在IndexController里面，从数据库中取出用户信息到UserVo中，然后把它放到model和session中
@Controller
public class IndexController { protected Logger LOGGER = Logger.getLogger(getClass()); @Resource(name = "com.niukou.db.daoimpl.UserDao") private IUserDao userDao; @RequestMapping(value = "index.html") public ModelAndView index(HttpSession session){ UserVo userVo = userDao.getUserById(1); System.out.println(userVo.getUserName()); Map model = new HashMap<String, Object>(); session.putValue("userVo", userVo); model.put("userVo",userVo); return new ModelAndView("index", model); }}
<form action="login.html" method="post"> <input type="submit" value="submit"> </form>在TestContoller中加上@SessionAttributes
在方法体中加入@ModelAttribute用于获取从IndexController传过来的UserVo
@Controller @SessionAttributes({"userVo"}) public class TestController { @RequestMapping(value="login.html") public ModelAndView login(HttpServletRequest request, @ModelAttribute("userVo")UserVo userVo){ System.out.println(userVo.getUserName()); System.out.println(userVo.getUserId()); Map model = new HashMap<String, Object>(); userVo.setUserName("brady"); model.put("userVo", userVo); return new ModelAndView("login", model); }