怎么将数据存入cookie和取cookie

怎么将数据存入cookie和取cookie
1.存入

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//存cookie @RequestMapping("/selectUsers7") public String selectUsers7(HttpServletResponse response) {     Cookie cookie=new Cookie("loginUname","zhangsan");     cookie.setPath("/");     cookie.setMaxAge(3600);     response.addCookie(cookie);       return "showUsers";//转发 }

　　

2.取出

方式1:

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//取cookie @RequestMapping("/selectUsers8") public String selectUsers8(HttpServletRequest request) {      Cookie[] arr=   request.getCookies();      if(arr!=null)      {            for(Cookie cookie:arr)            {                if(cookie.getName().equals("loginUname"))                       System.out.println(cookie.getValue());            }      }      return "showUsers"; }

　　

方式2:

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@RequestMapping("/selectUsers9") public String selectUsers9(@CookieValue(value="loginUname") String loginUname) {       System.out.println(loginUname);     return "showUsers"; }