我正在编写下面的代码，将我从 db 选择的 bigDecimal 转换为 bigInteger。但是，我遇到了一个异常，可以在下面看到它以及代码。任何人都可以通过它并指导我谢谢
IntegrationsUtils.logMessage(Level.INFO, "WT Refund | Processing Transaction: " + id);
BigInteger bigIntegerId = id.setScale(0, RoundingMode.DOWN).toBigInteger();
WTRefund wtRefundTransaction = getDaoFactory().getWtRefundDao()
.findById(id.toBigInteger());
对于上述代码，我收到以下错误，任何人都可以指导导致此错误的原因吗？这里id的值为db中的154。此外，我还尝试了第二行代码，但它也给出了相同的错误。任何指导都意义重大。
java.lang.ArithmeticException: Rounding necessary
at java.base/java.math.BigDecimal.commonNeedIncrement(BigDecimal.java:4717)
at java.base/java.math.BigDecimal.needIncrement(BigDecimal.java:4767)
at java.base/java.math.BigDecimal.divideAndRound(BigDecimal.java:4681)
at java.base/java.math.BigDecimal.setScale(BigDecimal.java:2940)
at java.base/java.math.BigDecimal.toBigIntegerExact(BigDecimal.java:3557)
at org.hibernate.type.descriptor.java.BigIntegerTypeDescriptor.wrap(BigIntegerTypeDescriptor.java:88)
at org.hibernate.type.descriptor.java.BigIntegerTypeDescriptor.wrap(BigIntegerTypeDescriptor.java:19)
at org.hibernate.type.descriptor.sql.DecimalTypeDescriptor$2.doExtract(DecimalTypeDescriptor.java:63)
at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47)
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:257)
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:253)
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:243)
at org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:329)
at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:3214)
at org.hibernate.persister.entity.Loadable.hydrate(Loadable.java:94)
at org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl.loadFromResultSet(EntityReferenceInitializerImpl.java:342)
at org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl.hydrateEntityState(EntityReferenceInitializerImpl.java:269)
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.readRow(AbstractRowReader.java:80)
at org.hibernate.loader.plan.exec.internal.EntityLoadQueryDetails$EntityLoaderRowReader.readRow(EntityLoadQueryDetails.java:288)
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractRows(ResultSetProcessorImpl.java:157)
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:94)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:105)
at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:285)
at org.hibernate.persister.entity.AbstractEntityPersister.doLoad(AbstractEntityPersister.java:4521)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:4511)
at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:571)
at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:539)
at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:208)
at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:327)
at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:108)
at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:74)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:118)
at org.hibernate.internal.SessionImpl.fireLoadNoChecks(SessionImpl.java:1231)
at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1220)
at org.hibernate.internal.SessionImpl.access$2100(SessionImpl.java:202)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.doLoad(SessionImpl.java:2835)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.lambda$load$1(SessionImpl.java:2812)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.perform(SessionImpl.java:2768)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(SessionImpl.java:2812)
at org.hibernate.internal.SessionImpl.find(SessionImpl.java:3400)
at org.hibernate.internal.SessionImpl.find(SessionImpl.java:3362)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311)
at jdk.proxy2/jdk.proxy2.$Proxy117.find(Unknown Source)
at com.tlx.afx.integrations.commons.persistence.dao.BaseDAOPrimary.findById(BaseDAOPrimary.java:96)
at com.tlx.afx.integrations.commons.persistence.dao.BaseDAOPrimary$$FastClassBySpringCGLIB$$486dd08b.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:708)
at com.tlx.afx.integrations.commons.persistence.dao.WTRefundDao$$EnhancerBySpringCGLIB$$a3538153.findById(<generated>)
at com.tlx.afx.integrations.inbound.accountingentries.wtrefund.WTRefundService.listenForWTRefundTransactions(WTRefundService.java:65)
at com.tlx.afx.integrations.inbound.accountingentries.AccountingEntriesJobsTrigger.listenForIncomingTransaction15(AccountingEntriesJobsTrigger.java:418)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:95)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:842)
更新：
BigInteger bigIntegerId = id.setScale(0, RoundingMode.DOWN).toBigInteger();
WTRefund wtRefundTransaction = getDaoFactory().getWtRefundDao().findById(bigIntegerId);
上面的代码仍然给出同样的错误。
发生错误是因为 Hibernate 在 BigInteger 类上调用此方法：
public BigInteger toBigIntegerExact() {
// round to an integer, with Exception if decimal part non-0
return this.setScale(0, ROUND_UNNECESSARY).inflated();
}
注意有关异常的评论 - 这就是您所看到的。本质上，问题在于 Hibernate 试图将 BigDecimal 值转换为 BigInteger 值，但 BigDecimal 的小数部分非零，因此失败。
简而言之，它试图将带有小数部分的十进制值（例如 1.2）转换为精确的整数值（即不进行四舍五入），但这是无法完成的。
Hibernate 究竟为何尝试执行此操作取决于数据库表架构和目标类 (WTRefund)，而您尚未提供这些。
在
id.setScale(0, RoundingMode.DOWN).toBigInteger()findById或者实际上使用 findById 中的
bigIntegerId