Feign如何在调用时添加token请求头呢?

由于一些请求中,我们需加入请求头信息
 那么Feign调用时,如何加入请求头信息呢？下文笔者将一一道来,如下所示

@RequestHeader注解参数添加到请求头的示例

 
@FeignClient(name = “capability-register”, fallback = ApiServiceClientFallBack.class )
public interface ApiServiceClient {

@GetMapping("/api/fegin")
Result test(@RequestParam("url") String path,
             @RequestParam("param") String param,
             @RequestParam("method") String method,
             @RequestParam("appKey") String appKey,
             @RequestHeader(name = "Token",required = true) String Token);
 
}

feign调用时--自动设置请求头

package com.java265.provider.configuration;

import feign.RequestInterceptor;
import feign.RequestTemplate;
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;

/** 
Feign调用的时候添加请求头Token
*/
@Configuration
public class FeignConfiguration implements RequestInterceptor {

@Override
public void apply(RequestTemplate requestTemplate) {
	ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
	HttpServletRequest request = attributes.getRequest();
	requestTemplate.header(“Token”, request.getHeader(“Token”));
  }
}