【servlet】session cookie

session 作用域 ：同一个会话的请求

获取一个session 对象 ：request.getsession();

cookie相关方法

protected void doGet(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {//HttpSession session = req.getSession();Cookie cookie = new Cookie("a","12");cookie.setMaxAge(3600*24);resp.addCookie(cookie);Cookie[] cookies = req.getCookies();for(Cookie ck:cookies){System.out.println(ck.getName()+" ----" +ck.getValue());}}