springCloud-eureka注册中心

基础步骤

1、添加引用

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

2、添加启动注解

@SpringBootApplication
@EnableEurekaServer
public class SpringCloudEurekaApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringCloudEurekaApplication.class, args);
    }
}

3、配置文件

spring:
  application:
    name: eureka-server
# 单节点
server:
  port: 8761
eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka/
    register-with-eureka: false
    fetch-registry: false

多节点

和单节点差不多，只是配置文件稍微修改一下而已

双节点

spring:
  application:
    name: eureka-server
---
# 启动参数 --spring.profiles.active=server1
spring:
  profiles: server1
server:
  port: 8761
eureka:
  client:
    service-url:
      defaultZone: http://localhost:8762/eureka/
---
# 启动参数 --spring.profiles.active=server2
spring:
  profiles: server2
server:
  port: 8762
eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka/

三节点

---
spring:
  application:
    name: spring-cloud-eureka
  profiles: peer1
server:
  port: 8000
eureka:
  instance:
    hostname: peer1
  client:
    serviceUrl:
      defaultZone: http://peer2:8001/eureka/,http://peer3:8002/eureka/
---
spring:
  application:
    name: spring-cloud-eureka
  profiles: peer2
server:
  port: 8001
eureka:
  instance:
    hostname: peer2
  client:
    serviceUrl:
      defaultZone: http://peer1:8000/eureka/,http://peer3:8002/eureka/
---
spring:
  application:
    name: spring-cloud-eureka
  profiles: peer3
server:
  port: 8002
eureka:
  instance:
    hostname: peer3
  client:
    serviceUrl:
      defaultZone: http://peer1:8000/eureka/,http://peer2:8001/eureka/