企业网站的种类,司法局网站建设方案,宁波网站开发rswl,服务器租用租赁springcloud Feign调用拦截器#xff08;统一处理拷贝请求头实现透传信息、内部调用鉴权、打印feign调用日志#xff09;
实现接口Feign.RequestInterceptor
实现接口 feign.RequestInterceptor 并注入到IOC容器即可生效
示范代码如下
拷贝请求头#xff0c;将原请求信…springcloud Feign调用拦截器统一处理拷贝请求头实现透传信息、内部调用鉴权、打印feign调用日志
实现接口Feign.RequestInterceptor
实现接口 feign.RequestInterceptor 并注入到IOC容器即可生效
示范代码如下
拷贝请求头将原请求信息透传下去给被调用的feign服务部分头不拷贝例如content-length内部调用鉴权标记在发起feign调用时加上标记每天一个token64位随机字符在redis记录了今天的和昨天的都有效让内部调用时有权限调用被调服务打印feign调用目标的日志 /*** author humorchen* date: 2024/5/27* description: feign 请求拦截器**/
Slf4j
public class FeignInterceptor implements RequestInterceptor {/*** 跳过某些 header* 比对时会忽略大小写*/private static final SetString SKIP_HEADER_NAMES new HashSet(Arrays.asList(transfer-encoding, content-length, accept, accept-encoding, connection));static {// 转换为小写避免大小写不一致HashSetString lowCaseSet new HashSet(SKIP_HEADER_NAMES.size());SKIP_HEADER_NAMES.forEach(name - lowCaseSet.add(name.toLowerCase()));SKIP_HEADER_NAMES.clear();SKIP_HEADER_NAMES.addAll(lowCaseSet);}/*** Called for every request. Add data using methods on the supplied {link RequestTemplate}.** param template*/Overridepublic void apply(RequestTemplate template) {ServletRequestAttributes requestAttributes (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();// 拷贝请求头信息透传信息if (requestAttributes ! null) {HttpServletRequest request requestAttributes.getRequest();EnumerationString headerNames request.getHeaderNames();if (headerNames ! null) {while (headerNames.hasMoreElements()) {// 跳过某些 headerString name headerNames.nextElement();if (SKIP_HEADER_NAMES.contains(name.toLowerCase())) {continue;}String values request.getHeader(name);template.header(name, values);}}}// 内部调用鉴权标记template.header(SaSameUtil.SAME_TOKEN, SaSameUtil.getToken());// 测试环境打印log.debug(【新版权限日志】FeignInterceptor 发起Feign调用({})请求头已拷贝same-token已颁发。, template.url());}
}
