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.
I tried POSTing to localhost:8080/refresh but getting a 404 Error response.
Below is the code of my application class
@SpringBootApplication
public class Config1Application {
public static void main(String[] args) {
SpringApplication.run(Config1Application.class, args);
}
}
@RestController
@RefreshScope
class MessageRestController {
@Value("${message:Hello default}")
private String message;
@RequestMapping("/message")
String getMessage() {
return this.message;
}
}
and POM file is
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Finchley.M8</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
and bootstrap.properties
spring.application.name=xxx
spring.cloud.config.uri=https://xxxxxx.com
management.security.enabled=false
endpoints.actuator.enabled=true
You can invoke the refresh Actuator endpoint by sending an empty HTTP POST to the client's refresh endpoint: http://localhost:8080/actuator/refresh . Then you can confirm it worked by visting the http://localhost:8080/message endpoint. We set management.
Now, you need to add the @RefreshScope annotation to your main Spring Boot application. The @RefreshScope annotation is used to load the configuration properties value from the Config server. package com. example. configclient; import org.
For Reloading properties, spring cloud has introduced @RefreshScope annotation which can be used for refreshing beans. Spring Actuator provides different endpoints for health, metrics. but spring cloud will add extra end point /refresh to reload all the properties.
Refreshing Properties By calling the /actuator/refresh endpoint exposed on the config client via the Spring Actuator. By calling the /actuator/bus-refresh endpoint exposed on the config client integrated with Spring Cloud Bus.
The endpoint is now /actuator/refresh
for Spring 2 and greater
From the comments:
management.endpoints.web.exposure.include=refresh
set in the bootstrap.properties/bootstrap.yml
Note: If you're new to Spring-Cloud
and not quite sure of what all keywords can go in web.exposure
you can set it to *
(management.endpoints.web.exposure.include=*
) to have all exposed and you can get to know the endpoints and their restrictions later.
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