如何在gateway 中获取 webflux的 RequestContextHolder

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spring mvc中可以这样拿到request

ServletRequestAttributes attrs = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();

HttpServletRequest request = attrs.getRequest();

那么 请问如何在gateway 中获取 webflux的 request 或其上下文. 

我其实想在spring gateway中调用子组件的一个reset方法(但需要当前请求的header),在zuul中可以这样把header传递出去.但用了gateway就不知道如何操作了.

@Component
public class SecuringRequestInterceptor implements RequestInterceptor {
    @Override
    public void apply(RequestTemplate requestTemplate) {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder
                .getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        Enumeration<String> headerNames = request.getHeaderNames();
        if (headerNames != null) {
            while (headerNames.hasMoreElements()) {
                String name = headerNames.nextElement();
                String values = request.getHeader(name);
                requestTemplate.header(name, values);
            }
        }
    }
}