一、服务端

1、POM

  1.     <dependencies>
  2.         <!--eureka-server-->
  3.         <dependency>
  4.             <groupId>org.springframework.cloud</groupId>
  5.             <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
  6.         </dependency>
  7.         <!-- 引入自己定义的api通用包，可以使用Payment支付Entity -->
  8.         <dependency>
  9.             <groupId>com.tfjy.springcloud</groupId>
  10.             <artifactId>cloud-api-commons</artifactId>
  11.             <version>1.0-SNAPSHOT</version>
  12.         </dependency>
  13.         <!--boot web actuator-->
  14.         <dependency>
  15.             <groupId>org.springframework.boot</groupId>
  16.             <artifactId>spring-boot-starter-web</artifactId>
  17.         </dependency>
  18.         <dependency>
  19.             <groupId>org.springframework.boot</groupId>
  20.             <artifactId>spring-boot-starter-actuator</artifactId>
  21.         </dependency>
  22.         <!--一般通用配置-->
  23.         <dependency>
  24.             <groupId>org.springframework.boot</groupId>
  25.             <artifactId>spring-boot-devtools</artifactId>
  26.             <scope>runtime</scope>
  27.             <optional>true</optional>
  28.         </dependency>
  29.         <dependency>
  30.             <groupId>org.projectlombok</groupId>
  31.             <artifactId>lombok</artifactId>
  32.         </dependency>
  33.         <dependency>
  34.             <groupId>org.springframework.boot</groupId>
  35.             <artifactId>spring-boot-starter-test</artifactId>
  36.             <scope>test</scope>
  37.         </dependency>
  38.         <dependency>
  39.             <groupId>junit</groupId>
  40.             <artifactId>junit</artifactId>
  41.         </dependency>
  42.     </dependencies>

2、YML

  1. server:
  2.   port: 7001
  4. eureka:
  5.   instance:
  6.     hostname: eureka7001.com #eureka服务端的实例名称
  7.   client:
  8.     register-with-eureka: false     #false表示不向注册中心注册自己。
  9.     fetch-registry: false     #false表示自己端就是注册中心，我的职责就是维护服务实例，并不需要去检索服务
  10.     service-url:
  11.       #集群指向其它eureka
  12.       #defaultZone: http://eureka7002.com:7002/eureka/
  13.       #单机就是7001自己
  14.       defaultZone: http://localhost:7001/eureka/
  15.     #server:
  16.     #关闭自我保护机制，保证不可用服务被及时踢除
  17.     #enable-self-preservation: false
  18.     #eviction-interval-timer-in-ms: 2000

3、主启动

  1. @SpringBootApplication
  2. @EnableEurekaServer 
  3. public class EurekaMain7001 {
  4.     public static void main(String[] args) {
  5.         SpringApplication.run(EurekaMain7001.class,args);
  6.     }
  7. }

二、客户端

1、POM

  1.         <!--eureka-client-->
  2.         <dependency>
  3.             <groupId>org.springframework.cloud</groupId>
  4.             <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
  5.         </dependency>

2、YML

  2. eureka:
  3.   client:
  4.     #表示是否将自己注册进EurekaServer默认为true。
  5.     register-with-eureka: true
  6.     #是否从EurekaServer抓取已有的注册信息，默认为true。单节点无所谓，集群必须设置为true才能配合ribbon使用负载均衡
  7.     fetchRegistry: true
  8.     service-url:
  9.       #单机版
  10.       defaultZone: http://localhost:7001/eureka
  11.       # 集群版
  12.       #defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka
  13.   instance:
  14.     instance-id: payment8001
  15.     #访问路径可以显示IP地址
  16.     prefer-ip-address: true
  17.     #Eureka客户端向服务端发送心跳的时间间隔，单位为秒(默认是30秒)
  18.     #lease-renewal-interval-in-seconds: 1
  19.     #Eureka服务端在收到最后一次心跳后等待时间上限，单位为秒(默认是90秒)，超时将剔除服务
  20.     #lease-expiration-duration-in-seconds: 2

3、主启动

  1. @EnableEurekaClient

https://juejin.cn/post/6844904001444511758