??微服務(wù)架構(gòu)中最核心、最基礎(chǔ)的組件就是注冊(cè)中心了。下面利用Spring Cloud Eureka實(shí)現(xiàn)服務(wù)注冊(cè)中心。

Eureka服務(wù)

1、創(chuàng)建cloud工程
添加公共依賴：

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

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Greenwich.SR1</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

2、修改啟動(dòng)類

@SpringBootApplication
@EnableEurekaServer
public class EurekaApplication {
    public static void main(String[] args) {
        SpringApplication.run(EurekaApplication.class, args);
    }
}

3、修改配置文件application.yml

server:
  port: 8000

spring:
  application:
    name: Eureka
eureka:
  instance:
    hostname: localhost
  client:
    register-with-eureka: false
    fetch-registry: false
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

Eureka客戶端

1、創(chuàng)建cloud工程
添加公共依賴：

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

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Greenwich.SR1</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

2、修改啟動(dòng)類

@SpringBootApplication
@EnableDiscoveryClient
public class EurekaApplication {
    public static void main(String[] args) {
        SpringApplication.run(EurekaApplication.class, args);
    }
}

3、修改配置文件application.yml

server:
  port: 8080

spring:
  application:
    name: Eureka-demo
eureka:
  client:
      service-url:
          defaultZone: http://localhost:8000/eureka/