Spring Cloud Config-Client 无法获取 Config-Server 在 github 上的配置文件的属性值,竟然是因为!!!
程序员文章站
2022-03-16 18:28:10
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Spring Cloud Config-Server 配置中心 配置文件放在github,配置文件均为bootstrap.yml(bootstrap.yml的优先级级比application.yml高,所以会先去github配置中心获取信息)
运行 Spring Cloud Config-Client 应用程序时,报错信息如下:
java.lang.IllegalArgumentException: Could not resolve placeholder 'from' in value "${from}"
at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:172) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:124) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:237) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:211) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:175) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:839) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1086) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:373) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
... 17 common frames omitted
!!!原因!!!
github上的配置文件的名字构成必须是: {application}-{profile}.properties
仓库中的配置文件会被转换成web接口,访问可以参照以下的规则: /{application}/{profile}[/{label}]: ~: /{application}-{profile}.yml ~: /{label}/{application}-{profile}.yml ~: /{application}-{profile}.properties ~: /{label}/{application}-{profile}.properties
比如:config-client的配置文件信息如下:
eureka:
client:
serviceUrl:
defaultZone: http://peer1:1122/eureka/
spring:
application:
name: config-client
cloud:
config:
uri: http://localhost:9200/
label: master
profile: dev
server:
port: 9300
那么在github中的配置文件名必须是:config-client-dev.properties;否则程序启动不起来。
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