spring cloud:config-eureka-refresh

config-server-eureka project

1. File-->new spring project

2.add dependency

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>
                spring-cloud-starter-netflix-eureka-client
            </artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>

3.Edit application.yml

server:
  port: 8000
#spring cloud config native
spring:
  profiles:
    active: native
  application:
    name: config-server-eureka
  cloud:
    config:
      server:
        native:
          search-locations: /home/smile/workspace-sts/config-repo
#spring cloud config git
#spring:
#  application:
#    name: config-server-eureka
#  cloud:
#    config:
#      server:
#        git:
#          uri: http://localhost:3380/root/smile.git
#          search-paths: config-repo
#          username: root
#          password: root123456


eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka/

4.program

package com.smile;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@SpringBootApplication
@EnableEurekaClient
@EnableConfigServer
public class ConfigServerEurekaApplication {

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

}

5.Run

visit : http://localhost:8000/smile/config-dev

config-client-eureka

1. File-->new spring project

2.add dependency

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

spring-boot-starter-actuator refresh 需要用到

3.Edit application.yml

bootstrap.yml

server:
  port: 8003

spring:
  application:
    name: config-client-eureka
  cloud:
    config:
#      uri: http://localhost:8000/
      discovery:
        enabled: true
        service-id: config-server-eureka
      name: smile
      profile: config-dev
      # dev 开发环境配置文件 |  test 测试环境  |  pro 正式环境   smile-config-dev.properties {name}-{profile}.properties
      
eureka:
  client:
#    registerWithEureka: false
#    fetchRegistry: false
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/
      

application.yml

management: 
#  server:
#    port: 8003
  endpoint:
    refresh:
      enabled: true
  endpoints:
    web:
      exposure:
        include:
        - info
        - health
        - refresh

4.program

ConfigClientEurekaApplication

package com.smile;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@SpringBootApplication
@EnableEurekaClient
@RefreshScope
public class ConfigClientEurekaApplication {

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

}

ConfigClientController

package com.smile.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RefreshScope
public class ConfigClientController {
    
    @Value("${name}")
    String name;
    @Value("${age}")
    String age;
    
    @RequestMapping("/hello")
    public String hello() {
        return "name:"+name+",age:"+age;
    }
}

5.Run

visit:  http://localhost:8003/hello/

refresh:

update smile-config-dev.properties  age=25--->age=15   save

 

post  http://localhost:8003/actuator/refresh with firefox browser

 

visit:  http://localhost:8003/hello/   age is changed