spring cloud alibaba gatewaynacos503错误代码 _gateway

犀渠玉剑良家子，白马金羁侠少年。这篇文章主要讲述spring cloud alibaba gatewaynacos503错误代码相关的知识，希望能为你提供帮助。
POM文件依赖

< dependencies>
< dependency>
< groupId> org.springframework.boot< /groupId>
< artifactId> spring-boot-starter< /artifactId>
< /dependency>

< dependency>
< groupId> org.springframework.cloud< /groupId>
< artifactId> spring-cloud-starter-gateway< /artifactId>
< version> 3.0.2< /version>
< /dependency>

< dependency>
< groupId> org.springframework.boot< /groupId>
< artifactId> spring-boot-starter-test< /artifactId>
< scope> test< /scope>
< /dependency>
< /dependencies>

我在父组件中加入的nacos的相关依赖如下：

< dependency>
< groupId> com.alibaba.cloud< /groupId>
< artifactId> spring-cloud-starter-alibaba-nacos-config< /artifactId>
< version> $nacos.version< /version>
< /dependency>
< dependency>
< groupId> com.alibaba.cloud< /groupId>
< artifactId> spring-cloud-starter-alibaba-nacos-discovery< /artifactId>
< version> $nacos.version< /version>
< /dependency>

nacos的版本如下：

< properties>
< nacos.version> 2021.1< /nacos.version>
< /properties>

gateway的application.yml文件配置如下：

server:
port: 9040

spring:
application:
name: gateway
cloud:
gateway:
routes:
- id: consumer
uri: lb://consumer
#uri: http://localhost:9010
predicates:
- Path=/**
nacos:
discovery:
server-addr: localhost:8848
metadata:
preserved.heart.beat.interval: 3 #心跳间隔。时间单位:秒。心跳间隔
preserved.heart.beat.timeout: 6 #心跳暂停。时间单位:秒。即服务端6秒收不到客户端心跳，会将该客户端注册的实例设为不健康：
preserved.ip.delete.timeout: 9 #Ip删除超时。时间单位:秒。即服务端9秒收不到客户端心跳，会将该客户端注册的实例删除：

当我通过uri: localhost:9010去调用服务时，是可以调用的，但是当我用uri lb://consumer时就无法调用服务，报错503.
解决办法是：（实例项目fhadmin.cn）
加入feign依赖。

< dependencies>
< dependency>
< groupId> org.springframework.boot< /groupId>
< artifactId> spring-boot-starter< /artifactId>
< /dependency>

< dependency>
< groupId> org.springframework.cloud< /groupId>
< artifactId> spring-cloud-starter-gateway< /artifactId>
< version> 3.0.2< /version>
< /dependency>

< !--fegin组件-->
< dependency>
< groupId> org.springframework.cloud< /groupId>
< artifactId> spring-cloud-starter-openfeign< /artifactId>
< version> 3.0.2< /version>
< /dependency>
< !-- Feign Client for loadBalancing -->
< dependency>
< groupId> org.springframework.cloud< /groupId>
< artifactId> spring-cloud-loadbalancer< /artifactId>
< version> 3.0.2< /version>
< /dependency>

< dependency>
< groupId> org.springframework.boot< /groupId>
< artifactId> spring-boot-starter-test< /artifactId>
< scope> test< /scope>
< /dependency>
< /dependencies>