4、Eureka服务端安装

1. 新建一个eureka server module

<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>cloud2020</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>cloud-eureka-server7001</artifactId>
    <packaging>jar</packaging>

    <name>cloud-eureka-server7001</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.atguigu.springcloud</groupId>
            <artifactId>cloud-api-commons</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!-- 服务注册中心的服务端 eureka-server -->
        <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-web</artifactId>
        </dependency>

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

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

server:
  port: 7001

# 单机版
eureka:
  instance:
    hostname: localhost  #eureka服务端的实例名字
  client:
    register-with-eureka: false    #表示不向注册中心注册自己
    fetch-registry: false   #表示自己就是注册中心，职责是维护服务实例，并不需要去检索服务
    service-url:
      #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
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

package com.atguigu.springcloud;

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

// 设置为服务注册中心 EurekaServer
@SpringBootApplication
@EnableEurekaServer
public class CloudEurekaServer7001Application
{
    public static void main( String[] args )
    {
        SpringApplication.run(CloudEurekaServer7001Application.class, args);
        System.out.println( "EurekaServer启动成功" );
    }
}

注意：只是对外提供服务注册与发现，不涉及任何的业务逻辑，因此此module是没有业务逻辑代码的

1.1 启动服务

2. payment服务注册入eureka中