1.首先創建一個maven項目

　　這個maven項目會包含springcloud相關的項目，目錄結構如下圖：

2.創建一個服務,也稱為註冊中心:eureka-service

　　1.在該maven項目下新建一個module，eureka-service。即創建一個springboot項目，並添加相關依賴。步驟如下圖：

　　2.application.yml配置文件

server:
 port: 8761
spring:
 application:
  name: eureka-server
 security:
  user:
   name: admin
   password: 123
eureka:
 instance:
  hostname: localhost
 server:
  enableSelfPreservation: false
  eviction-interval-timer-in-ms: 1000
 client:
  register-with-eureka: false
  fetch-registry: false
  service-url:
   defaultZone: http://${spring.security.user.name}:${spring.security.user.password}@${eureka.instance.hostname}:${server.port}/eureka/

　　3.pom.xml

<dependencies>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
</dependencies>

　　4.在springboot啟動類加上註解@EnableEurekaServer

package com.forezp;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;

@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(EurekaServerApplication.class, args);
    }
}

　　5.啟動項目。訪問localhost:8761

SpringCloud demo---eureka-server/eureka-client