Spring cloud gateway + nacos 遇到503錯誤

pom文件依賴

<dependencies>
  <!--nacos客戶端-->
  <dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
  </dependency>
  <!--gateway網關-->
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-gateway</artifactId>
  </dependency>
</dependencies>

主類加入服務發現注解

package com.gateway;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 
@EnableDiscoveryClient
@SpringBootApplication
public class GatewayApplication {
    public static void main(String[] args) {
        SpringApplication.run(GatewayApplication.class, args);
    }
}

配置yml

server:
  port: 7000
spring:
  application:
    name: service-gateway
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848
    gateway:
      discovery:
        locator:
          enabled: true
      routes:
        - id: product_route
          uri: lb://service-product
          predicates:
            - Path=/product-serv/**
          filters:
            - StripPrefix=1

測試

報503錯誤，原因是微服務不可獲取

解決：加入feign依賴

<dependencies>
  <!--nacos客戶端-->
  <dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
  </dependency>
  <!--fegin組件-->
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-openfeign</artifactId>
  </dependency>
  <!-- Feign Client for loadBalancing -->
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-loadbalancer</artifactId>
    <version>3.0.2</version>
  </dependency>
  <!--gateway網關-->
  <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-gateway</artifactId>
  </dependency>
</dependencies>

重啟，測試OK

 

猜測原因：nacos兼容feign，feign集成ribbon，默認實現負載均衡；或許是nacos不兼容springcloud-gateway自帶的ribbon。