【Cookie】清除Cookie，退出登录功能实现 清理Cookie
清理Cookie 新建一个同名的Cookie，value为null，替换掉原有的Cookie
SpringBoot代码展示
@GetMapping("/index") public String go_index( HttpServletRequest request, HttpServletResponse response){ request.getSession().removeAttribute("user"); Cookie cookie = new Cookie("token",null); cookie.setMaxAge(0);//设置存活时间，“0”即马上消失 cookie.setPath("/"); response.addCookie(cookie); return "redirect:/"; }