一、創建SpringBoot項目springcloud-eureka-client-order，過程如上一篇，有一點需要注意，選擇Eureka客戶端依賴

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二、配置文件
1、pom.xml

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.1.4.RELEASE
         
    
    com.jane
    springcloud-eureka-client-order
    0.0.1-SNAPSHOT
    springcloud-eureka-client-order
    Demo project for Spring Boot

    
        1.8
        Greenwich.SR1
    

    
        
            org.springframework.cloud
            spring-cloud-starter-netflix-eureka-client
        

        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
            org.springframework.boot
            spring-boot-starter-web
        
        
        
            org.springframework.cloud
            spring-cloud-starter-openfeign
            2.0.2.RELEASE
        
        
            org.springframework.cloud
            spring-cloud-openfeign-core
            2.0.2.RELEASE
        
        
            io.github.openfeign.form
            feign-form-spring
            3.2.2
        
        
    

    
        
            
                org.springframework.cloud
                spring-cloud-dependencies
                ${spring-cloud.version}
                pom
                import
            
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

2、啟動文件

package com.jane.springcloudeurekaclientorder;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.context.annotation.ComponentScan;

@EnableDiscoveryClient
@SpringBootApplication
@ComponentScan("com.jane")
@EnableFeignClients
public class SpringcloudEurekaClientOrderApplication {

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

}

3、application.properties

server.port=6010
spring.application.name=springcloud-eureka-client-order
eureka.client.serviceUrl.defaultZone=http://127.0.0.1:6001/eureka/

4、服務提供API,TestController

package com.jane.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {

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

    @RequestMapping(value = "/test", method = RequestMethod.GET)
    public String test(){
        return "hello，this is client-order:" + port;
    }

}

三、啟動服務
1、服務正常

2、查看注冊中心