idea新建一个eureka server服务
application.yml 配置:
spring:
application:
name: eureka-server server:
port: 7000 eureka:
instance:
hostname: localhost
server:
response-cache-update-interval-ms: 3000
enable-self-preservation: false #设为false,关闭自我保护主要
eviction-interval-timer-in-ms: 3000 #清理间隔(单位毫秒,默认是60*1000)
client:
#表示是否将自己注册到Eureka Server
register-with-eureka: false
fetch-registry: false
serviceUrl:
defaultZone: http://localhost:${server.port}/eureka/
通过@EnableEurekaServer 开启
package com.example.eureka; import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; @SpringBootApplication
@EnableEurekaServer
public class EurekaApplication { public static void main(String[] args) {
SpringApplication.run(EurekaApplication.class, args);
} }
启动服务,访问 localhost:7000,可以看到eureka界面如下,这时候没有服务注册在eureka:
新建一个eureka-discovery服务,注册在eureka server中
pom.xml中主要需要引入:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency> application.yml中配置如下:
server:
port: 7001 spring:
application:
name: eureka-discovery eureka:
client:
serviceUrl:
defaultZone: http://localhost:7000/eureka/
instance:
lease-expiration-duration-in-seconds: 2
#服务刷新时间配置,每隔这个时间会主动心跳一次
#默认30s
lease-renewal-interval-in-seconds: 1
#将ip注册到eureka server上而不是机器主机名
prefer-ip-address: true
#ip-address: 127.0.0.1
#InstanceId默认是${spring.cloud.client.hostname}:${spring.application.name}:${spring.application.instance_id:${server.port}},
#也就是:主机名:应用名:应用端口
#通过instance-id 自定义ip+端口号
instance-id: ${spring.cloud.client.ipaddress}:${server.port}
启动类EurekaDiscoveryApplication中配置@EnableEurekaClient
package com.example.eurekadiscovery; import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient; @SpringBootApplication
@EnableEurekaClient
public class EurekaDiscoveryApplication { public static void main(String[] args) {
SpringApplication.run(EurekaDiscoveryApplication.class, args);
} }
启动eureka-discovery服务
再访问http://localhost:7000/,可以发现eureka-discovery已经注册在eureka server:
gitHub地址:https://github.com/gexiaoshan518/spring-cloud.git
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