我正在尝试使用spring @Transactional注释和timeout参数.我基本上用一些Thread.sleep()代码来测试代码.然后我按照预期得到超时异常.另外,当数据库操作花费的时间超过我的超时时间时,我想获得超时异常.我使用for update select语句在数据库的表中锁定记录.我尝试更新该记录.但程序等待,什么也不做.这是我的示例代码.
@Transactional(rollbackFor = Exception.class, timeout=5) public void executeService(Listlist) throws Exception{ List newList = gDAO.updateSentList(list); }
在这种情况下,程序应该抛出超时异常.我该如何解决？
最后我找到了解决方案......
简短的回答是,问题在于你如何测试超时 - Thread.sleep()不能使用...
答案很长:
我必须使用(因为我使用MySQL测试)是一个真实的声明 - select sleep(5).此通话结束于:
Exception in thread "main" org.hibernate.TransactionException: transaction timeout expired
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.determineRemainingTransactionTimeOutPeriod(JdbcCoordinatorImpl.java:271)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.setStatementTimeout(StatementPreparerImpl.java:208)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:187)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:160)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1885)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1862)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1839)
at org.hibernate.loader.Loader.doQuery(Loader.java:910)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:355)
at org.hibernate.loader.Loader.doList(Loader.java:2554)
at org.hibernate.loader.Loader.doList(Loader.java:2540)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370)
at org.hibernate.loader.Loader.list(Loader.java:2365)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:353)
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:1909)
at org.hibernate.internal.AbstractSessionImpl.list(AbstractSessionImpl.java:311)
at org.hibernate.internal.SQLQueryImpl.list(SQLQueryImpl.java:141)
at org.hibernate.internal.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:966)
at test.Dao.mysqlWait(Dao.java:41)
at test.Dao$$FastClassBySpringCGLIB$$bb93a016.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
at test.Dao$$EnhancerBySpringCGLIB$$da2836b3.mysqlWait()
at test.Main.main(Main.java:16)
从堆栈这引起了我的注意:
StatementPreparerImpl$StatementPreparationTemplate.setStatementTimeout(StatementPreparerImpl.java:208)
...所以我想尝试不同的用例
@Transactional(timeout=10)
public void mysqlWait() {
System.out.println("timeout: " + sessionFactory.getCurrentSession().getTransaction().getTimeout());
for (int i = 0; i < 6; i++) {
SQLQuery query = sessionFactory.getCurrentSession().createSQLQuery("select sleep(2)");
System.out.println("executed (" + i + "): " + query.uniqueResult());
}
}
它导致:
Exception in thread "main" org.hibernate.exception.GenericJDBCException: could not extract ResultSet
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:91)
at org.hibernate.loader.Loader.getResultSet(Loader.java:2066)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1863)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1839)
at org.hibernate.loader.Loader.doQuery(Loader.java:910)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:355)
at org.hibernate.loader.Loader.doList(Loader.java:2554)
at org.hibernate.loader.Loader.doList(Loader.java:2540)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370)
at org.hibernate.loader.Loader.list(Loader.java:2365)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:353)
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:1909)
at org.hibernate.internal.AbstractSessionImpl.list(AbstractSessionImpl.java:311)
at org.hibernate.internal.SQLQueryImpl.list(SQLQueryImpl.java:141)
at org.hibernate.internal.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:966)
at test.Dao.mysqlWait(Dao.java:46)
at test.Dao$$FastClassBySpringCGLIB$$bb93a016.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
at test.Dao$$EnhancerBySpringCGLIB$$df6a7e0b.mysqlWait()
at test.Main.main(Main.java:16)
Caused by: com.mysql.jdbc.exceptions.MySQLTimeoutException: Statement cancelled due to timeout or client request
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1881)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1962)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:82)
... 26 more
在日志中也是:
22:05:49.322 [main] DEBUG o.h.e.jdbc.spi.SqlExceptionHelper - could not extract ResultSet [n/a]
com.mysql.jdbc.exceptions.MySQLTimeoutException: Statement cancelled due to timeout or client request
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1881) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1962) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:82) ~[hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.getResultSet(Loader.java:2066) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1863) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1839) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.doQuery(Loader.java:910) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:355) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2554) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2540) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.Loader.list(Loader.java:2365) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:353) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:1909) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.internal.AbstractSessionImpl.list(AbstractSessionImpl.java:311) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.internal.SQLQueryImpl.list(SQLQueryImpl.java:141) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.internal.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:966) [hibernate-core-4.3.11.Final.jar:4.3.11.Final]
at test.Dao.mysqlWait(Dao.java:46) [classes/:na]
at test.Dao$$FastClassBySpringCGLIB$$bb93a016.invoke() [classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) [spring-core-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720) [spring-aop-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) [spring-aop-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) [spring-tx-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281) [spring-tx-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) [spring-tx-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) [spring-aop-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655) [spring-aop-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at test.Dao$$EnhancerBySpringCGLIB$$df6a7e0b.mysqlWait() [classes/:na]
at test.Main.main(Main.java:16) [classes/:na]
弹簧配置的重要部分是(不要指望特别的东西):
true
京公网安备 11010802040832号 | 京ICP备19059560号-6 