer_otel_agent-0.12.0.jar;D:\dev_software\repository-fb\com\alibaba\spring\spring-context-support\1.0.11\spring-context-support-1.0.11.jar;D:\dev_software\repository-fb\org\springframework\cloud\spring-cloud-commons\3.1.1\spring-cloud-commons-3.1.1.jar;D:\dev_software\repository-fb\org\springframework\security\spring-security-crypto\5.6.1\spring-security-crypto-5.6.1.jar;D:\dev_software\repository-fb\org\springframework\cloud\spring-cloud-context\3.1.1\spring-cloud-context-3.1.1.jar;D:\dev_software\repository-fb\org\springframework\cloud\spring-cloud-starter-loadbalancer\3.1.1\spring-cloud-starter-loadbalancer-3.1.1.jar;D:\dev_software\repository-fb\org\springframework\cloud\spring-cloud-starter\3.1.1\spring-cloud-starter-3.1.1.jar;D:\dev_software\repository-fb\org\springframework\security\spring-security-rsa\1.0.10.RELEASE\spring-security-rsa-1.0.10.RELEASE.jar;D:\dev_software\repository-fb\org\bouncycastle\bcpkix-jdk15on\1.68\bcpkix-jdk15on-1.68.jar;D:\dev_software\repository-fb\org\bouncycastle\bcprov-jdk15on\1.68\bcprov-jdk15on-1.68.jar;D:\dev_software\repository-fb\org\springframework\cloud\spring-cloud-loadbalancer\3.1.1\spring-cloud-loadbalancer-3.1.1.jar;D:\dev_software\repository-fb\io\projectreactor\reactor-core\3.4.14\reactor-core-3.4.14.jar;D:\dev_software\repository-fb\org\reactivestreams\reactive-streams\1.0.3\reactive-streams-1.0.3.jar;D:\dev_software\repository-fb\io\projectreactor\addons\reactor-extra\3.4.6\reactor-extra-3.4.6.jar;D:\dev_software\repository-fb\org\springframework\boot\spring-boot-starter-cache\2.6.7\spring-boot-starter-cache-2.6.7.jar;D:\dev_software\repository-fb\org\springframework\spring-context-support\5.3.15\spring-context-support-5.3.15.jar;D:\dev_software\repository-fb\com\stoyanr\evictor\1.0.0\evictor-1.0.0.jar;D:\dev_software\repository-fb\com\alibaba\cloud\spring-cloud-starter-alibaba-nacos-config\2021.0.1.0\spring-cloud-starter-alibaba-nacos-config-2021.0.1.0.jar;D:\dev_software\repository-fb\org\slf4j\slf4j-api\1.7.36\slf4j-api-1.7.36.jar;D:\dev_software\repository-fb\org\springframework\spring-core\5.3.15\spring-core-5.3.15.jar;D:\dev_software\repository-fb\org\springframework\spring-jcl\5.3.15\spring-jcl-5.3.15.jar;D:\dev_software\repository-fb\org\springframework\boot\spring-boot-starter\2.6.7\spring-boot-starter-2.6.7.jar;D:\dev_software\repository-fb\org\springframework\boot\spring-boot\2.6.7\spring-boot-2.6.7.jar;D:\dev_software\repository-fb\org\springframework\boot\spring-boot-autoconfigure\2.6.7\spring-boot-autoconfigure-2.6.7.jar;D:\dev_software\repository-fb\org\springframework\boot\spring-boot-starter-logging\2.6.7\spring-boot-starter-logging-2.6.7.jar;D:\dev_software\repository-fb\ch\qos\logback\logback-classic\1.2.11\logback-classic-1.2.11.jar;D:\dev_software\repository-fb\ch\qos\logback\logback-core\1.2.11\logback-core-1.2.11.jar;D:\dev_software\repository-fb\org\apache\logging\log4j\log4j-to-slf4j\2.17.1\log4j-to-slf4j-2.17.1.jar;D:\dev_software\repository-fb\org\apache\logging\log4j\log4j-api\2.17.1\log4j-api-2.17.1.jar;D:\dev_software\repository-fb\org\slf4j\jul-to-slf4j\1.7.36\jul-to-slf4j-1.7.36.jar;D:\dev_software\repository-fb\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;D:\dev_software\repository-fb\org\yaml\snakeyaml\1.29\snakeyaml-1.29.jar;D:\Program Files\JetBrains\IntelliJ IDEA 2020.3.2\lib\idea_rt.jar" com.dm.serviceconsumer.ServiceConsumerApplication
Connected to the target VM, address: '127.0.0.1:54163', transport: 'socket'

