Struts2 cookie的存取

/**
     * Cookieの追加
     * @return
     * @throws Exception
     */
    private void addCookie(String name,String value){
        Cookie cookie = new Cookie(name, value);
        cookie.setMaxAge(***);
        ServletActionContext.getResponse().addCookie(cookie);
    }
    /**
     * Cookieの取得
     * @return
     * @throws Exception
     */
    private String getCookie(String name){
        HttpServletRequest request = ServletActionContext.getRequest();
        Cookie[] cookies = request.getCookies();
        for(Cookie cookie : cookies)
        {
            if(cookie.getName().equals(name))
            {
                return cookie.getValue();
            }
        }
        return null;
    }