使用Spring-Cloud-Connectors配置Spring Boot以使用PWS Config-Server

Question

我很難將Spring Boot應用程序配置爲通過Spring-Cloud連接到提供的PWS（Pivotal Web Services）Config-Server - 連接器。

在manifest.yml的配置服務器被綁定到應用程序，它被正確地由相應的，VCAP_SERVICES條目反射：

applications: 
- name: edge-service-webapp-myapp 
    services: 
    - infrastructure-config-server 
    memory: 512M 
    env: 
    TRUST_CERTS: api.run.pivotal.io 
    SPRING_PROFILES_DEFAULT: cloud 
    instances: 1 
    host: edge-service-webapp-myapp 
    domain: cfapps.io 
    buildpack: java_buildpack 

{ 
"VCAP_SERVICES": { 
    "p-config-server": [ 
    { 
    "credentials": { 
    "access_token_uri": "https://p-spring-cloud-services.uaa.run.pivotal.io/oauth/token", 
    "client_id": "p-config-server-84d66ea6-ebc6-xxx", 
    "client_secret": "***", 
    "uri": "https://config-b4320676-xxx.cfapps.io" 
    }, ... 
} 

該應用程序是建立與彈簧引導起動父1.5。 2.RELEASE，spring-cloud-dependencies Camden.SR5和spring-cloud-services-dependencies 1.4.1.RELEASE。此外，我使用spring-cloud-starter-config和spring-boot-starter-cloud-connectors作爲顯式依賴項。

<dependencyManagement> 
     <dependencies> 
      <dependency> 
       <groupId>io.pivotal.spring.cloud</groupId> 
       <artifactId>spring-cloud-services-dependencies</artifactId> 
       <version>1.4.1.RELEASE</version> 
       <type>pom</type> 
       <scope>import</scope> 
      </dependency> 
      <dependency> 
       <groupId>org.springframework.cloud</groupId> 
       <artifactId>spring-cloud-dependencies</artifactId> 
       <version>Camden.SR5</version> 
       <type>pom</type> 
       <scope>import</scope> 
      </dependency> 
      .... 
     </dependencies> 
    </dependencyManagement> 

<dependencies> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-cloud-connectors</artifactId> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.cloud</groupId> 
      <artifactId>spring-cloud-starter-config</artifactId> 
     </dependency> 
     ... 

當我蜷縮在配置服務器，我可以看到可用的應用程序名稱（MY-APP）和主動「雲」配置文件中的應用程序版本。

spring: 
    application: 
    name: my-app 
    cloud: 
    config: 
     enabled: true 


curl -H "Authorization: Bearer XXX" https://config-b4320676-xxx.cfapps.io/tradefoundry/cloud 
{"name":"my-app","profiles":["cloud"],"label":"master","version":"389e4f909ff1303332167b2159b4d75201109d69","state":null,"propertySources":[{"name":"https://gitlab.com/myapp/configuration.git/myapp-cloud.properties","source":{"spring.thymeleaf.cache":"true","message":"Hello Cloud!"}},{"name":"https://gitlab.com/myapp/configuration.git/myapp.properties","source":{"server.compression.enabled":"true","spring.thymeleaf.cache":"true","application.version":"0.0.1"}},{"name":"https://gitlab.com/myapp/configuration.git/application.properties","source":{"server.compression.enabled":"true","spring.thymeleaf.cache":"true","application.cache.busting.enabled":"false","application.version":"0.0.1-20170202195700","server.compression.mime-types":"application/json,application/xml,text/html,text/xml,text/plain,text/css,application/javascript"}}]} 

但仍是應用程序失敗在啓動時，抱怨缺少財產application.version。

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myWebappApplication': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'application.version' in value "${application.version}" 

我在這裏錯過了什麼？我認爲雲連接器都是通過自動配置即插即用的！

歡迎任何幫助！

Answer 1

要使用PWS上提供的Spring Cloud Services配置服務器，您需要使用PWS docs中顯示的一組不同的客戶端庫。

上spring-boot-starter-cloud-connectors和spring-cloud-starter-config與僅這一項依賴更換依賴性：

<dependency> 
    <groupId>io.pivotal.spring.cloud</groupId> 
    <artifactId>spring-cloud-services-starter-config-client</artifactId> 
</dependency> 

春季雲服務配置服務器上的開源春雲配置服務器的頂部增加了額外的基於OAuth2用戶的安全性。該客戶端庫自動執行OAuth協商。