Feign的拦截器RequestInterceptor

配置类

@Configuration
public class FeignConfiguration implements RequestInterceptor {
    private final Logger logger = LoggerFactory.getLogger(getClass());
    @Override
    public void apply(RequestTemplate template) {
        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);
                template.header(name, values);
            }
            logger.info("feign interceptor header:{}", template);
        }
    }
}

使用方式

@FeignClient(value = "", configuration = FeignConfiguration.class)