云環(huán)境中每個服務自己有跨域解決方案，而網(wǎng)關(guān)需要做最外層的跨域解決方案.如果服務已有跨域配置網(wǎng)關(guān)也有，會出現(xiàn)*多次配置問題。

head中
multiple Access-Control-Allow-Origin

使用ZUUL配置忽略頭部信息

zuul:
#需要忽略的頭部信息，不在傳播到其他服務
  sensitive-headers: Access-Control-Allow-Origin
  ignored-headers: Access-Control-Allow-Origin,H-APP-Id,Token,APPToken

跨域配置

@Component
@Configuration
public class GateWayCorsConfig
{
    @Bean
    public CorsFilter corsFilter() {
        final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        final CorsConfiguration corsConfiguration = new CorsConfiguration();
//        corsConfiguration.setAllowCredentials(true);
        corsConfiguration.addAllowedHeader("*");
        corsConfiguration.addAllowedOrigin("*");
        corsConfiguration.addAllowedMethod("*");
        source.registerCorsConfiguration("/**", corsConfiguration);
        return new CorsFilter(source);
    }
}