你忘了添加BindingResult
您@modelattribute
:
@RequestMapping(value="/person", method=RequestMethod.POST)
public String contactSubmit(@modelattribute Person person, BindingResult bindingResult, Model model) {
if (bindingResult.hasErrors()) {
//errors processing
}
model.addAttribute("person", person);
return "result";
}
我已经回答了这样的问题: