Java 捕获休眠异常
我有一个Java 捕获休眠异常,java,hibernate,exception,Java,Hibernate,Exception,我有一个@存储库，如下所示： @Repository public class OrderRepository { @Autowired SessionFactory sessionFactory; public void update(Order order) { sessionFactory.getCurrentSession().update(order); } } @Transactional @Service public cl
@存储库@Repository
public class OrderRepository {
@Autowired
SessionFactory sessionFactory;
public void update(Order order) {
sessionFactory.getCurrentSession().update(order);
}
}
@Transactional
@Service
public class OrderService {
@Autowired
OrderRepository orderRepository;
public void updateOrder(Order order) {
orderRepository.update(order);
}
}
@服务调用，如下所示：
@Repository
public class OrderRepository {
@Autowired
SessionFactory sessionFactory;
public void update(Order order) {
sessionFactory.getCurrentSession().update(order);
}
}
@Transactional
@Service
public class OrderService {
@Autowired
OrderRepository orderRepository;
public void updateOrder(Order order) {
orderRepository.update(order);
}
}
在某些情况下，正在更新的订单已从数据库中删除（这是预期的，并且是良性的）。发生这种情况时，将引发异常：
SEVERE: Servlet.service() for servlet [DispatcherServlet] in context with path [/project] threw exception [Request processing failed; nested exception is org.springframework.orm.hibernate4.HibernateOptimisticLockingFailureException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1; nested exception is org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1] with root cause
org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
at org.hibernate.jdbc.Expectations$BasicExpectation.checkBatched(Expectations.java:81)
at org.hibernate.jdbc.Expectations$BasicExpectation.verifyOutcome(Expectations.java:73)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:63)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3281)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:3183)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3525)
at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:159)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:463)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:349)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:350)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1222)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:425)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:177)
at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:555)
at org.springframework.transaction.support.AbstractOrderTransactionManager.processCommit(AbstractOrderTransactionManager.java:757)
at org.springframework.transaction.support.AbstractOrderTransactionManager.commit(AbstractOrderTransactionManager.java:726)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:478)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:272)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644)
at uk.co.domain.services.OrderService$$EnhancerBySpringCGLIB$$35a2d392.updateOrder(<generated>)
at uk.co.domain.controllers.OrderController.test(RequestController.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
遗憾的是，它不起作用，用户仍然看到异常。我还尝试捕获了hibernateeexception
和stalestateeexception
，这两种方法都不起作用
我尝试将相同的try/catch添加到服务而不是存储库中，但这不起作用。如果有任何提示，我将不胜感激。实际的更新查询是在刷新时执行的。在会话中调用update（）时不会出现这种情况。在这种特殊情况下，刷新发生在提交服务方法调用的事务包装之前。顺便说一句，可以在堆栈跟踪中看到：
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:478)
因此，如果要捕获异常，应在服务外部捕获它：
try {
orderService.updateOrder(order);
}
catch (ConcurrencyFailureException e) {
...
}
即使从服务或DAO方法内部显式地flush（），捕获异常也是一个坏主意，因为它会使Hibernate会话处于不可靠的状态。应回滚事务，并立即关闭会话。如果让异常冒泡，则会自动发生这种情况，因此最好在调用服务的代码中捕获异常。实际的更新查询在刷新时执行。在会话中调用update（）时不会出现这种情况。在这种特殊情况下，刷新发生在提交服务方法调用的事务包装之前。顺便说一句，可以在堆栈跟踪中看到：
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:478)
因此，如果要捕获异常，应在服务外部捕获它：
try {
orderService.updateOrder(order);
}
catch (ConcurrencyFailureException e) {
...
}
即使从服务或DAO方法内部显式地flush（），捕获异常也是一个坏主意，因为它会使Hibernate会话处于不可靠的状态。应回滚事务，并立即关闭会话。如果您让异常冒泡，则会自动发生这种情况，因此您最好在调用服务的代码中捕获它。感谢您的清晰解释，非常有意义，并且完全按照描述工作。感谢您的清晰解释，非常有意义，并且完全按照描述工作。