我插入一个空列，然后在下一个中保存数据

Question

因为当我首先在表单中向数据库中进行记录时，我注册了一个空列，然后在插入值之后使用了弹簧

@RequestMapping("/listaPalabras")
public ModelAndView listaPalabras(Palabras uploadItem, HttpServletRequest request) {
    ModelAndView modelAndView = new ModelAndView("listaPalabras");
    List<Palabras> list = palService.listPalabras();
    return new ModelAndView("listaPalabras", "list", list);

}

@RequestMapping(value = "/agregarPalabras", method = RequestMethod.GET)
public String productCreate(@ModelAttribute("palabra") Palabras palabras) {

    palService.saveOrUpdate(palabras);
    return "agregarPalabras";

}

this is result