Question

我有一个名为branch的表，模型类为Branch.java

当我在id 515上执行getSingleResult时，EntityManager会抛出一个奇怪的错误，如下所示

Query query = getEntityManager()
    .createNativeQuery(
        "SELECT * FROM branch t where t.enabled=true and t.id = :value1",
        Branch.class);
query.setParameter("value1", id);
branch = (Branch) query.getSingleResult();

堆栈跟踪：

javax.persistence.EntityNotFoundException：无法找到id为982的com.urbanbuz.model.Branch 在org.hibernate.ejb.Ejb3Configuration $ Ejb3EntityNotFoundDelegate.handleEntityNotFound（Ejb3Configuration.java:155）在org.hibernate.event.internal.DefaultLoadEventListener.load（DefaultLoadEventListener.java:210）在org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad（DefaultLoadEventListener.java:260）在org.hibernate.event.internal.DefaultLoadEventListener.onLoad（DefaultLoadEventListener.java:148）在org.hibernate.internal.SessionImpl.fireLoad（SessionImpl.java:1078）在org.hibernate.internal.SessionImpl.internalLoad（SessionImpl.java:1005）在org.hibernate.type.EntityType.resolveIdentifier（EntityType.java:651）在org.hibernate.type.EntityType.resolve（EntityType.java:471）在org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity（TwoPhaseLoad.java:168）在org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity（TwoPhaseLoad.java:134）在org.hibernate.loader.Loader.initializeEntitiesAndCollections（Loader.java:1103）在org.hibernate.loader.Loader.processResultSet（Loader.java:960）在org.hibernate.loader.Loader.doQuery（Loader.java:910）在org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections（Loader.java:341）在org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections（Loader.java:311）在org.hibernate.loader.Loader.loadEntity（Loader.java:2111）在org.hibernate.loader.entity.AbstractEntityLoader.load（AbstractEntityLoader.java:82）在org.hibernate.loader.entity.AbstractEntityLoader.load（AbstractEntityLoader.java:72）在org.hibernate.persister.entity.AbstractEntityPersister.load（AbstractEntityPersister.java:3887）在org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource（DefaultLoadEventListener.java:458）在org.hibernate.event.internal.DefaultLoadEventListener.doLoad（DefaultLoadEventListener.java:427）在org.hibernate.event.internal.DefaultLoadEventListener.load（DefaultLoadEventListener.java:204）在org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad（DefaultLoadEventListener.java:260）在org.hibernate.event.internal.DefaultLoadEventListener.onLoad（DefaultLoadEventListener.java:148）在org.hibernate.internal.SessionImpl.fireLoad（SessionImpl.java:1078）在org.hibernate.internal.SessionImpl.internalLoad（SessionImpl.java:1005）在org.hibernate.type.EntityType.resolveIdentifier（EntityType.java:651）在org.hibernate.type.EntityType.resolve（EntityType.java:471）在org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity（TwoPhaseLoad.java:168）在org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity（TwoPhaseLoad.java:134）在org.hibernate.loader.Loader.initializeEntitiesAndCollections（Loader.java:1103）在org.hibernate.loader.Loader.processResultSet（Loader.java:960）在org.hibernate.loader.Loader.doQuery（Loader.java:910）在org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections（Loader.java:341）在org.hibernate.loader.Loader.doList（Loader.java:2516）在org.hibernate.loader.Loader.doList（Loader.java:2502）在org.hibernate.loader.Loader.listIgnoreQueryCache（Loader.java:2332）在org.hibernate.loader.Loader.list（Loader.java:2327）在org.hibernate.loader.custom.CustomLoader.list（CustomLoader.java:338）在org.hibernate.internal.SessionImpl.listCustomQuery（SessionImpl.java:1783）在org.hibernate.internal.AbstractSessionImpl.list（AbstractSessionImpl.java:231）在org.hibernate.internal.SQLQueryImpl.list（SQLQueryImpl.java:157）在org.hibernate.ejb.QueryImpl.getSingleResult（QueryImpl.java:283）在com.urbanbuz.dao.BranchDAO.findById（BranchDAO.java:110）在com.urbanbuz.dao.BranchDAO $$ FastClassBySpringCGLIB $$ 47398e8.invoke（）在org.springframework.cglib.proxy.MethodProxy.invoke（MethodProxy.java:204）在org.springframework.aop.framework.CglibAopProxy $ CglibMethodInvocation.invokeJoinpoint（CglibAopProxy.java:717）在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:157） at org.springframework.transaction.interceptor.TransactionInterceptor $ 1.proceedWithInvocation（TransactionInterceptor.java:99） at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction（TransactionAspectSupport.java:267） at org.springframework.transaction.interceptor.TransactionInterceptor.invoke（TransactionInterceptor.java:96）在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）在org.springframework.aop.framework.CglibAopProxy $ DynamicAdvisedInterceptor.intercept（CglibAopProxy.java:653）在com.urbanbuz.dao.BranchDAO $$ EnhancerBySpringCGLIB $$ b0e2bae8.findById（）在com.urbanbuz.service.BranchService.getBranch（BranchService.java:42）在com.urbanbuz.component.SignupComponent.signUpUpload（SignupComponent.java:3030） at sun.reflect.GeneratedMethodAccessor1180.invoke（Unknown Source） at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43） at java.lang.reflect.Method.invoke（Method.java:498）在com.urbanbuz.mq.MessageProcessor.processMessage（MessageProcessor.java:112）在com.urbanbuz.mq.CoreController.handleOrder（CoreController.java:22） at sun.reflect.GeneratedMethodAccessor369.invoke（未知来源） at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43） at java.lang.reflect.Method.invoke（Method.java:498）在org.springframework.util.MethodInvoker.invoke（MethodInvoker.java:269）在org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.invokeListenerMethod（MessageListenerAdapter.java:327）在org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter.onMessage（MessageListenerAdapter.java:253）在org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener（AbstractMessageListenerContainer.java:694）在org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener（AbstractMessageListenerContainer.java:617）在org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access $ 001（SimpleMessageListenerContainer.java:82）在org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer $ 1.invokeListener（SimpleMessageListenerContainer.java:167）在org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.invokeListener（SimpleMessageListenerContainer.java:1196）在org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener（AbstractMessageListenerContainer.java:600）在org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute（SimpleMessageListenerContainer.java:960）在org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute（SimpleMessageListenerContainer.java:944）在org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access $ 700（SimpleMessageListenerContainer.java:82）在org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer $ AsyncMessageProcessingConsumer.run（SimpleMessageListenerContainer.java:1058）在java.lang.Thread.run（Thread.java:745）

提前致谢！

Answer 1

Branch.class与Device.java（设备表）的映射错误，而设备表有一个branchId 982的条目，该条目不存在。删除错误的Device.java映射并删除设备表中的错误记录解决了这个问题。

EntityNotFoundException即使实体实际可用

1 个答案: