java 销毁 session_「销毁session」java中session和cookie的创建与销毁 - seo实验室

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;

}