spring cloud gateway 跨域設置

springcloud gateway用在微服務裏面的時候,在開發環境裏面由於要不一樣的端口對應不一樣的服務,可能會有由於端口問題形成的跨域問題,那麼要經過在網關裏設置跨域,由於springcloud gateway用的是webflux,因此要在webflux層設置過濾器。 代碼以下:java

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(){
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(new PathPatternParser());
        source.registerCorsConfiguration("/**", buildConfig());
        return new CorsWebFilter(source);
    }

    private CorsConfiguration buildConfig(){
        CorsConfiguration corsConfiguration = new CorsConfiguration();
		//在生產環境上最好指定域名,以避免產生跨域安全問題
        corsConfiguration.addAllowedOrigin("*");
        corsConfiguration.addAllowedHeader("*");
        corsConfiguration.addAllowedMethod("*");
        return corsConfiguration;
    }
}
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