@Override public void save(Item item) throws Exception { itemdao.insert(item); }
@Override public Item qetById(String itemid) throws Exception { return itemdao.queryById(itemid); }
@Override public void delete(Item item) throws Exception { itemdao.delete(item); }
@Override public void update(Item item) throws Exception { itemdao.update(item); }
@Override public List<Item> getAllItem() throws Exception { return itemdao.queryAll(); }