场景：
我刚接触Java Spring Boot。我试图在云配置服务器上集中配置。配置也托管在github上。我的配置服务器设置没有问题。当我尝试在客户端应用程序中检索配置值时，遇到了问题。
以下是我设置配置服务器的方式：
application.yml（配置服务器）：
balibi当我从http://localhost:8888/client_side/default回来时，响应是：
---
spring:
application:
name: client_side
cloud:
config:
server:
git:
uri: git@github.com:<user>/Sample-Spring-Boot-Remote-Config.git
skip-ssl-validation: true
privateKey: |
-----BEGIN RSA PRIVATE KEY-----
-----END RSA PRIVATE KEY-----
---
server:
port: 8888
我在client_side.properties中定义了app.mark = remote。因此，我认为如果得到此响应，则意味着我的配置服务器正在正确运行。
然后我有我的客户端应用程序bootstrap.yml：
{
"name": "client_side",
"profiles":[
"default"
],
"label": null,
"version": "********************",
"state": null,
"propertySources":[
{
"name": "git@github.com:<user>/Sample-Spring-Boot-Remote-Config.git/client_side.properties",
"source":{
"app.mark": "remote"
}
}
]
}
application.yml：
spring:
application:
name: client_side
profiles:
active: default
cloud:
config:
uri: http://localhost:8888
enabled: true
还有我的ClientApplication.java：
server:
port: 8910
当我尝试启动客户端时，出现错误堆栈跟踪：
package com.example.client;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
@RestController
public class ClientApplication {
@Value("${app.mark}")
private String mark;
@RequestMapping("/mark")
public String getMark() {
return this.mark;
}
public static void main(String[] args) {
SpringApplication.run(ClientApplication.class, args);
}
}
我试图搜索此问题，但是到目前为止，没有任何在线解决方案对我有用。另外，我在pom.xml中的春季版本是：
2019-04-11 11:17:20.849 INFO 15752 --- [ restartedMain] com.example.client.ClientApplication : The following profiles are active: default
2019-04-11 11:17:23.163 INFO 15752 --- [ restartedMain] o.s.cloud.context.scope.GenericScope : BeanFactory id=b1335308-72c0-34fb-a3e1-08fbf32d3e18
2019-04-11 11:17:23.191 INFO 15752 --- [ restartedMain] faultConfiguringBeanFactoryPostProcessor : No bean named 'errorChannel' has been explicitly defined. Therefore, a default PublishSubscribeChannel will be created.
2019-04-11 11:17:23.198 INFO 15752 --- [ restartedMain] faultConfiguringBeanFactoryPostProcessor : No bean named 'taskScheduler' has been explicitly defined. Therefore, a default ThreadPoolTaskScheduler will be created.
2019-04-11 11:17:23.205 INFO 15752 --- [ restartedMain] faultConfiguringBeanFactoryPostProcessor : No bean named 'integrationHeaderChannelRegistry' has been explicitly defined. Therefore, a default DefaultHeaderChannelRegistry will be created.
2019-04-11 11:17:23.441 INFO 15752 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.ws.config.annotation.DelegatingWsConfiguration' of type [org.springframework.ws.config.annotation.DelegatingWsConfiguration$$EnhancerBySpringCGLIB$$41da1e17] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-04-11 11:17:23.477 INFO 15752 --- [ restartedMain] .w.s.a.s.AnnotationActionEndpointMapping : Supporting [WS-Addressing August 2004, WS-Addressing 1.0]
2019-04-11 11:17:23.555 INFO 15752 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$9d425918] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-04-11 11:17:23.583 INFO 15752 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.integration.config.IntegrationManagementConfiguration' of type [org.springframework.integration.config.IntegrationManagementConfiguration$$EnhancerBySpringCGLIB$$8341447] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-04-11 11:17:23.604 INFO 15752 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'integrationDisposableAutoCreatedBeans' of type [org.springframework.integration.config.annotation.Disposables] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-04-11 11:17:23.636 INFO 15752 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.hateoas.config.HateoasConfiguration' of type [org.springframework.hateoas.config.HateoasConfiguration$$EnhancerBySpringCGLIB$$1cc2a64a] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-04-11 11:17:23.650 INFO 15752 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$b95c5c15] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-04-11 11:17:24.934 INFO 15752 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8910 (http)
2019-04-11 11:17:24.965 INFO 15752 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-04-11 11:17:24.965 INFO 15752 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.17]
2019-04-11 11:17:25.236 INFO 15752 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-04-11 11:17:25.237 INFO 15752 --- [ restartedMain] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 4364 ms
2019-04-11 11:17:26.809 WARN 15752 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'clientApplication': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'app.mark' in value "${app.mark}"
2019-04-11 11:17:26.812 INFO 15752 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2019-04-11 11:17:26.890 INFO 15752 --- [ restartedMain] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-04-11 11:17:26.899 ERROR 15752 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'clientApplication': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'app.mark' in value "${app.mark}"
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:380) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:849) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at com.example.client.ClientApplication.main(ClientApplication.java:22) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_202]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_202]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_202]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_202]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.1.4.RELEASE.jar:2.1.4.RELEASE]
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'app.mark' in value "${app.mark}"
at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:172) ~[spring-core-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:124) ~[spring-core-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:237) ~[spring-core-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:211) ~[spring-core-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:175) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:851) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1188) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1167) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
... 22 common frames omitted
我不知道为什么我的客户端无法连接到远程服务器。据我了解，如果我指向正确的端口，正确的应用程序和配置文件版本，则应该可以使用@Value注释获取值。任何帮助，谢谢。