feign调用携带header信息

@Configuration
public class FeignConfig {

    @Bean
    public RequestInterceptor headerInterceptor() {
        return template -> {
            ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            if (null != attributes) {
                HttpServletRequest request = attributes.getRequest();
                Enumeration<String> headerNames = request.getHeaderNames();
                if (headerNames != null) {
                    while (headerNames.hasMoreElements()) {
                        String name = headerNames.nextElement();
                        String values = request.getHeader(name);
                        // 跳过 content-length,防止报错Feign报错feign.RetryableException: too many bytes written executing
                        if (name.equals("content-length")) {
                            continue;
                        }
                        template.header(name, values);
                    }
                }
            }
        };
    }

}