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.6.7)

2022-05-06 15:50:48.261  INFO 21028 --- [           main] c.d.s.ServiceConsumerApplication         : Starting ServiceConsumerApplication using Java 1.8.0_202 on YANGHAO with PID 21028 (D:\workspace\demo\spa\service-consumer\target\classes started by yanghao in D:\workspace\demo\spa)
2022-05-06 15:50:48.265  INFO 21028 --- [           main] c.d.s.ServiceConsumerApplication         : No active profile set, falling back to 1 default profile: "default"
2022-05-06 15:50:48.895  INFO 21028 --- [           main] o.s.cloud.context.scope.GenericScope     : BeanFactory id=c3d3be9c-65d4-3abc-9f25-33f1f6997820
2022-05-06 15:50:49.111  INFO 21028 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8030 (http)
2022-05-06 15:50:49.119  INFO 21028 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2022-05-06 15:50:49.120  INFO 21028 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.62]
2022-05-06 15:50:49.277  INFO 21028 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2022-05-06 15:50:49.277  INFO 21028 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 973 ms
2022-05-06 15:50:50.461  WARN 21028 --- [           main] iguration$LoadBalancerCaffeineWarnLogger : Spring Cloud LoadBalancer is currently working with the default cache. While this cache implementation is useful for development and tests, it's recommended to use Caffeine cache in production.You can switch to using Caffeine cache, by adding it and org.springframework.cache.caffeine.CaffeineCacheManager to the classpath.
2022-05-06 15:50:50.683 ERROR 21028 --- [           main] c.a.cloud.nacos.discovery.NacosWatch     : namingService subscribe failed, properties:NacosDiscoveryProperties{serverAddr='127.0.0.1:8848', username='nacos', password='nacos', endpoint='', namespace='public', watchDelay=30000, logName='', service='', weight=1.0, clusterName='DEFAULT', group='DEFAULT_GROUP', namingLoadCacheAtStart='false', metadata={preserved.register.source=SPRING_CLOUD}, registerEnabled=true, ip='192.168.101.57', networkInterface='', port=-1, secure=false, accessKey='', secretKey='', heartBeatInterval=null, heartBeatTimeout=null, ipDeleteTimeout=null, instanceEnabled=true, ephemeral=true, failureToleranceEnabled=false}, ipDeleteTimeout=null, failFast=true}

java.lang.IllegalArgumentException: Param 'serviceName' is illegal, serviceName is blank
    at com.alibaba.nacos.api.naming.utils.NamingUtils.getGroupedName(NamingUtils.java:47) ~[nacos-api-1.4.2.jar:na]
    at com.alibaba.nacos.client.naming.NacosNamingService.subscribe(NacosNamingService.java:457) ~[nacos-client-1.4.2.jar:na]
    at com.alibaba.cloud.nacos.discovery.NacosWatch.start(NacosWatch.java:133) ~[spring-cloud-starter-alibaba-nacos-discovery-2021.0.1.0.jar:2021.0.1.0]
    at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) [spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) [spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) [spring-context-5.3.15.jar:5.3.15]
    at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_202]
    at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) [spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) [spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) ~[spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) ~[spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) ~[spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-boot-2.6.7.jar:2.6.7]
    at com.dm.serviceconsumer.ServiceConsumerApplication.main(ServiceConsumerApplication.java:10) ~[classes/:na]

2022-05-06 15:50:50.701  INFO 21028 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8030 (http) with context path ''
2022-05-06 15:50:50.704  WARN 21028 --- [           main] c.a.c.n.registry.NacosServiceRegistry    : No service to register for nacos client...
2022-05-06 15:50:51.087  WARN 21028 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.faceController': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'user.age' in value "${user.age}"
2022-05-06 15:50:51.088  INFO 21028 --- [           main] c.a.c.n.registry.NacosServiceRegistry    : De-registering from Nacos Server now...
2022-05-06 15:50:51.088  WARN 21028 --- [           main] c.a.c.n.registry.NacosServiceRegistry    : No dom to de-register for nacos client...
2022-05-06 15:50:57.216 ERROR 21028 --- [           main] c.a.cloud.nacos.discovery.NacosWatch     : namingService unsubscribe failed, properties:NacosDiscoveryProperties{serverAddr='127.0.0.1:8848', username='nacos', password='nacos', endpoint='', namespace='public', watchDelay=30000, logName='', service='', weight=1.0, clusterName='DEFAULT', group='DEFAULT_GROUP', namingLoadCacheAtStart='false', metadata={preserved.register.source=SPRING_CLOUD}, registerEnabled=true, ip='192.168.101.57', networkInterface='', port=8030, secure=false, accessKey='', secretKey='', heartBeatInterval=null, heartBeatTimeout=null, ipDeleteTimeout=null, instanceEnabled=true, ephemeral=true, failureToleranceEnabled=false}, ipDeleteTimeout=null, failFast=true}

