从cookies 获取token

从cookie中获取token，在根据token获取想要的数据

public String getToken2(HttpServletRequest request) throws Exception {
   try {
      Cookie[] cookies = request.getCookies();
      if (cookies != null && cookies.length > 0) {
         for (Cookie cookie : cookies) {
            if ("token".equals(cookie.getName())) {
                       String token = cookie.getValue();
               HttpHeaders headers = new HttpHeaders();
               RestTemplate restTemplate = new RestTemplate();
               headers.put(HttpHeaders.COOKIE, Collections.singletonList("token=" + token));
               HttpEntity<String> requestEntity = new HttpEntity<>("", headers);
               ResponseEntity<String> responseEntity = restTemplate.exchange(accessTokenUrl, HttpMethod.GET, requestEntity, String.class);
               String body = responseEntity.getBody();
               JSONObject bodyObj = JSON.parseObject(body);
               Integer code = bodyObj.getInteger("code");
               if (code == 200 ) {
                  JSONObject object = bodyObj.getJSONObject("member");
                  String uid = object.getString("uid");
                  return  uid;
               }
               break;
            }
         }
      }
   } catch (Exception e) {
      e.printStackTrace();
   }
   return null;
}