Getting unexpected error (type=Method Not Allowed, status=405) error while access /refresh actuator is not working

Question

I created one @RestController class and trying to use /refresh actuator values from config server. /refresh actuatoris not working. I am getting below error. Spring boot version is 2.0.0-Release. I can not upgrade spring boot version.

http://localhost:8888/secondservice/admin/refresh

    Whitelabel Error Page
    This application has no explicit mapping for /error, so you are seeing this as a fallback.

    Thu Jan 23 10:16:10 EST 2020
    ***There was an unexpected error (type=Method Not Allowed, status=405).
    Request method 'GET' not supported***

Dependency:-

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <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>

     <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>

Foo.Class

    @RefreshScope
    @RestController
    public class Foo {


        @Value("${welcome.message}")
        private String personName;

        @RequestMapping(value ="/", produces = "application/json", method = RequestMethod.POST)
        public String greet(){
            return "hello " + "POST "+ personName;
        }

    }

bootstrap.yml

    server:
      port: 8888 
    spring:
      application:
        name: secondservice  
      cloud:
        config:
          uri: http://localhost:8890/configserverdemo
          fail-fast: false
          enabled: true
          server:
            bootstrap: true
    management:
      context-path: /admin
      security:
        enabled: false
      endpoints:
        web:
          exposure:
            include: "*"
      endpoint:
        refresh:
          enabled: true

Answer 1

There was an unexpected error (type=Method Not Allowed, status=405). Request method 'GET' not supported

The above error means that HTTP GET is not supported on that particular endpoint.

To refresh the config from spring config server you need to make an HTTP POST request on http://localhost:8888/secondservice/admin/refresh

Below is from the Spring guide

You can invoke the refresh Actuator endpoint by sending an empty HTTP POST to the client’s refresh endpoint

To make the HTTP POST request, you can use any HTTP client, eg Postman or cURL. To use cURL, you can run the below command on a terminal

curl -X POST http://localhost:8888/secondservice/admin/refresh