HttpServletRequest request 
HttpServletResponse response
Cookie cookie = new Cookie("cookiename","cookievalue");
response.addCookie(cookie);

cookie = new Cookie("cookiename","cookievalue");
//此方法接收一個(gè)以秒為單位的整數(shù)，該整數(shù)表示cookie的最大生存期。負(fù)值表示當(dāng)關(guān)閉瀏覽器時(shí)，該cookie將被清除，表示必須立即清除該cookie。
cookie.setMaxAge();
//設(shè)置路徑，這個(gè)路徑即該工程下都可以訪問該cookie 如果不設(shè)置路徑，那么只有設(shè)置該cookie路徑及其子路徑可以訪問
cookie.setPath("/");
response.addCookie(cookie);

Cookie[] cookies = request.getCookies();//這樣便可以獲取一個(gè)cookie數(shù)組
for(Cookie cookie : cookies){
cookie.getName();// get the cookie name
cookie.getValue(); // get the cookie value
}

/**
* 點(diǎn)贊操作
*
* @param comment
* @param request
* @param response
* @return
*/
@RequestMapping(value = TalkingConst.PATH_LOVE, method = RequestMethod.POST)
public @ResponseBody Map<String, Object> love(Comment comment, HttpServletRequest request, HttpServletResponse response) {
Map<String, Object> map = new HashMap<String, Object>();
// 根據(jù)cookie的name取的cookie getCookieByName()方法可以參考代碼塊上的鏈接處的封裝
Cookie cookie = getCookieByName(request, comment.getCommentId() + "");
// 判斷cookie是否為空
if (cookie != null) {
// cookie不為空，提示已經(jīng)贊過
// 前臺(tái)傳值
map.put(TalkingConst.ATTRIBUTE_MSG, "您已贊過，請(qǐng)休息一下~");
map.put(TalkingConst.ATTRIBUTE_NAME_RESULT, Boolean.FALSE);
} else {
// 數(shù)據(jù)庫(kù)操作，點(diǎn)贊個(gè)數(shù)加
commentService.love(comment);
// 創(chuàng)建cookie addCookie()方法可以參考代碼塊上的鏈接處的封裝
addCookie(response, comment.getCommentId() + "", "", );
map.put(TalkingConst.ATTRIBUTE_NAME_RESULT, Boolean.TRUE);
}
return map;
}