销毁session
1.后端创建cookieCookie cookName =newCookie("cookName", cookValue);
cookName.setMaxAge(60*60*24*7);//设置cookie的最大生命周期为7天
cookName.setPath("/"); //设置路径为全路径(这样写的好处是同项目下的页面都能访问该cookie
response.addCookie(cookName); //response是HttpServletResponse类型
HttpSession session = request.getSession(); //request是HttpServletRequest类型的
session.setattribute("manuse", manuse);//往session中添加字段
session.setAttribute("rank", rank);
3.后端获取cookie并干掉cookie@CookieValue("cookieName")Cookie cookieName//@CookieValue是Spring提供的注解,用在参数里
userCookie.setMaxAge(0);
userCookie.setPath("/"); //路径一定要写上,不然干不掉的
response.addCookie(userCookie);
4.后端获取session并干掉sessionHttpSession session = request.getSession();
session.invalidate();
5.前端获取session中某个字段的值
el表达式可直接获取:${attributeName}
6.前端获取cookie中某个字段的值
varuserName=$.cookie('cookName');(要写在script标签里)
------------------------------------------------下面是两个例子--------------------------------------------------------//退出
@RequestMAPPing("/destroyCookie")
publicString destroyCookie(@CookieValue("cookName") Cookie userCookie,HttpServletResponse response, HttpServletRequest request) {
//干掉cookie
userCookie.setMaxAge(0);
userCookie.setPath("/");
response.addCookie(userCookie);
//干掉session
HttpSession session = request.getSession();
session.invalidate();
return"exitSuccess";
}
//登陆
@RequestMapping("/frames")
publicmodelandview login(@RequestParam("userName") String userName,
@RequestParam("pwd") String pwd, String rank,
HttpServletResponse response, HttpServletRequest request) {
HttpSession session = request.getSession();
ModelAndView mv =newModelAndView();
//若是员工
if(rank.equals("1")) {
Staff s =newStaff(userName, pwd);
Staff staff = entityService.selectStaff(s);
if(staff ==null) {
mv.setViewName("redirect:/jump/false");
returnmv;
}
session.setAttribute("nowUserId", staff.getId());
}
//若是管理员
else{
Manager manager1 =newManager(userName, pwd);
Manager manager = entityService.selectManager(manager1);
if(manager ==null) {
mv.setViewName("redirect:/jump/false");
returnmv;
}
}
//创建cookie传入用户
Cookie cookName =newCookie("cookName", userName);
cookName.setMaxAge(60*60*24*7);
cookName.setPath("/");
response.addCookie(cookName);
Manuse manuse =entityService.selectManuse();
//往session传值
session.setAttribute("manuse", manuse);
session.setAttribute("rank", rank);
mv.setViewName("frames");
returnmv;
}
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