服务中心【单机版】
pom文件:

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

启动类:

@SpringBootApplication
@EnableEurekaServer     //启用 eureka server 相关默认配置
public class EurekaServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(EurekaServerApplication.class, args);
    }
}

配置文件:

server:
  port: 8080
spring:
  application:
    name: eureka-server
eureka:
  instance:
    hostname: localhost
  client:
    service-url:
      defaultZone:  http://${eureka.instance.hostname}:${server.port}/eureka/
    register-with-eureka: false             #仅作为服务中心,不作为服务客户端
    fetch-registry: false                   #不从服务中心检索注册的服务
  server:
    eviction-interval-timer-in-ms: 5000     # 清理间隔(ms)
    enable-self-preservation: true          # 自我保护
    renewal-percent-threshold: 0.1          # 默认0.85, 在运行期间会去统计心跳失败比例在 15 分钟之内是否低于 85%

启动服务,访问 服务中心,地址:http://localhost:8080

单机版服务中心【Eureka Server】

单机版结束!

但是,单点服务哪里够用啊,必须集群化,才稳定
来干吧,兄弟!!!

服务中心【集群版】

三个工程,idea工具只需要生成三分配置文件即可;

application-server1.yml

server:
  port: 8081
spring:
  application:
    name: eureka-server
eureka:
  instance:
    hostname: localhost
  client:
    service-url:
      defaultZone:  http://${eureka.instance.hostname}:8081/eureka/,http://${eureka.instance.hostname}:8082/eureka/,http://${eureka.instance.hostname}:8083/eureka/
    register-with-eureka: false             #仅作为服务中心,不作为服务客户端
    fetch-registry: false                   #不从服务中心检索注册的服务
  server:
    eviction-interval-timer-in-ms: 5000     # 清理间隔(ms)
    enable-self-preservation: true          # 自我保护
    renewal-percent-threshold: 0.49          # 心跳失败比例

application-server2.yml
application-server3.yml
记得改端口,兄弟!!!

配置三套服务:

然后依次启动

成功启动后,访问http://localhost:8081/,http://localhost:8082/,http://localhost:8083/