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  • spring-cloud eureka注册发现

     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

    欢迎扫码交流:



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  • 原文地址:https://www.cnblogs.com/gexiaoshan/p/10270542.html
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