为什么我的商品创建页面就一直报错，数据库里面也没插入任何数据。。
/**
* @author Mib_du
* @creat 2019-06-03-9:55
*/
@Service
public class ItemServiceImpl implements ItemService {
//使用validator校验输入参数
@Autowired
private ValidatorImpl validator;
@Autowired
private ItemDOMapper itemDOMapper;
@Autowired
private ItemStockDOMapper itemStockDOMapper;
//itemmodel->itemdataobject
private ItemDO itemDOconvertFromItemModel(ItemModel itemModel) {
if(itemModel == null)
return null;
ItemDO itemDO = new ItemDO();
BeanUtils.copyProperties(itemModel,itemDO);
itemDO.setPrice(itemModel.getPrice().doubleValue());
return itemDO;
}
//itemstockmodel->itemdataobject
private ItemStockDO convertFromItemModel(ItemModel itemModel){
if(itemModel == null)
return null;
ItemStockDO itemStockDO = new ItemStockDO();
itemStockDO.setItemId(itemModel.getId());
itemStockDO.setStock(itemModel.getStock());
return itemStockDO;
}
@Override
@Transactional
public ItemModel createItem(ItemModel itemModel) throws BusinessException {
//校验入参
ValidationResult result = validator.validate(itemModel);
if(result.isHasErrors()){
throw new BusinessException(EnumBusinessError.PARAMETER_VALIDATION_ERROR,result.getErrorMsg());
}
//转化itemmodel->dataobject
ItemDO itemDO = this.itemDOconvertFromItemModel(itemModel);
//写入数据库
itemDOMapper.insertSelective(itemDO);
itemModel.setId(itemDO.getId());
ItemStockDO itemStockDO = this.convertFromItemModel(itemModel);
itemStockDOMapper.insertSelective(itemStockDO);
//返回创建完成的对象
return this.getItemById(itemModel.getId());
}
@Override
public List<ItemModel> listItem(Integer id) {
return null;
}
@Override
public ItemModel getItemById(Integer id) {
ItemDO itemDO = itemDOMapper.selectByPrimaryKey(id);
if(itemDO == null)
return null;
//操作获得库存数量
ItemStockDO itemStockDO = itemStockDOMapper.selectByItemId(itemDO.getId());
//将dataobject->model
ItemModel itemModel = convertFromDataObject(itemDO,itemStockDO);
return itemModel;
}
//dataobject --> model
private ItemModel convertFromDataObject(ItemDO itemDO , ItemStockDO itemStockDO){
ItemModel itemModel = new ItemModel();
BeanUtils.copyProperties(itemDO,itemModel);
itemModel.setPrice(new BigDecimal(itemDO.getPrice()));
itemModel.setStock(itemStockDO.getStock());
return itemModel;
}
}执行到
itemDOMapper.insertSelective(itemDO);
这行就会报错，浏览器会返回下面这个错误信息：
下面这个是报错的时候报错信息：
我调试了一下，发现断点之前的数据都是传进itemDO里了的，但是就是在执行inSertselective（itemDO）这句话时就会报错了。
有哪位大佬能帮我解答下吗 谢谢！！
