在解决之前在gateway中用了全局配置类跨域

package com.sky.wlmall.gateway.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;


@Configuration
public 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);
    }
}

之后却报错了:
报错提示:Access to XMLHttpRequest at ‘http://localhost:88/api/sys/menu/nav?t=1646366047125’ from origin ‘http://localhost:8001’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: The value of the ‘Access-Control-Allow-Origin’ header in the response must not be the wildcard ‘*’ when the request’s credentials mode is ‘include’. The credentials mode of requests initiated by the XMLHttpRequest is controlled by the withCredentials attribute

将上面的配置类修改为如下,并配置yaml就解决了:

package com.sky.wlmall.gateway.config;
import org.springframework.boot.SpringBootConfiguration;
import org.springframework.web.reactive.config.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;


@SpringBootConfiguration
public class CorsConfig implements WebMvcConfigurer  {

    public void addCorsMappings(CorsRegistry corsRegistry){
        /**
         * 所有请求都允许跨域，使用这种配置就不需要
         * 在interceptor中配置header了
         */
        corsRegistry.addMapping("/**")
                .allowCredentials(true)
                .allowedOrigins("http://localhost:8001")
                .allowedMethods("POST", "GET", "PUT", "OPTIONS", "DELETE")
                .allowedHeaders("*")
                .maxAge(3600);
    }

}

spring:
  cloud:
    gateway:
      globalcors:
        add-to-simple-url-handler-mapping: true
        cors-configurations:
          '[/**]':
            allowedOrigins:
              - "http://localhost:8001"
            allowedMethods:
              - "GET"
              - "POST"
              - "DELETE"
              - "PUT"
              - "OPTIONS"
            allowedHeaders: "*"
            allowCredentials: true
            maxAge: 360000