java将Object对象转换成实体类对象

ObjectMapper objectMapper=new ObjectMapper();CirclePropertiesVo circlePropertiesVo=objectMapper.convertValue(polygonGeometricDataDto.getProperties(), CirclePropertiesVo.class);

如果直接转会报错：

CirclePropertiesVo circlePropertiesVo = (CirclePropertiesVo) polygonGeometricDataDto.getProperties();

错误信息：

java.util.LinkedHashMap cannot be cast to com.hzcloud.hz.admin.api.vo.resource.supermap.polygon.child.PolygonPropertiesVo