SpringCloud系列（9）--将服务消费者Consumer注册进Eureka Server

前言：上一章节我们介绍了如何将服务提供者注册进Eureka服务里，本章节则介绍如何将服务消费者Consumer注册进Eureka服务里

Eureka架构原理图

1、修改consumer-order80子模块的pom.xml文件，引入Eureka Clinet的依赖，然后reolad一下，下载依赖

例：

"1.0" encoding="UTF-8"?>
<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">
    <parent>
        <artifactId>springcloud01artifactId>
        <groupId>com.ken.springcloudgroupId>
        <version>1.0-SNAPSHOTversion>
    parent>
    <modelVersion>4.0.0modelVersion>
 
    <artifactId>consumer-order80artifactId>
 
    <dependencies>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-actuatorartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-devtoolsartifactId>
            <scope>runtimescope>
            <optional>trueoptional>
        dependency>
        
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <optional>trueoptional>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
        
        <dependency>
            <groupId>com.ken.springcloudgroupId>
            <artifactId>api-commonsartifactId>
            <version>${project.version}version>
        dependency>
        
        <dependency>
            <groupId>org.springframework.cloudgroupId>
            <artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
        dependency>
    dependencies>
 
project>

2、修改consumer-order80子模块的application.yml文件配置的内容，将Eureka相关配置引入

server:
  port: 80  #用80端口是因为浏览器网页服务默认的端口号都是80（80端口是为HTTP开放的）
 
spring:
  application:
    name: cloud-order-service
 
eureka:
  client:
    #表示是否将自己注册进Eureka Server里，默认为true
    register-with-eureka: true
    #是否从Eureka Server抓取已有的注册信息，默认为true，单节点无所谓，集群必须设置为true才能配合ribbon使用负载均衡
    fetch-registry: true
    service-url:
      defaultZone: http://localhost:7001/eureka

3、修改consumer-order80子模块的主启动类，将consumer-order80子模块标注为Eureka Client

package com.ken.springcloud;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
 
@SpringBootApplication
//标注为Eureka Client（服务注册中心）
@EnableEurekaClient
public class OrderMain {
 
    public static void main(String[] args) {
        SpringApplication.run(OrderMain.class,args);
    }
 
}

效果图：

4、启动consumer-order80子模块的主启动类，测试consumer-order80子模块是否成功注册进Eureka

注意：要显启动Eureka Server，然后再启动服务提供者provider-payment8001子模块，最后才启动consumer-order80子模块

效果图：

若看到Instances currently registered with Eureka下面多出一行名为cloud-order-service的服务的相关信息，则证明consumer-order80子模块成功注册进了Eureka

注：我们在application.yml配置文件里的写的服务名称就是注册在Eureka Server里的名称