Spring boot：@Value 找不到值，或启动报异常

C:\Java\jdk8\bin\java.exe -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:61122,suspend=y,server=n -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=61121 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -javaagent:C:\JetBrains\IntelliJIDEA\lib\rt\debugger-agent.jar=file:/C:/Users/UYUN/AppData/Local/Temp/capture.props -Dfile.encoding=UTF-8 -classpath "C:\Java\jdk8\jre\lib\charsets.jar;C:\Java\jdk8\jre\lib\deploy.jar;C:\Java\jdk8\jre\lib\ext\access-bridge-64.jar;C:\Java\jdk8\jre\lib\ext\cldrdata.jar;C:\Java\jdk8\jre\lib\ext\dnsns.jar;C:\Java\jdk8\jre\lib\ext\jaccess.jar;C:\Java\jdk8\jre\lib\ext\jfxrt.jar;C:\Java\jdk8\jre\lib\ext\localedata.jar;C:\Java\jdk8\jre\lib\ext\nashorn.jar;C:\Java\jdk8\jre\lib\ext\sunec.jar;C:\Java\jdk8\jre\lib\ext\sunjce_provider.jar;C:\Java\jdk8\jre\lib\ext\sunmscapi.jar;C:\Java\jdk8\jre\lib\ext\sunpkcs11.jar;C:\Java\jdk8\jre\lib\ext\zipfs.jar;C:\Java\jdk8\jre\lib\javaws.jar;C:\Java\jdk8\jre\lib\jce.jar;C:\Java\jdk8\jre\lib\jfr.jar;C:\Java\jdk8\jre\lib\jfxswt.jar;C:\Java\jdk8\jre\lib\jsse.jar;C:\Java\jdk8\jre\lib\management-agent.jar;C:\Java\jdk8\jre\lib\plugin.jar;C:\Java\jdk8\jre\lib\resources.jar;C:\Java\jdk8\jre\lib\rt.jar;E:\dataTest\SpringBoot\SpringBoot-log4j2\target\classes;D:\Program Files\repository\org\springframework\boot\spring-boot-starter-web\2.1.5.RELEASE\spring-boot-starter-web-2.1.5.RELEASE.jar;D:\Program Files\repository\org\springframework\boot\spring-boot-starter\2.1.5.RELEASE\spring-boot-starter-2.1.5.RELEASE.jar;D:\Program Files\repository\org\springframework\boot\spring-boot\2.1.5.RELEASE\spring-boot-2.1.5.RELEASE.jar;D:\Program Files\repository\org\springframework\boot\spring-boot-autoconfigure\2.1.5.RELEASE\spring-boot-autoconfigure-2.1.5.RELEASE.jar;D:\Program Files\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;D:\Program Files\repository\org\yaml\snakeyaml\1.23\snakeyaml-1.23.jar;D:\Program Files\repository\org\springframework\boot\spring-boot-starter-json\2.1.5.RELEASE\spring-boot-starter-json-2.1.5.RELEASE.jar;D:\Program Files\repository\com\fasterxml\jackson\core\jackson-databind\2.9.8\jackson-databind-2.9.8.jar;D:\Program 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Files\repository\org\xerial\snappy\snappy-java\1.1.7.2\snappy-java-1.1.7.2.jar;D:\Program Files\repository\org\slf4j\slf4j-api\1.7.26\slf4j-api-1.7.26.jar;D:\Program Files\repository\com\alibaba\otter\canal.client\1.1.2\canal.client-1.1.2.jar;D:\Program Files\repository\com\google\protobuf\protobuf-java\3.6.1\protobuf-java-3.6.1.jar;D:\Program Files\repository\io\netty\netty-all\4.1.36.Final\netty-all-4.1.36.Final.jar;D:\Program Files\repository\com\101tec\zkclient\0.10\zkclient-0.10.jar;D:\Program Files\repository\commons-io\commons-io\2.4\commons-io-2.4.jar;D:\Program Files\repository\commons-lang\commons-lang\2.6\commons-lang-2.6.jar;D:\Program Files\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;D:\Program Files\repository\com\google\guava\guava\18.0\guava-18.0.jar;D:\Program Files\repository\org\slf4j\jcl-over-slf4j\1.7.26\jcl-over-slf4j-1.7.26.jar;D:\Program Files\repository\org\springframework\spring-core\5.1.7.RELEASE\spring-core-5.1.7.RELEASE.jar;D:\Program Files\repository\org\springframework\spring-jcl\5.1.7.RELEASE\spring-jcl-5.1.7.RELEASE.jar;D:\Program Files\repository\org\springframework\spring-aop\5.1.7.RELEASE\spring-aop-5.1.7.RELEASE.jar;D:\Program Files\repository\org\springframework\spring-context\5.1.7.RELEASE\spring-context-5.1.7.RELEASE.jar;D:\Program Files\repository\org\springframework\spring-jdbc\5.1.7.RELEASE\spring-jdbc-5.1.7.RELEASE.jar;D:\Program Files\repository\org\springframework\spring-tx\5.1.7.RELEASE\spring-tx-5.1.7.RELEASE.jar;D:\Program Files\repository\org\springframework\spring-orm\5.1.7.RELEASE\spring-orm-5.1.7.RELEASE.jar;D:\Program Files\repository\com\aliyun\openservices\aliware-apache-rocketmq-cloud\1.0\aliware-apache-rocketmq-cloud-1.0.jar;C:\JetBrains\IntelliJIDEA\lib\idea_rt.jar" com.somta.springboot.web.Application
Connected to the target VM, address: '127.0.0.1:61122', transport: 'socket'

