@Controller

@SessionAttributes(value = { "id" })

publicclass StudentController {

    @RequestMapping(value = "/student/login.do")

    public String login(Map<String, Object> map) {

        map.put("id", "29ec591c-ecb5-430e-9f86-1ef8a0b3d611");

        return"result";

    }

}

@Controller

@SessionAttributes({"userInfo"})

publicclass UserInfoController {

    @RequestMapping("/userinfo/toView.do")

    public ModelAndView editView() {

        ModelAndView mv = new ModelAndView("to");

        UserInfo userInfo = new UserInfo();

        userInfo.setUserName("admin");

        userInfo.setPassword("123456");

        userInfo.setMobile("18838218972");

        userInfo.setAddress("河南省郑州市高新区升龙又一城");

        mv.addObject("userInfo", userInfo);

        returnmv;

    }

}