public ModelAndView updateStockPage(HttpServletRequest request, HttpServletResponse response)throws Exception
{
int id=Integer.parseInt(request.getParameter("id"));
ModelMap modelMap = new ModelMap();
modelMap.addAttribute("productList", productDAO.selectById(id));
modelMap.addAttribute("product", new Product());
return new ModelAndView("updateStock",modelMap);
}
public ModelAndView updateStock(HttpServletRequest request, HttpServletResponse response, Product product)throws Exception