java.lang.IllegalArgumentException: Param 'serviceName' is illegal, serviceName is blank
    at com.alibaba.nacos.api.naming.utils.NamingUtils.getGroupedName(NamingUtils.java:47) ~[nacos-api-1.4.2.jar:na]
    at com.alibaba.nacos.client.naming.NacosNamingService.unsubscribe(NacosNamingService.java:479) ~[nacos-client-1.4.2.jar:na]
    at com.alibaba.cloud.nacos.discovery.NacosWatch.stop(NacosWatch.java:176) [spring-cloud-starter-alibaba-nacos-discovery-2021.0.1.0.jar:2021.0.1.0]
    at com.alibaba.cloud.nacos.discovery.NacosWatch.destroy(NacosWatch.java:206) [spring-cloud-starter-alibaba-nacos-discovery-2021.0.1.0.jar:2021.0.1.0]
    at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:212) [spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:587) [spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:559) [spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1161) [spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:520) [spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1154) [spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1106) [spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:596) [spring-context-5.3.15.jar:5.3.15]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) [spring-boot-2.6.7.jar:2.6.7]
    at com.dm.serviceconsumer.ServiceConsumerApplication.main(ServiceConsumerApplication.java:10) [classes/:na]

2022-05-06 15:50:57.504  INFO 21028 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2022-05-06 15:50:57.520  INFO 21028 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-05-06 15:50:57.549 ERROR 21028 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.faceController': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'user.age' in value "${user.age}"
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:405) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$1(AbstractBeanFactory.java:374) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:376) ~[spring-cloud-context-3.1.1.jar:3.1.1]
    at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:179) ~[spring-cloud-context-3.1.1.jar:3.1.1]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:371) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.cloud.context.scope.refresh.RefreshScope.eagerlyInitialize(RefreshScope.java:125) ~[spring-cloud-context-3.1.1.jar:3.1.1]
    at org.springframework.cloud.context.scope.refresh.RefreshScope.start(RefreshScope.java:117) ~[spring-cloud-context-3.1.1.jar:3.1.1]
    at org.springframework.cloud.context.scope.refresh.RefreshScope.onApplicationEvent(RefreshScope.java:112) ~[spring-cloud-context-3.1.1.jar:3.1.1]
    at org.springframework.cloud.context.scope.refresh.RefreshScope.onApplicationEvent(RefreshScope.java:67) ~[spring-cloud-context-3.1.1.jar:3.1.1]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:421) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:378) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:938) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) [spring-boot-2.6.7.jar:2.6.7]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) [spring-boot-2.6.7.jar:2.6.7]
    at com.dm.serviceconsumer.ServiceConsumerApplication.main(ServiceConsumerApplication.java:10) [classes/:na]
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'user.age' in value "${user.age}"
    at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:180) ~[spring-core-5.3.15.jar:5.3.15]
    at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126) ~[spring-core-5.3.15.jar:5.3.15]
    at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:239) ~[spring-core-5.3.15.jar:5.3.15]
    at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:210) ~[spring-core-5.3.15.jar:5.3.15]
    at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:175) ~[spring-context-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:936) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1330) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.15.jar:5.3.15]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.15.jar:5.3.15]
    ... 27 common frames omitted

2022-05-06 15:50:57.551  WARN 21028 --- [       Thread-6] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Start destroying common HttpClient
2022-05-06 15:50:57.551  WARN 21028 --- [      Thread-17] c.a.nacos.common.notify.NotifyCenter     : [NotifyCenter] Start destroying Publisher
2022-05-06 15:50:57.551  WARN 21028 --- [      Thread-17] c.a.nacos.common.notify.NotifyCenter     : [NotifyCenter] Destruction of the end
2022-05-06 15:50:57.551  WARN 21028 --- [       Thread-6] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Destruction of the end
Disconnected from the target VM, address: '127.0.0.1:54163', transport: 'socket'

Process finished with exit code 1

总结

以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。

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