Spring Boot 2.5.6 API网关+Eureka服务器=404 [英] Spring Boot 2.5.6 API Gateway + Eureka Server = 404

问题描述

我正在使用Spring API网关、Eureka服务器和WebFlux创建项目。

通过春季文档，我已经启动了3项服务：

• 本地主机：3761-尤里卡
• 本地主机：4001-服务
• 本地主机：8080-api网关

尤里卡列出两项服务(网关和我的服务) 我的服务在浏览器中运行良好 我的网关只有在我的路由URI是本地主机而我真的不知道如何解决它时才会响应。

网关应用程序.yml-不工作

server:
  port: 8080

eureka:
  instance:
    hostname: localhost
    non-secure-port: 8761
    prefer-ip-address: true
  client:
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.non-secure-port}/eureka/

spring:
  application:
    name: GATEWAY-SERVER
  cloud:
    gateway:
      
      discovery:
        locator:
          enabled: true
      routes:
        - id: my-service-route
          uri: lb://MY-SERVICE
          predicates:
            - Path=/api/my/service/**

网关应用程序.yml-正在工作

server:
  port: 8080

eureka:
  instance:
    hostname: localhost
    non-secure-port: 8761
    prefer-ip-address: true
  client:
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${eureka.instance.non-secure-port}/eureka/

spring:
  application:
    name: GATEWAY-SERVER
  cloud:
    gateway:
      
      discovery:
        locator:
          enabled: true
      routes:
        - id: my-service-route
          uri: http://localhost:4001
          predicates:
            - Path=/api/my/service/**

请注意，唯一的区别是URI不查找服务名称。

推荐答案

做一些网关服务测试。我注意到了一些奇怪的事情：

我已经列出了网关上的服务：

GatewayServerApplication

@EnableEurekaClient
@EnableDiscoveryClient
@SpringBootApplication
public class GatewayServerApplication implements CommandLineRunner {
    @Autowired
    private DiscoveryClient discoveryClient;

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

    @Override
    public void run(String... args) throws Exception {
        System.out.println("LIST INSTANCES");
        List<String> list = discoveryClient.getServices();

        list.forEach(item -> {
            System.out.println("Service: " + item);
            List<ServiceInstance> instances = this.discoveryClient.getInstances(item);
            instances.forEach(instance -> {
                System.out.println("URI: " + instance.getUri());
                System.out.println("HOST: " + instance.getHost());
                System.out.println("PORT: " + instance.getPort());
                System.out.println("INSTANCE ID: " + instance.getInstanceId());
                System.out.println("SERVICE ID: " + instance.getServiceId());
            });
        });
    }
}

2021-11-13 09:24:35.633  INFO 1547 --- [           main] b.c.f.gateway.GatewayServerApplication   : Started GatewayServerApplication in 3.576 seconds (JVM running for 4.419)
LIST INSTANCES
Service: my-service
URI: http://192.168.0.103:8761
HOST: 192.168.0.103
PORT: 8761
INSTANCE ID: mbp-of-rafael:MY-SERVICE:4001
SERVICE ID: MY-SERVICE

URI和端口定义为8761(eureka服务器端口)。但我想应该是4001(我的服务港)。我说错了吗？！

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