PreserveHostHeader 过滤器

DeepSeek V3 中英对照 PreserveHostHeader Filter PreserveHostHeader Filter

PreserveHostHeader 过滤器没有参数。该过滤器设置了一个请求属性，HandlerFunction 会检查该属性以确定是否应发送原始的主机头，而不是由 HTTP 客户端确定的主机头。以下示例配置了一个 PreserveHostHeader 过滤器：

spring:
  cloud:
    gateway:
      mvc:
        routes:
        - id: preserve_host_route
          uri: https://example.org
          filters:
          - PreserveHostHeader

yaml

import static org.springframework.cloud.gateway.server.mvc.filter.BeforeFilterFunctions.preserveHostHeader;
import static org.springframework.cloud.gateway.server.mvc.handler.GatewayRouterFunctions.route;
import static org.springframework.cloud.gateway.server.mvc.handler.HandlerFunctions.http;

@Configuration
class RouteConfiguration {

    @Bean
    public RouterFunction<ServerResponse> gatewayRouterFunctionsPreserveHostHeader() {
		return route("preserve_host_route")
				.GET("/**", http("https://example.org"))
					.before(preserveHostHeader())
					.build();
    }
}

java