/**
  * 修改物品领用
  *
  * @param bv
  * @param errors
  * @param num
  * @return
  */
 @RequiresPermissions("receive:update")
 @RequestMapping("update")
 public ModelAndView update(@Valid BiGoodsreceiving bv, Errors errors) {
   if (errors.hasErrors()) {
     ModelAndView mav = getValidationMessage(errors);
     if (mav != null) return mav;
   }
   return ajaxDone(igoodsreceivingService.updatereceving(bv));
 }