如何利用 ModelAttribute 来简化 控制层代码操作

@Controller
@RequestMapping(value = "${adminPath}/check/dailyCheckItems")
public class DailyCheckItemsController extends BaseController {

@Autowired
private DailyCheckItemsService dailyCheckItemsService;

@Autowired
private OfficeService officeService;

@ModelAttribute
public DailyCheckItems get(@RequestParam(required = false) String id) {
DailyCheckItems entity = null;
if (StringUtils.isNotBlank(id)) {
entity = dailyCheckItemsService.get(id);
}
if (entity == null) {
entity = new DailyCheckItems();
}
return entity;
}

@RequiresPermissions("check:dailyCheckItems:view")
@RequestMapping(value = { "list", "" })
public String list(DailyCheckItems dailyCheckItems, Model model) {
List list = Lists.newArrayList();
List dailyCheckItemsList = dailyCheckItemsService.findList(dailyCheckItems);
DailyCheckItems.sortList(list, dailyCheckItemsList, "0");
model.addAttribute("list", list);
return "modules/check/dailyCheckItemsList";
}
}