Client Side Usage

在应用中使用这些特性，仅仅需要构建成依赖spring-cloud-config-client的Spring Boot应用（参看config-client的测试用例，或者代码示例），通过 Spring Boot starter org.springframework.cloud:spring-cloud-starter-config添加依赖是最简单的方式，Maven的示例如下

pom.xml

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.5.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Brixton.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

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

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

<!-- repositories also needed for snapshots and milestones -->

你可以创建一个标准的Spring Boot应用，如下

@SpringBootApplication
@RestController
public class Application {

    @RequestMapping("/")
    public String home() {
        return "Hello World!";
    }

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

当客户端应用运行后，它会从默认的本地配置服务获取外部配置。你可以使用bootstrap.properties修改 config server的方式修改应用的启动行为。例：

spring.cloud.config.uri: http://myconfigserver.com

bootstrap属性将会作为高可用属性资源显示在\/env 端

$ curl localhost:8080/env
{
  "profiles":[],
  "configService:https://github.com/spring-cloud-samples/config-repo/bar.properties":{"foo":"bar"},
  "servletContextInitParams":{},
  "systemProperties":{...},
  ...
}

"configService:<URL of remote repository>\/<file name>" 的属性资源包含了属性"foo"，value为"bar" ，并且为最高的优先级。

注意

属性资源的URL是git仓库，而不是配置服务的URL