1.写个配置类CorsConfig (如果不行，可以不写此类，和springcloud的版本有关)

package net.youqu.micro.service.config;import org.springframework.context.annotation.Bean;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;import org.springframework.web.util.pattern.PathPatternParser;/**
 * description:
 * java项目fhadmin。org
 */@Configurationpublic class CorsConfig {    @Bean
    public CorsWebFilter corsFilter() {
        CorsConfiguration config = new CorsConfiguration();
        config.addAllowedMethod("*");
        config.addAllowedOrigin("*");
        config.addAllowedHeader("*");
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(new PathPatternParser());
        source.registerCorsConfiguration("/**", config);        return new CorsWebFilter(source);
    }
}

2.  配置 application.properties 方式

#--------gateway配置--------#跨域配置spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowedOrigins=*spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowedHeaders=*spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowedMethods=*spring.cloud.gateway.globalcors.corsConfigurations.[/**].allowCredentials=true

yaml 方式

spring:  cloud:    gateway:      globalcors:        corsConfigurations:          '[/**]':            allowCredentials: true            allowedHeaders: '*'
            allowedMethods: '*'
            allowedOrigins: '*'