identifier of an instance of was altered from xxx to xxx问题解决

DeviceRepair是一个类，Device是DeviceRepair的属性，修改DeviceRepair.Device的时候报错：identifier of an instance of was altered from xxx to xxx

@Transactionalfun updateRepair(deviceRepair: DeviceRepair,request: DeviceRepairUpdateRequest):DeviceRepair{val existDeviceId = deviceRepair.device?.idval newDeviceId = request.deviceId ?: throw BadRequestException("deviceId不能为空")if (existDeviceId != newDeviceId){val result = this.deviceMapper.searchRepair(deviceIdIn = setOf(newDeviceId))if(result?.size != 0) {throw BadRequestException("该设备已报修")}else{deviceRepair.device?.id = newDeviceId}}deviceRepair.device = newDeviceId?.let{ this.find(it) }return this.repairRepository.save(deviceRepair)}

此处报错原因是因为else语句中，给DeviceRepair的Device赋值了新的id，Hibernate会报错。

解决办法：
删除else中的操作
直接将新的Device放入DeviceRepair中就可以

@Transactionalfun updateRepair(deviceRepair: DeviceRepair,request: DeviceRepairUpdateRequest):DeviceRepair{val existDeviceId = deviceRepair.device?.idval newDeviceId = request.deviceId ?: throw BadRequestException("deviceId不能为空")if (existDeviceId != newDeviceId){val result = this.deviceMapper.searchRepair(deviceIdIn = setOf(newDeviceId))if(result?.size != 0) {throw BadRequestException("该设备已报修")}}deviceRepair.device = newDeviceId?.let{ this.find(it) }return this.repairRepository.save(deviceRepair)}
}

identifier of an instance of was altered from xxx to xxx问题解决相关推荐

identifier of an instance of was altered from to n
错误使用场景 public int receiveDogInfo(Dog dog) {dog.setIsMarked("1");dog.setSource("0" ...
identifier of an instance of was altered from to null
Hibernate的提示错误 Caused by: org.hibernate.HibernateException: identifier of an instance of ... is alte ...
【解决Hibernate异常 identifier of an instance of xxx(实体类) was altered from xxx to xxxPK】
org.hibernate.HibernateException:identifier of an instance of xxx(实体类) was altered from xxx to xxxPK ...
JPA：identifier of an instance of （entity ）was altered from 数字 to null；
项目场景: 报错如下 identifier of an instance of com.pcitc.swm.pm.SolidWasteStorRec was altered from 4 to nul ...
identifier of an instance of xxx was altered from 1 to 1
今天测试一个项目,这个项目使用了hibernate和spring,报错信息如下: org.springframework.orm.hibernate4.HibernateSystemException ...
HibernateException: identifier of an instance of
org.hibernate.HibernateException: identifier of an instance of 项目的包名was altered from XXX(id) to XXX( ...
identifier of an instance of 错误
场景当以查询的实体或者是查询的实体作为参数传送时,修改内容,就会报identifier of an instance of 的错误.持久层工具本人使用的是JPA, private Result fu ...
identifier of an instance was altered from XXXX to XXXX解决
标题问题出现的可能比较多,现在将原因及解决办法汇总如下: 例子1: 因为实体类中id的属性和hbm.xml配置文件中id的属性不一致造成的实体类中的id属性是: Java代码 public c ...
异常：identifier of an instance of cn.ebank.pojo.News was altered from 2 to 2;
原因: <id name="id" type="java.lang.Integer"> <column name=&q ...

identifier of an instance of was altered from xxx to xxx问题解决

identifier of an instance of was altered from xxx to xxx问题解决相关推荐

最新文章

热门文章