springMVC中得到request对象，session对象

RequestAttributes ra = RequestContextHolder.getRequestAttributes();
HttpServletRequest request = ((ServletRequestAttributes)ra).getRequest();
request.getSession().setAttribute("sessionMessage", "im‘sessionMessage!");

 @RequestMapping("/main/login")
    public String userLogin(String yhdm,
            HttpSession httpSession, HttpServletRequest request) {
         
        httpSession.setAttribute("clientUser", "a");
        request.getRemodeAddr();
        return "main/framework";
    }