SpringCloud(一)服务注册与发现

搭建Eureka Server服务注册中心

1、先创建好一个空的项目，在空项目的基础上以模块的方式去搭建多个应用 !

2、使用springcloud的初始化工具创建项目 EurekaServer

3、搭建好的项目EurekaServer的pom文件中的依赖包如下：

    <!--SpringBoot基础依赖-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.BUILD-SNAPSHOT</spring-cloud.version>
    </properties>

    <dependencies>
        <!--eureka 依赖-->
        <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-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

4、主程序配置类打上 @EnableEurekaServer标签，开启Eureka server

@SpringBootApplication
@EnableEurekaServer
public class EurekaserverApplication {

    public static void main(String[] args) {
        SpringApplication.run(EurekaserverApplication.class, args);
    }

}

5、修改配置文件application.yml

server:
  port: 8080
spring:
  application:
    name: eureka-server
eureka:
  instance:
      hostname: localhost  #主机名
  client:
    register-with-eureka: false #是否把自己也注册进去
    fetch-registry: false #是否拉取服务列表
    service-url:
       defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka

6、 启动服务并访问localhost:8080, 即可看到Eureka服务注册中心界面

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