基于springMVC框架下写的 - /**
- * 读取所有cookie
- * 注意二、从客户端读取Cookie时，包括maxAge在内的其他属性都是不可读的，也不会被提交。浏览器提交Cookie时只会提交name与value属性。maxAge属性只被浏览器用来判断Cookie是否过期
- * @param request
- * @param response
- */
- @RequestMapping("/showCookies")
- public void showCookies(HttpServletRequest request,HttpServletResponse response ){
-
- Cookie[] cookies = request.getCookies();//这样便可以获取一个cookie数组
- if (null==cookies) {
- System.out.println("没有cookie=========");
- } else {
- for(Cookie cookie : cookies){
- System.out.println("name:"+cookie.getName()+",value:"+ cookie.getValue());
- }
- }
-
- }
- /**
- * 添加cookie
- * @param response
- * @param name
- * @param value
- */
- @RequestMapping("/addCookie")
- public void addCookie(HttpServletResponse response,String name,String value){
- Cookie cookie = new Cookie(name.trim(), value.trim());
- cookie.setMaxAge(30 * 60);// 设置为30min
- cookie.setPath("/");
- System.out.println("已添加===============");
- response.addCookie(cookie);
- }
- /**
- * 修改cookie
- * @param request
- * @param response
- * @param name
- * @param value
- * 注意一、修改、删除Cookie时，新建的Cookie除value、maxAge之外的所有属性，例如name、path、domain等，都要与原Cookie完全一样。否则，浏览器将视为两个不同的Cookie不予覆盖，导致修改、删除失败。
- */
- @RequestMapping("/editCookie")
- public void editCookie(HttpServletRequest request,HttpServletResponse response,String name,String value){
- Cookie[] cookies = request.getCookies();
- if (null==cookies) {
- System.out.println("没有cookie==============");
- } else {
- for(Cookie cookie : cookies){
- if(cookie.getName().equals(name)){
- System.out.println("原值为:"+cookie.getValue());
- cookie.setValue(value);
- cookie.setPath("/");
- cookie.setMaxAge(30 * 60);// 设置为30min
- System.out.println("被修改的cookie名字为:"+cookie.getName()+",新值为:"+cookie.getValue());
- response.addCookie(cookie);
- break;
- }
- }
- }
-
- }
- /**
- * 删除cookie
- * @param request
- * @param response
- * @param name
- */
- @RequestMapping("/delCookie")
- public void delCookie(HttpServletRequest request,HttpServletResponse response,String name){
- Cookie[] cookies = request.getCookies();
- if (null==cookies) {
- System.out.println("没有cookie==============");
- } else {
- for(Cookie cookie : cookies){
- if(cookie.getName().equals(name)){
- cookie.setValue(null);
- cookie.setMaxAge(0);// 立即销毁cookie
- cookie.setPath("/");
- System.out.println("被删除的cookie名字为:"+cookie.getName());
- response.addCookie(cookie);
- break;
- }
- }
- }
- }
- /**
- * 根据名字获取cookie
- * @param request
- * @param name cookie名字
- * @return
- */
- public Cookie getCookieByName(HttpServletRequest request,String name){
- Map<String,Cookie> cookieMap = ReadCookieMap(request);
- if(cookieMap.containsKey(name)){
- Cookie cookie = (Cookie)cookieMap.get(name);
- return cookie;
- }else{
- return null;
- }
- }
-
-
-
- /**
- * 将cookie封装到Map里面
- * @param request
- * @return
- */
- private Map<String,Cookie> ReadCookieMap(HttpServletRequest request){
- Map<String,Cookie> cookieMap = new HashMap<String,Cookie>();
- Cookie[] cookies = request.getCookies();
- if(null!=cookies){
- for(Cookie cookie : cookies){
- cookieMap.put(cookie.getName(), cookie);
- }
- }
- return cookieMap;
- }
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