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

Question

我很難配置Spring Boot應用程序以通過Spring-Cloud-Connectors連接到PWS（關鍵Web服務）提供的Config-Server 。

在manifest.yml中，配置服務器已綁定到應用程序，相應的VCAP_SERVICES條目正確反映了該服務器：

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"
    }, ...
}

該應用程序使用spring-boot-starter-parent 1.5.2.RELEASE，spring-cloud-dependencies Camden.SR5和spring-cloud-services-dependencies 1.4.1.RELEASE構建。 我也使用spring-cloud-starter-config和spring-boot-starter-cloud-connectors作為顯式依賴項。

<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>
       ...

當我卷曲配置服務器時，我可以看到可用於應用程序名稱（my-app）和活動“雲”配置文件的應用程序版本。

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"}}]}

但是仍然該應用程序在啟動時失敗，抱怨缺少屬性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}"

我在這里想念什么？ 我以為雲連接器都可以通過自動配置實現即插即用！？

歡迎任何幫助！

Answer 1

要使用PWS上提供的Spring Cloud Services配置服務器，您需要使用一組不同的客戶端庫，如PWS docs中所示。

僅用以下一種依賴關系替換spring-boot-starter-cloud-connectors和spring-cloud-starter-config依賴關系：

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

Spring Cloud Services配置服務器在開源Spring Cloud Config服務器之上添加了其他基於OAuth2的安全性。 該客戶端庫會自動進行OAuth協商。