我希望能在zuul的filter对request进行setAttribute("key",value)操作，然后在下游的服务能够通过request.getAttribute("key")的方式获取到数据；但结果未如预期发生，在filter内为request添加了attribute并未被传递到下游服务中；
/**
* Created by zhaoyuening on 2018/1/26.
*/
@Component
public class TokenCheckFilter extends ZuulFilter {
private final String JWT_HEADER_NAME = "token";
private final Logger logger = LoggerFactory.getLogger(TokenCheckFilter.class);
@Value("${token.filter}")
private boolean IS_FILTER;
@Autowired
private RoleResourceManager roleResourceManager;
@Override
public String filterType() {
return "pre";
}
@Override
public int filterOrder() {
return 5;
}
@Override
public boolean shouldFilter() {
if (IS_FILTER){
logger.info("开启token过滤");
}else{
logger.info("未开启token过滤");
}
return IS_FILTER;
}
//超级管理员角色
@Value("${root.role}")
private String ROOT_ROLE;
@Override
//TODO 目前每次修改鉴权权限等信息 需要重启
//后续版本修改后采用mq 自动更新缓存
public Object run() {
RequestContext ctx = RequestContext.getCurrentContext();
HttpServletRequest request = ctx.getRequest();
String url = request.getRequestURI();
String method = request.getMethod();
//检测资源状态 是否为白名单 或 被禁用
// 0 白名单 1 被监控权限 2 禁用
Integer resourceStatus = roleResourceManager.checkStatusForResource(method, url);
if (resourceStatus == null || resourceStatus == -1||resourceStatus == 2){
createResponce("request fail!",ctx);
return null;
} else if (resourceStatus == 0){
//白名单 放行
return null;
}
//使用jwtBean解码装载jwt信息
CodecUtils.JwtBean jwtBean = CodecUtils.JwtBean.getJwtBean(request.getHeader(JWT_HEADER_NAME));
//将信息存储到request
addRequestAttribute(jwtBean,request);
if (jwtBean != null){
//jwt 用户角色信息
List<String> roleIdList = (List<String>) jwtBean.getPlayload(JwtFieldEnum.ROLES.getField());
//指定id为1 的角色为超级管理员
if (roleIdList != null && roleIdList.contains(ROOT_ROLE)){
return null;
}
if (roleIdList != null && roleResourceManager.checkAuthority(method, url, roleIdList)) {
//该检验通过 该用户具备访问资源的权限
return null;
}
}
//游客身份
//查看是否为白名单Resource
createResponce("request fail",ctx);
return null;
}
/**
* 请求失败 调用
* @param msg
* @param ctx
*/
private void createResponce(String msg,RequestContext ctx){
// 过滤该请求，不对其进行路由
ctx.setSendZuulResponse(false);
// 返回无权限错误码
ctx.setResponseStatusCode(50008);
// 返回错误内容
ctx.setResponseBody(msg);
ctx.set("isSuccess", false);
}
/**
* 从jwtBean获取相应信息，并加装到request内
* @param jwtBean
* @param request
*/
private void addRequestAttribute(CodecUtils.JwtBean jwtBean,HttpServletRequest request) {
if (jwtBean == null) {
return;
}
//roles
Object roles = jwtBean.getPlayload(JwtFieldEnum.ROLES.getField());
Object username = jwtBean.getPlayload(JwtFieldEnum.USERNAME.getField());
Object admin = jwtBean.getPlayload(JwtFieldEnum.ADMIN.getField());
//save info to request
request.setAttribute(RequestAttributeKeyEnum.ACCOUNT_ROLES.getKey(),roles);
request.setAttribute(RequestAttributeKeyEnum.ACCOUNT_USERNAME.getKey(),username);
request.setAttribute(RequestAttributeKeyEnum.ACCOUNT_ADMIN.getKey(),admin);
RequestContext.getCurrentContext().setRequest(request);
}
}
这是我的自定义pre filter 对request进行操作发生在最后的addRequestAttribute方法内，应该如何操作让下游接收到我在filter内对request添加的数据；
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