老师，你好，我在使用@Asycn时，如果方法中含有openFeign的调用方法，无法转发请求头信息到另外一个微服务中，要怎么做才能实现满足这一需求呢？

@Configuration
public class FeignConfiguration implements RequestInterceptor {
    @Override
    public void apply(RequestTemplate requestTemplate) {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder
                .getRequestAttributes();
        if (attributes != null) {
            HttpServletRequest request = attributes.getRequest();
            Enumeration<String> headerNames = request.getHeaderNames();
            if (headerNames != null) {
                while (headerNames.hasMoreElements()) {
                    String name = headerNames.nextElement();
                    String values = request.getHeader(name);
                    // 跳过 content-length
                    if (name.equals("content-length")){
                        continue;
                    }
                    if(name.equals("content-type")){
                        continue;
                    }
                    requestTemplate.header(name, values);
                }
            }
        }
    }
}