单节点搭建

1,pom依赖

org.springframework.cloud spring-cloud-starter-netflix-eureka-server 2,SpringBoot启动类

package com.wwl.eureka_server;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class EurekaServerApplication {
    
    public static void main(String[] args) {
    
        SpringApplication.run(EurekaServerApplication.class, args);
    }
}

3,yaml配置文件,application.yaml

spring:
  application:
    name: eureka-server
server:
  port: 7901
# eureka配置
eureka:
  client:
    fetch-registry: false
    register-with-eureka: false
    service-url:
      defaultZone: http://eureka1:7901/eureka
  instance:
    hostname: eureka1

集群搭建

1,依赖

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

2,启动类开启Eureka

package com.wwl.eureka_server;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@SpringBootApplication
@EnableEurekaServer // 开启Eureka
public class EurekaServerApplication {
    

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

}

3,Eureka注册中心配置(Eureka集群模式)

spring:
  application:
    name: eureka-server
---
spring:
  profiles: eureka1
server:
  port: 7901
eureka:
  client:
    service-url:
      defaultZone: http://eureka1:7901/eureka,http://eureka2:7902/eureka,http://eureka3:7903/eureka
  instance:
    hostname: eureka1
---
spring:
  profiles: eureka2
server:
  port: 7902
eureka:
  client:
    service-url:
      defaultZone: http://eureka2:7902/eureka,http://eureka1:7901/eureka,http://eureka3:7903/eureka
  instance:
    hostname: eureka2
---
spring:
  profiles: eureka3
server:
  port: 7903
eureka:
  client:
    service-url:
      defaultZone: http://eureka3:7903/eureka,http://eureka1:7901/eureka,http://eureka2:7902/eureka
  instance:
    hostname: eureka3

注意问题:
Eureka集群模式在本地玩的时候,每个节点要配置hostname,并配置本地host文件