@RequestMapping("/login.do")
	public String login(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException  {
		String userName = StringUtils.trimToEmpty(request.getParameter("user_name"));
		String password = StringUtils.trimToEmpty(request.getParameter("password"));
		System.out.println(userName);
		System.out.println(password);
		if (StringUtils.isEmpty(userName) ||
				StringUtils.isEmpty(password)) {
			return "index";
		}
		User user = userService.verifyUser(new User(0, userName, password, ""));
		if (null == user) {
			return "index";
		}
		request.getSession().setAttribute("kankantu_user", userName);
		request.getSession().setAttribute("kankantu_userid", user.getUserId());
		return "main";
	}