spring cloud单点服务注册中心、服务提供者

服务注册中心：
spring boot版本为2.0.0.RELEASE
pom文件：

<dependency>
            <!-- spring cloud配置 -->
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>
        <!-- spring cloud注册中心配置 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>

        <!-- jaxb模块引用 - start -->
        <dependency>
            <groupId>javax.xml.bind</groupId>
            <artifactId>jaxb-api</artifactId>
        </dependency>
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-impl</artifactId>
            <version>2.3.0</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jaxb</groupId>
            <artifactId>jaxb-runtime</artifactId>
            <version>2.3.0</version>
        </dependency>
        <dependency>
            <groupId>javax.activation</groupId>
            <artifactId>activation</artifactId>
            <version>1.1.1</version>
        </dependency>
        <!-- jaxb模块引用 - end -->
    </dependencies>
    
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Finchley</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

配置文件：

# 在默认设置下，该服务注册中心也将自己作为客户端来尝试注册追究，所有我们需要禁用它的客户端注册行为，增加如下配置
eureka:
  instance:
    hostname: localhost
  client:
    # 由于该应用为注册中心，所以设置为false，代表不向注册中心注册自己
    register-with-eureka: false
    # 表示是否从 Eureka Server获取注册信息，默认为true。因为这是一个单点的Eureka Server，不需要同步其他的Eureka Server节点的数据，故而为false
    fetch-registry: false
    service-url:
      default-zone: http://localhost:1111/eureka/

server:
  # 端口号
  port: 1111

spring:
  # 注册中心服务ID
  application:
    name: eureka-server

启动类：

/**
 * @EnableEurekaServer 启动一个服务注册中心提供给其他应用进行对话
 */
@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {

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

}

服务提供者：

pom文件：

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <!-- spring cloud配置 -->
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>
        <!-- spring cloud注册中心配置 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.2</version>
        </dependency>
    </dependencies>

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

配置文件：

spring:
  application:
    # 服务器名称
    name: compute-service1
  cloud:
    config:
      discovery:
        # 启动服务发现的功能，开启了才能调用其它服务
        enabled: true
        # 发现的服务的名字--对应注测中心的服务名字
        service-id: eureka-server
server:
  # 端口号
  port: 2222
  servlet:
    context-path: /api/hello
eureka:
  client:
    service-url:
      defaultZone: http://localhost:1111/eureka/

启动类：

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

/**
 * @EnableDiscoveryClient 基于spring-cloud-commons，激活Eureka中的DiscoveryClient实现（自动化配置，创建DiscoveryClient接口针对Eureka
 * 客户端的EnableDiscoveryClient实例），才能实现Controller中对服务信息的输出
 * @EnableEurekaClient 基于spring-cloud-netflix
 * 如果选用的注册中心是eureka，那么就推荐@EnableEurekaClient,如果是其他的注册中心，那么推荐使用@EnableDiscoveryClient
 */
@EnableEurekaClient
@SpringBootApplication
public class Application {

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

}