Spring Cloud Gateway 跨域

https://docs.spring.io/spring-cloud-gateway/docs/2.2.6.RELEASE/reference/html/#cors-configuration

server:
  port: 8060
spring:
  application:
    name: api-gateway
  cloud:
    # gateway的配置
    gateway:
      # 路由规则
      routes:
        - id: order_route # 路由的唯一标识， 路由到 order
          #          uri: http://localhost:8020 # 需要转发的地址
          uri: lb://order-nacos-service # 需要转发的地址  lb：使用nacos中的本地负载均衡策略
          # 断言规则 用于路由规则的匹配
          predicates:
            - Path=/order-serv/**
              # http://localhost:8060/order-serv/order/add 路由转到
            # http://localhost:8020/order-serv/order/add
#            - After=2017-01-20T17:42:47.789-07:00[Asia/Shanghai]
#            - Header=X-Request-Id,\d+
#            - Method=GET
#            - Query=name,zhangsan|lisi
#            - CheckAuth=lisi
          filters:
            - StripPrefix=1  # 转发之前去掉第一层路径
              # http://localhost:8020/order-serv/order/add 过虑成
            # http://localhost:8020/order/add
#            - AddRequestHeader=X-Request-color, blue
#            - AddRequestParameter=color, red
            - PrefixPath=/mall-order    #添加前缀， 对应微服务需要配置context-path
#            - RedirectTo=302, https://www.baidu.com/ #重定向到百度
#            - SetStatus=404
#            - CheckAuth=lisi
    #跨域配置
    globalcors:
      cors-configurations:
        '[/**]':   # 允许蹃域访问的资源
#          allowedOrigins: "https://docs.spring.io"   # 跨域允许来源
          allowedOrigins: "*"   # 跨域允许来源
          allowedMethods:
            - GET
            - POST
    # 配置 Nacos
    nacos:
      server-addr: 127.0.0.1:8848
      discovery:
        #        server-addr: 127.0.0.1:8848
        username: nacos
        password: nacos
        namespace: public

或

package com.wsm.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.reactive.CorsWebFilter;
import org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource;

@Configuration
public class CorsConfig {

    public CorsWebFilter corsWebFilter() {
        CorsConfiguration config = new CorsConfiguration();
        config.addAllowedMethod("*");  // 允许的Method
        config.addAllowedOrigin("*");  // 允许的来源
        config.addAllowedHeader("*");  // 允许的请求头参数

        // 允许访问的资源
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", config);

        return new CorsWebFilter(source);
    }
}