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 :: Spring Boot ::        (v2.1.5.RELEASE)

16:35:38.979 [main] INFO  com.somta.springboot.web.Application - Starting Application on DESKTOP-HEJ2IPH with PID 20788 (E:\dataTest\SpringBoot\SpringBoot-log4j2\target\classes started by UYUN in E:\dataTest\SpringBoot\SpringBoot-log4j2)
16:35:38.989 [main] INFO  com.somta.springboot.web.Application - The following profiles are active: dev
16:35:40.248 [main] INFO  org.springframework.boot.web.embedded.tomcat.TomcatWebServer - Tomcat initialized with port(s): 8080 (http)
16:35:40.264 [main] INFO  org.apache.coyote.http11.Http11NioProtocol - Initializing ProtocolHandler ["http-nio-8080"]
16:35:40.272 [main] INFO  org.apache.catalina.core.StandardService - Starting service [Tomcat]
16:35:40.273 [main] INFO  org.apache.catalina.core.StandardEngine - Starting Servlet engine: [Apache Tomcat/9.0.19]
16:35:40.396 [main] INFO  org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/] - Initializing Spring embedded WebApplicationContext
16:35:40.396 [main] INFO  org.springframework.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 1331 ms
16:35:40.483 [main] INFO  org.apache.kafka.clients.producer.ProducerConfig - org.apache.kafka.clients.producer.internals.DefaultPartitioner

16:35:40.559 [main] INFO  org.apache.kafka.common.utils.AppInfoParser - Kafka version: 2.2.1
16:35:40.560 [main] INFO  org.apache.kafka.common.utils.AppInfoParser - Kafka commitId: 55783d3133a5a49a
16:35:40.574 [main] WARN  org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'consumerServer': Unsatisfied dependency expressed through field 'consumer'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'consumerPrototype': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'kafkaHosts' in value "${kafkaHosts}"
16:35:40.580 [main] INFO  org.apache.catalina.core.StandardService - Stopping service [Tomcat]
16:35:40.593 [main] INFO  org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener - 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
16:35:40.604 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'consumerServer': Unsatisfied dependency expressed through field 'consumer'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'consumerPrototype': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'kafkaHosts' in value "${kafkaHosts}"
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:843) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.5.RELEASE.jar:2.1.5.RELEASE]
	at com.somta.springboot.web.Application.main(Application.java:11) [classes/:?]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'consumerPrototype': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'kafkaHosts' in value "${kafkaHosts}"
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:380) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:338) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1248) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1168) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	... 19 more
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'kafkaHosts' in value "${kafkaHosts}"
	at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:178) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:124) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:237) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:211) ~[spring-core-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:175) ~[spring-context-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:851) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1189) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1168) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstraDisconnected from the target VM, address: '127.0.0.1:61122', transport: 'socket'
ctAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:338) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1248) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1168) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593) ~[spring-beans-5.1.7.RELEASE.jar:5.1.7.RELEASE]
	... 19 more

Process finished with exit code 1