title: @RefreshScope and /refresh not working
body: <p>I have tried to implement spring external configurations using Config Server. It is working fine for the very first time when the application is started but any changes to the properties file are not being reflected. I tried to use /refresh endpoint to refresh my properties on the fly but it doesn't seem to be working. Any help on this would be greatly helpful.</p>
  
  <p>I tried POSTing to localhost:8080/refresh but getting a 404 Error response.</p>
  
  <p>Below is the code of my application class</p>
  
  <pre><code>   @SpringBootApplication
  public class Config1Application {
  
      public static void main(String[] args) {
          SpringApplication.run(Config1Application.class, args);
      }
  }
  
  @RestController
  @RefreshScope
  class MessageRestController {
  
      @Value("${message:Hello default}")
      private String message;
  
      @RequestMapping("/message")
      String getMessage() {
          return this.message;
      }
  }
  </code></pre>
  
  <p>and POM file is </p>
  
  <pre><code>&lt;parent&gt;
          &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-starter-parent&lt;/artifactId&gt;
          &lt;version&gt;2.0.0.RELEASE&lt;/version&gt;
          &lt;relativePath/&gt; &lt;!-- lookup parent from repository --&gt;
      &lt;/parent&gt;
  
      &lt;properties&gt;
          &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.sourceEncoding&gt;
          &lt;project.reporting.outputEncoding&gt;UTF-8&lt;/project.reporting.outputEncoding&gt;
          &lt;java.version&gt;1.8&lt;/java.version&gt;
          &lt;spring-cloud.version&gt;Finchley.M8&lt;/spring-cloud.version&gt;
      &lt;/properties&gt;
  
      &lt;dependencies&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.cloud&lt;/groupId&gt;
              &lt;artifactId&gt;spring-cloud-starter-config&lt;/artifactId&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-starter-actuator&lt;/artifactId&gt;
              &lt;scope&gt;compile&lt;/scope&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-starter-test&lt;/artifactId&gt;
              &lt;scope&gt;test&lt;/scope&gt;
          &lt;/dependency&gt;
      &lt;/dependencies&gt;
  
      &lt;dependencyManagement&gt;
          &lt;dependencies&gt;
              &lt;dependency&gt;
                  &lt;groupId&gt;org.springframework.cloud&lt;/groupId&gt;
                  &lt;artifactId&gt;spring-cloud-dependencies&lt;/artifactId&gt;
                  &lt;version&gt;${spring-cloud.version}&lt;/version&gt;
                  &lt;type&gt;pom&lt;/type&gt;
                  &lt;scope&gt;import&lt;/scope&gt;
              &lt;/dependency&gt;
          &lt;/dependencies&gt;
      &lt;/dependencyManagement&gt;
  
      &lt;build&gt;
          &lt;plugins&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
                  &lt;artifactId&gt;spring-boot-maven-plugin&lt;/artifactId&gt;
              &lt;/plugin&gt;
          &lt;/plugins&gt;
      &lt;/build&gt;
  
      &lt;repositories&gt;
          &lt;repository&gt;
              &lt;id&gt;spring-milestones&lt;/id&gt;
              &lt;name&gt;Spring Milestones&lt;/name&gt;
              &lt;url&gt;https://repo.spring.io/milestone&lt;/url&gt;
              &lt;snapshots&gt;
                  &lt;enabled&gt;false&lt;/enabled&gt;
              &lt;/snapshots&gt;
          &lt;/repository&gt;
      &lt;/repositories&gt;
  </code></pre>
  
  <p>and bootstrap.properties</p>
  
  <pre><code>spring.application.name=xxx
  spring.cloud.config.uri=https://xxxxxx.com
  management.security.enabled=false
  endpoints.actuator.enabled=true
  </code></pre>