<properties>
  <spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
...
<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-dependencies</artifactId>
      <version>${spring-cloud.version}</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
  return builder
    .routes()
    .route(r -> r
      .path("/google/**")
      .filters(gatewayFilterSpec -> gatewayFilterSpec.rewritePath("/google/(?<appendix>.*)", "/search?q=${appendix}"))
      .uri("http://google.com"))
  .build();
}

@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
  return builder
    .routes()
    .route(r -> r
      .path("/yandex/**")
      .filters(gatewayFilterSpec -> gatewayFilterSpec.stripPrefix(1))
      .uri("[http://yandex.ru](http://yandex.ru)"))
  .build();
}

@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
  return builder
    .routes()
    .route(r -> r
      .path("/service/**")
      .filters(gatewayFilterSpec -> gatewayFilterSpec.changeRequestUri(serverWebExchange -> {
          ServerHttpRequest originalRequest = serverWebExchange.getRequest();
          URI oldUri = serverWebExchange.getRequest().getURI();
          UriComponentsBuilder newUri = UriComponentsBuilder.fromUri(oldUri)
          .host(originalRequest.getPath().subPath(3, 4).toString() + ".com") // 0,1,2,3 - /service/<serviceName>,
          .port(null)
          .replacePath(originalRequest.getPath().subPath(4).toString());
          return Optional.of(newUri.build().toUri());
        }))
      .uri("http://ignored-URI")) // Этот URI игнорируется
  .build();
}

@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
  return builder
    .routes()
    .route(r -> r
    .order(Integer.MAX_VALUE)
    .path("/**")
    .uri("[http://localhost:8090](http://localhost:8090)"))
  .build();
}