SpringCloud(Finchley版)1Eureka注册中心

2019独角兽企业重金招聘Python工程师标准>>>

一, 简介

spring cloud Finchley 官方文档: http://cloud.spring.io/spring-cloud-static/Finchley.RELEASE/single/spring-cloud.html

spring cloud 微服务的重要环节就是服务的注册于发现 , 而服务注册中心组件就是 : Eureka

二, 创建 spring cloud 项目

1, 新建 Maven 项目 cloud, 作为父包使用 :

pom.xml :

4.0.0com.gy.cloudcloud1.0-SNAPSHOTpomorg.springframework.bootspring-boot-starter-parent2.0.3.RELEASEcloud-acloud-bcloud-ccloud-dcloud-ecloud-fcloud-gcloud-hUTF-8UTF-81.8Finchley.RELEASEorg.springframework.bootspring-boot-starter-testtestorg.springframework.cloudspring-cloud-dependencies${spring-cloud.version}pomimportorg.springframework.bootspring-boot-maven-plugin

2, 新建模块Module Spring Boot 项目 cloud-a, 作为服务的注册中心

只需引用Eureka服务包即可:

org.springframework.cloudspring-cloud-starter-netflix-eureka-server

1, cloud-a pom.xml:

4.0.0com.gy.cloudcloud1.0-SNAPSHOTcloud-a0.0.1-SNAPSHOTjarcloud-aorg.springframework.cloudspring-cloud-starter-netflix-eureka-server

2, 注册中心配置: application.yml :

# http://localhost:8761/ 可访问 eureka server 界面 server:port: 8761eureka:instance:hostname: localhost # 服务IPclient:registerWithEureka: falsefetchRegistry: false# 注册地址serviceUrl:defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/ # 服务名称 spring:application:name: eurka-server

3, 注册中心启动类 CloudAApplication :

package com.gy.cloud.clouda;import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;&＃64;EnableEurekaServer &＃64;SpringBootApplication public class CloudAApplication {public static void main(String[] args) {SpringApplication.run(CloudAApplication.class, args);System.out.println("&＃61;&＃61;&＃61; 启动服务注册中心成功 &＃61;&＃61;&＃61;");} }

5, 注册中心启动成功后访问: http://localhost:8761/

简单的注册中心就搭建完成;

3, 新建客户端服务 cloud-b , 向整个项目提供服务 :

cloud-b pom.xml :

4.0.0com.gy.cloudcloud1.0-SNAPSHOTcloud-b0.0.1-SNAPSHOTjarcloud-borg.springframework.cloudspring-cloud-starter-netflix-eureka-clientorg.springframework.bootspring-boot-starter-web

cloud-b application.yml :

server:port: 8762# 服务名称 spring:application:name: service-b# 服务注册地址 eureka:client:serviceUrl:defaultZone: http://localhost:8761/eureka/

cloud-b 启动类 CloudBApplication :

package com.gy.cloud.cloudb;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController;&＃64;RestController &＃64;EnableEurekaClient &＃64;SpringBootApplication public class CloudBApplication {public static void main(String[] args) {SpringApplication.run(CloudBApplication.class, args);System.out.println("&＃61;&＃61;&＃61; 服务B启动成功 &＃61;&＃61;&＃61; ");}&＃64;Value("${server.port}")private String port;&＃64;GetMapping("/hi")public String home(String name) {name &＃61; name &＃61;&＃61; null ? "SERVICE-B" : name;return "Hi " &＃43; name &＃43; " , I am from port: " &＃43; port;}}

服务B配置完成, 启动成功后,查看: http://localhost:8761/

SERVICE-B 就会注册到 Eureka 中 ;