前端:

后端网关报错:

网关配置文件:

server:
  jetty:
    threads:
      acceptors: 4
      selectors: 8
  port: 8201
  servlet:
    context-path: /

spring:
  application:
    name: gateway
  cloud:
    inetutils:
      preferred-networks: 云主机IP
    nacos:
      #配置中心
      config:
        group: DEFAULT_GROUP
        file-extension: yaml
        server-addr: 云主机IP:8848
        prefix: ${spring.application.name}
        namespace: hxds
      discovery:
        namespace: hxds
        username: nacos
        password: nacos
        server-addr: 云主机IP:8848
        heart-beat-interval: 1000
        heart-beat-timeout: 1000
        group: DEFAULT_GROUP
        ip: 内网穿透的公网域名
        port: 21796

    sentinel:
      transport:
        dashboard: 云主机IP:8718

    gateway:
      discovery:
        locator:
          enabled: true
      globalcors: # 全局的跨域处理
        add-to-simple-url-handler-mapping: true # 解决options请求被拦截问题
        corsConfigurations:
          '[/**]':
            allowedOrigins: # 允许哪些网站的跨域请求
              - "http://localhost:3000"
              - "http://127.0.0.1:3000"
              - "http://云主机IP:3000"
              - "http://本地电脑IP:3000"
            allowedMethods: # 允许的跨域ajax的请求方式
              - "GET"
              - "POST"
              - "DELETE"
              - "PUT"
              - "OPTIONS"
            allowedHeaders: "*" # 允许在请求中携带的头信息
            allowCredentials: true # 是否允许携带cookie
            maxAge: 360000 # 这次跨域检测的有效期
      routes:
        - id: bff-driver
          uri: lb://bff-driver
          predicates:
            - Path=/hxds-driver/**
          filters:
            - StripPrefix=1
        - id: hxds-mis-api
          uri: lb://hxds-mis-api
          predicates:
            - Path=/hxds-mis-api/**
          filters:
            - StripPrefix=1

  servlet:
    multipart:
      enabled: true
      max-file-size: 20MB
      max-request-size: 20MB

feign:
  sentinel:
    enabled: true

management:
  # 端点检查（健康检查）
  endpoints:
    web:
      exposure:
        include: "*"

本地ping调用IP也没问题: