一、maven配置

 <groupId>com.wk.sc</groupId>
    <artifactId>springcloud-demo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.SR1</spring-cloud.version>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.4.RELEASE</version>
        <relativePath/>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
       <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--服务提供者以客户端的方式注册自己的服务-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
    </dependencies>

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

二、application.yml配置

server:
  port: 8080

spring:
  application:
    name: service-hi  # 指定应用名称，服务与服务之间通过该名称进行调用

eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka # 配置注册中心地址，该服务将在配置地址中进行服务注册。多个地址用","分隔

三、启动类

@SpringBootApplication
@EnableEurekaClient //开启客户端
@RestController
public class ScServiceApplication {

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

    @Value("${server.port}")
    private String port;

    @RequestMapping("/hi")
    public String home(@RequestParam(value = "name", defaultValue = "forezp") String name) {
        return "hi " + name + " ,i am from port:" + port;
    }

}