SetRequestHostHeader
过滤器
在某些情况下,可能需要覆盖 host header。在这种情况下,SetRequestHostHeader
过滤器可以用指定的值替换现有的 host header。该过滤器接受一个 host
参数。以下列表配置了一个 SetRequestHostHeader
过滤器
application.yml
spring:
cloud:
gateway:
mvc:
routes:
- id: set_request_host_header_route
uri: http://localhost:8080
predicates:
- Path=/headers
filters:
- name: SetRequestHostHeader
args:
host: example.org
GatewaySampleApplication.java
import static org.springframework.cloud.gateway.server.mvc.filter.BeforeFilterFunctions.uri;
import static org.springframework.cloud.gateway.server.mvc.filter.BeforeFilterFunctions.setRequestHostHeader;
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> gatewayRouterFunctionsSetRequestHostHeader() {
return route("set_request_host_header_route")
.GET("/headers", http())
.before(uri("http://localhost:8080"))
.before(setRequestHostHeader("example.org"))
.build();
}
}
SetRequestHostHeader
过滤器会将 host header 的值替换为 example.org
。