Feign远程调用丢失请求头问题

feign远程调用时会构建一个新的请求模板

解决：

　　使用feign请求拦截器requestInterceptor给新的请求模板加上请求头

@Configuration
public class GuliFeignConfig {
    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate template) {
                //1、RequestContextHolder拿到刚进来的请求
                ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
                if (attributes!=null){
                    HttpServletRequest request = attributes.getRequest(); //老请求
                    //同步请求头数据,Cookie
                    String cookie = request.getHeader("Cookie");
                    //给新请求同步了老请求的cookie
                    template.header("Cookie",cookie);
                }
            }
        };
    }
}

feign异步调用丢失请求头问题

线程与线程之间请求头数据不共享

解决：分享主线程的数据给子线程

    @Override
    public OrderConfirmVo confirmOrder() throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo = new OrderConfirmVo();
        MemberRespVo memberRespVo = LoginUserInterceptor.loginUser.get();
        //获取当前主线程请求
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();

        CompletableFuture<Void> getAddressFuture = CompletableFuture.runAsync(() -> {
            //共享主线程的请求
            RequestContextHolder.setRequestAttributes(requestAttributes);
            //1、远程查询所有的收货地址列表
            List<MemberAddressVo> address = memberFeignService.getAddress(memberRespVo.getId());
            confirmVo.setAddressVos(address);
        }, executor);
        CompletableFuture.allOf(getAddressFuture,cartFuture).get();

        return confirmVo;
    }