Spring boot Springboot网关使用RoutedDefinitionLocator通过路由维护元数据

我已经实现了RouteDefinitionLocator，用于创建多个服务的RouteDefinition

我有两个url，我想获取路径信息（这些只是示例url，我有大约400个url）

我已覆盖getRouteDefinitions（），如下所示

现在如果我要求像http://localhost:8080/v1/products

然后在filter（CustomFilter）中，我想知道为调用后端服务器选择了哪个路由

因为基于所选的路由，我想向后端服务器传递一些信息

有人能帮我解决这个问题吗

谢谢 阿尔佩什

1. POST /v1/products
2. PUT /v1/products/{id} 

public class CustomRouteDefinitionLocator implements RouteDefinitionLocator {

  @Override
  public Flux<RouteDefinition> getRouteDefinitions() {
    RouteDefinition routeDefinition = new RouteDefinition();
    routeDefinition.setUri(URI.create("http://localhost:8081"));

    PredicateDefinition predicate = new PredicateDefinition();
    predicate.setName(normalizeRoutePredicateName(PathRoutePredicateFactory.class));
    predicate.addArg(PATTERN_KEY, "/v1/products/**");
    routeDefinition.getPredicates().add(predicate);

    FilterDefinition filter = new FilterDefinition();
    filter.setName("CustomFilter");
    routeDefinition.getFilters().add(filter);

    Flux.just(routeDefinition);
  }
}

public class CustomFilter extends AbstractGatewayFilterFactory{

  @Override
  public GatewayFilter apply(Object config) {
    return new OrderedGatewayFilter((exchange, chain) -> {
      // Try to get Route path which selected by Gateway
      ServerHttpRequest request = exchange.getRequest();
      //business logic
      ServerWebExchange build = exchange.mutate().build();
      return chain.filter(build);
    }, 129);
  }
}