Eureka 服务的注册和发现

一、新建一个 maven module 子项目 microservicecloud-eureka-server

二、pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.atguigu.springcloud</groupId>
        <artifactId>microservicecloud</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <artifactId>microservicecloud-config-eureka-client-7001</artifactId>

    <dependencies>
        <!-- SpringCloudConfig配置 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
        <!-- 热部署插件 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>
</project>

三、application.yml

server:
  port: 7001
  
eureka:
  instance:
    hostname: localhost   #eureka 服务端实例名称
  client:
    register-with-eureka: false   #false 表示不向注册中心中注册自己
    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
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/   #设置与 Eureka Server 交互的地址查询服务和注册服务都需要依赖这个地址(服务暴露的地址)

四、主程序

package com.springcloud;

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

@SpringBootApplication
@EnableEurekaServer
public class EurekaServer7001_application 
{
    public static void main(String[] args) {
        SpringApplication.run(EurekaServer7001_application.class, args);
    }
}

五、运行结果