@RequestMapping(value = "/register", method = RequestMethod.POST)
public String register(@ModelAttribute("student") Student s, Model model) {
boolean isRegistered = sptiService.add(s);
if (isRegistered == true)
model.addAttribute("msg", "You have registered");
else
model.addAttribute("msg", "Unable to register");
return "home";
}
首先，您需要在隐藏输入中设置 msg 值。
<!doctype html>
<html lang="en">
<head></head>
<title></title>
<body>
<input type="hidden" value="${msg}" id="hiddenId">
<script type="text/javascript">
alert($("#hiddenId").val());
</script>
</body>
</html>