注册中心是微服务体系的核心组件之一，负责服务的自动注册与发现，下面详细介绍下Eureka服务端搭建步骤

新建maven项目，pom文件如下

<groupId>com.gitee.xushiling</groupId>
    <artifactId>spring-cloud-eureka</artifactId>
    <version>1.0-SNAPSHOT</version>
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.RELEASE</version>
        <relativePath/>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.SR1</spring-cloud.version>
    </properties>
    <dependencies>
        <!-- eureka服务端 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

新建 Application.java 启动文件

/**
 * @author ：xushiling
 * @date ：2020/11/26 14:34
 */
@EnableEurekaServer #启用Eureka服务端功能
@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

新建application.yml配置文件

spring:
  application:
    name: spring-cloud-eureka
server:
  port: 3000
eureka:
  instance:
    hostname: spring-cloud-eureka
    appname: eureka注册中心
  client:
    registerWithEureka: false
    fetchRegistry: false
    serviceUrl:
      defaultZone: http://localhost:3000/eureka
  server:
    enableSelfPreservation: false
    evictionIntervalTimerInMs: 4000

启动此工程，打开http://localhost:3000/ 即可看到eureka控制台

image.png