IT工程師數位筆記本

SpringCloud(二)將服務注冊到Eureka：在上篇文章中我們已經寫好了服務站和消費者。本文將會把兩個服務注冊到Eureka服務中。

Eureka Server

package com.zhuyang.cloud;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;/** * Hello world! * */@SpringBootApplication@EnableEurekaServerpublic class EurekaServer {public static void main(String[] args) {SpringApplication.run(EurekaServer.class, args);}}

application.yml

security:  basic:    enabled: true  user:    name: user  ##Eureka server username password    password: passwd123server:  port: 8761 ##Eureka server porteureka:  client:    registerWithEureka: false    fetchRegistry: false    serviceUrl:      defaultZone: http://user:passwd123@localhost:${server.port}/eureka/ ##use spring security

ProviderDemoMicroserviceProviderUserApplication.java

package com.zhuyang.cloud;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;@SpringBootApplication@EnableDiscoveryClient  //Reigster Service to Eurekapublic class DemoMicroserviceProviderUserApplication {public static void main(String[] args) {SpringApplication.run(DemoMicroserviceProviderUserApplication.class, args);}}

application.yml
eureka:
client:
serviceUrl:
defaultZone: http://user:passwd123@localhost:8761/eureka/ ##register service to eureka server
instance:
preferIpAddress: true ConsumerDemoMicroserviceConsumerUserApplication.java

package com.zhuyang.cloud;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import org.springframework.cloud.client.loadbalancer.LoadBalanced;import org.springframework.context.annotation.Bean;import org.springframework.web.client.RestTemplate;@SpringBootApplication@EnableDiscoveryClient  //Reigster Service to Eurekapublic class DemoMicroserviceConsumerUserApplication {@Beanpublic RestTemplate restTemplate() {  // equals to RestTemplate restTemplate = new RestTemplate()return new RestTemplate();}public static void main(String[] args) {SpringApplication.run(DemoMicroserviceConsumerUserApplication.class, args);}}

application.yml

server:  port: 8000eureka:  client:    serviceUrl:      defaultZone: http://user:passwd123@localhost:8761/eureka/  instance:    preferIpAddress: true

當consumer和provider啟動后，eureka log會出現：

Registered instance UNKNOWN/windows10.microdone.cn:8000 with status UP (replication=false)Registered instance UNKNOWN/windows10.microdone.cn:8000 with status UP (replication=true)Registered instance MICIROSERVICE-PROVIDER/windows10.microdone.cn:miciroservice-provider:8001 with status UP (replication=false)Registered instance MICIROSERVICE-PROVIDER/windows10.microdone.cn:miciroservice-provider:8001 with status UP (replication=true)

同時訪問http:localhost:8761，將會看到Eureka 控制臺中有兩個剛剛注冊的服務（我家里的機器不知道為什么一直返回的是xml格式）

這樣一來我們的兩個service就成功注冊到eureka server了 .

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