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

Question

我很难配置我的Spring Boot应用程序以通过Spring-Cloud-Connectors 连接到 Config-Server提供的PWS（Pivotal Web服务）。

在manifest.yml中，配置服务器绑定到应用程序，该对应的VCAP_SERVICES条目正确反映：

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"
    }, ...
}

应用程序使用spring-boot-starter-parent 1.5.2.RELEASE，spring-cloud-dependencies Camden.SR5和spring-cloud-services-dependencies 1.4.1.RELEASE构建。此外，我使用spring-cloud-starter-config和spring-boot-starter-cloud-connectors作为显式依赖项。

<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>
       ...

当我卷曲配置服务器时，我可以看到可用于应用程序名称（我的应用程序）的应用程序版本以及活动的“云”＆＃39;轮廓。

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"}}]}

但是应用程序仍然在启动时失败，抱怨缺少属性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}"

我在这里缺少什么？我认为云连接器都是通过自动配置即插即用的！？

欢迎任何帮助！

Answer 1

要使用PWS上提供的Spring Cloud Services配置服务器，您需要使用一组不同的客户端库，如PWS docs所示。

仅使用以下依赖项替换spring-boot-starter-cloud-connectors和spring-cloud-starter-config上的依赖项：

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

Spring Cloud Services配置服务器在开源Spring Cloud Config服务器之上添加了额外的基于OAuth2的安全性。此客户端库自动执行OAuth协商。