Fegin调用其他微服务带上请求头

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

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

public class FeignRequestInterceptor 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);
            }
        }
    }
}

@Configuration
public class FeignSupportConfig {
          
   
    /**
     * feign请求拦截器
     *
     * @return
     */
    @Bean
    public RequestInterceptor requestInterceptor(){
          
   
        return new FeignRequestInterceptor();
    }
}