Spring Cloud Feign 调用微服务传递header请求头

FeignConfig配置类

package com.pojo.common.core.config;

import feign.RequestInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Enumeration;


@Configuration
public class FeignConfig {

    @Bean
    public RequestInterceptor headerInterceptor() {
        return template -> {
            ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            if (null != attributes) {
                HttpServletRequest request = attributes.getRequest();
                Enumeration headerNames = request.getHeaderNames();
                if (headerNames != null) {