微服务注册中心

要注意nacos集群所在的server,一定要关闭防火墙,否则容易出现各种问题。

搭建nacos集群,然后分别启动各个微服务,将它们注册到Nacos中。

  application:
    name: gulimall-coupon
  cloud:
    nacos:
      discovery:
        server-addr: 192.168.137.14

  

查看注册情况:

http://192.168.137.14:8848/nacos/#/serviceManagement?dataId=&group=&appName=&namespace=

 

 使用openfen

1)、引入open-feign

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

  

编写一个接口,告诉SpringCLoud这个接口需要调用远程服务

修改“com.bigdata.gulimall.coupon.controller.CouponController”,添加以下controller方法:

    @RequestMapping("/member/list")
    public R memberCoupons(){
        CouponEntity couponEntity = new CouponEntity();
        couponEntity.setCouponName("discount 20%");
        return R.ok().put("coupons",Arrays.asList(couponEntity));
    }

  新建“com.bigdata.gulimall.member.feign.CouponFeignService”接口

@FeignClient("gulimall_coupon")
public interface CouponFeignService {
    @RequestMapping("/coupon/coupon/member/list")
    public R memberCoupons();
}

  

修改“com.bigdata.gulimall.member.GulimallMemberApplication”类,添加上"@EnableFeignClients":

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients(basePackages = "com.bigdata.gulimall.member.feign")
public class GulimallMemberApplication {

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

  

​ 声明接口的每一个方法都是调用哪个远程服务的那个请求

 

开启远程调用功能

com.bigdata.gulimall.member.controller.MemberController

访问http://localhost:8000/member/member/coupons

posted @ 2021-02-03 17:23  巧克力曲奇  阅读(139)  评论(0)    收藏  举报