RestTemplate转发带上cookie

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我是靠谱客的博主过时白云，这篇文章主要介绍RestTemplate转发带上cookie，现在分享给大家，希望可以做个参考。

1、先获取cookie，转成List

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public static List<String> getCookieList(HttpServletRequest request) {
    List<String> cookieList = new ArrayList<>();
    
    Cookie[] cookies = request.getCookies();
    if (cookies == null || cookies.length == 0) {
        return cookieList;
    }

    for (Cookie cookie : cookies) {
        cookieList.add(cookie.getName() + "=" + cookie.getValue());
    }
    
    return cookieList;
}

2、将cookieList写入Header

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String url = Config.BASE_URL + "/userlevel?inviterId=" + invit1;
String restInfo = MessageFormat.format("url:{0}, inviterId:{1}", url, invit1);
UtilFunctions.log.info("UserController#register call rest api info, " + restInfo);

HttpHeaders requestHeaders = new HttpHeaders();
List<String> cookieList = UtilFunctions.getCookieList(request);
requestHeaders.put("Cookie", cookieList);
HttpEntity<String> requestEntity = new HttpEntity<String>(null, requestHeaders);
restTemplate.exchange(url, HttpMethod.GET, requestEntity, JSONObject.class).getBody();