Java对象转换失败-Long类型转Integer类型

对象转换工具类

/**
 * 转换工具类
 */
public class ConvertUtils {
    private static Logger logger = LoggerFactory.getLogger(ConvertUtils.class);

    public static <T> T sourceToTarget(Object source, Class<T> target){
        if(source == null){
            return null;
        }
        T targetObject = null;
        try {
            targetObject = target.newInstance();
            BeanUtils.copyProperties(source, targetObject);
        } catch (Exception e) {
            logger.error("convert error ", e);
        }

        return targetObject;
    }

    public static <T> List<T> sourceToTarget(Collection<?> sourceList, Class<T> target){
        if(sourceList == null){
            return null;
        }

        List targetList = new ArrayList<>(sourceList.size());
        try {
            for(Object source : sourceList){
                T targetObject = target.newInstance();
                BeanUtils.copyProperties(source, targetObject);
                targetList.add(targetObject);
            }
        }catch (Exception e){
            logger.error("convert error ", e);
        }

        return targetList;
    }

}

源实体类 RsDeviceEntity

/**
 * 源实体类: 网络设备同步记录表
 */
@Data
@TableName("dl_resrs_device")
public class DlResrsDeviceEntity {

	private Long id;
    /**
     * 设备类型ID 0: 路由器 1: 交换机  2:服务器 9:PC 
     */
	private Long categoryId;
 
}

目标实体类 DlResrsDeviceEntity

/**
 * 目标实体类: 网络设备表
 */
public class RsDeviceEntity {
    @JsonProperty("categoryId")
    private Long categoryId = null;
}

转换代码

// 遍历数据集
for (RsDeviceEntity rsDeviceEntity : rsDeviceEntitys.getDevices()) {
        
    // 对象转换
    DlResrsDeviceEntity dlResrsDeviceEntity = ConvertUtils.sourceToTarget(rsDeviceEntity, DlResrsDeviceEntity.class);
        
    // 入库
    resrsDeviceDao.insert(dlResrsDeviceEntity);
}

转换失败

当源对象的categoryId字段类型是Integer类型,而模板对象的categoryId字段类型是Long类型时

实体类

数据库

转换成功

当categoryId字段类型都是Long类型时

实体类

数据库