添加请求头

spring:
  cloud:
    gateway:
      #设置路由：路由id、路由到微服务的uri、断言
      routes:
      - id: order_route  #路由ID，全局唯一
        uri: http://localhost:8020  #目标微服务的请求地址和端口
        #配置过滤器工厂
        filters:
        - AddRequestHeader=X-Request-color, red  #添加请求头

测试http://localhost:8888/order/testgateway

@GetMapping("/testgateway")
public String testGateway(HttpServletRequest request) throws Exception {
    log.info("gateWay获取请求头X-Request-color："
            +request.getHeader("X-Request-color"));
    return "success";
}
@GetMapping("/testgateway2")
public String testGateway(@RequestHeader("X-Request-color") String color) throws Exception {
    log.info("gateWay获取请求头X-Request-color："+color);
    return "success";
}