一、代码实例

说明：此处使用的SpringBoot版本为2.1.13.RELEASE，SpringCloud版本为Greenwich.SR5
Euraka Client是将提供的服务注册到Eureka供消费者调用，主要以REST方式
1.maven依赖

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

2.application.yml配置

server:
  port: 8001
spring:
  application:
    name: client
eureka:
  instance:
    hostname: localhost
    prefer-ip-address: true
    instance-id: client-8001
  client:
    service-url:
      defaultZone: http://localhost:7001/eureka/
#info信息
info:
  app:
    name: client-8001
  company:
    name: www.xxx.com
  build:
    artifactId: ${project.artifactId}
    version: ${project.version}

说明一下：此版本的artifactId可以通过${xxx}或@xxx@方式获取，建议用${xxx}方式，@xxx@后续动态获取配置时会报一个错误，之前版本应该是$xxx$方式
3.启动类
此版本无需添加@EnableEurekaClient

@SpringBootApplication
public class Client8001Application {
    public static void main(String[] args) {
        SpringApplication.run(Client8001Application.class,args);
    }
}

4、controller类
提供rest服务

@RestController
public class HelloController {
    @GetMapping("/hello/{name}")
    public String hello(@PathVariable String name){
        return "hello,"+name;
    }
}

二、测试验证

先后启动server、client服务访问http://eureka7001:7001/

image.png
服务注册成功
image.png
鼠标点击client-8001可以查看application.yml中配置的info信息
image.png
测试client提供的服务
访问http://localhost:8001/hello/zs
结果如下：
image.png
参考：
https://blog.csdn.net/forezp/article/details/70148833
http://www.itmuch.com/spring-cloud/spring-cloud-index/
还有尚硅谷周阳老师的视频