【发布时间】：2011-03-14 22:55:04
【问题描述】：
我有一个 jsf/ejb3 应用程序对 oracle 数据库进行一些查询。一切正常。然后，我失去了我的数据库连接，之后，应用程序继续失败并显示以下消息：
INFO: Communication failure detected when attempting to perform read query outside of a transaction. Attempting to retry query.
然后是这个堆栈跟踪
at co.gov.icfes.bheva.delegate.ResultadosDelegate.buscarAction(ResultadosDelegate.java:46)
at co.gov.icfes.bheva.mbean.ListarResultadosHistoricos.buscarAction(ListarResultadosHistoricos.java:55)
at sun.reflect.GeneratedMethodAccessor155.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.el.parser.AstValue.invoke(AstValue.java:234)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
... 45 more
Caused by: javax.ejb.TransactionRolledbackLocalException: Exception thrown from bean
at com.sun.ejb.containers.BaseContainer.checkExceptionClientTx(BaseContainer.java:4975)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4810)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2004)
... 81 more
Caused by: javax.ejb.EJBTransactionRolledbackException
at com.sun.ejb.containers.BaseContainer.mapLocal3xException(BaseContainer.java:2253)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2053)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1955)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:198)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:84)
at $Proxy124.buscarResultados(Unknown Source)
at co.gov.icfes.bheva.service.impl.ResultadosService.buscarResultados(ResultadosService.java:33)
at sun.reflect.GeneratedMethodAccessor157.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1056)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1128)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5292)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:615)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:797)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:567)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:157)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:139)
at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:858)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:797)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:367)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5264)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5252)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:190)
... 79 more
Caused by: javax.ejb.TransactionRolledbackLocalException: Exception thrown from bean
at com.sun.ejb.containers.BaseContainer.checkExceptionClientTx(BaseContainer.java:4975)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4810)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2004)
... 104 more
Caused by: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.0.1.v20100213-r6600): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Conexión cerrada
Error Code: 17008
Call: SELECT RESULTADO_ID, PER_FISICA, PER_SOCIALES, FISICA, ESPANOL, ANO_PRESENTA, PER_ESPANOL, MES_PRESENTA, PUNTAJE_COMPARABLE, PER_QUIMICA, IDIOMAS, REGISTRO_SNP, SOCIALES, APTITUD_VERBAL, PER_APTITUD_MATEMATICA, PER_RAZONAMIENTO_ABSTRACTO, APTITUD_MATEMATICA, PER_IDIOMAS, PRODUCCION, PER_BIOLOGIA, RAZONAMIENTO_ABSTRACTO, QUIMICA, PER_RELACIONES_ESPACIALES, BIOLOGIA, PER_APTITUD_VERBAL, PUNTAJE_TOTAL, RELACIONES_ESPACIALES, APLICACION, PERSONA, ESTADO FROM BHEVA_RESULTADO WHERE (REGISTRO_SNP = ?)
bind => [GN00495]
Query: ReadAllQuery(referenceClass=Resultado sql="SELECT RESULTADO_ID, PER_FISICA, PER_SOCIALES, FISICA, ESPANOL, ANO_PRESENTA, PER_ESPANOL, MES_PRESENTA, PUNTAJE_COMPARABLE, PER_QUIMICA, IDIOMAS, REGISTRO_SNP, SOCIALES, APTITUD_VERBAL, PER_APTITUD_MATEMATICA, PER_RAZONAMIENTO_ABSTRACTO, APTITUD_MATEMATICA, PER_IDIOMAS, PRODUCCION, PER_BIOLOGIA, RAZONAMIENTO_ABSTRACTO, QUIMICA, PER_RELACIONES_ESPACIALES, BIOLOGIA, PER_APTITUD_VERBAL, PUNTAJE_TOTAL, RELACIONES_ESPACIALES, APLICACION, PERSONA, ESTADO FROM BHEVA_RESULTADO WHERE (REGISTRO_SNP = ?)")
at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:333)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.processExceptionForCommError(DatabaseAccessor.java:1422)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:679)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:530)
at org.eclipse.persistence.sessions.server.ServerSession.executeCall(ServerSession.java:529)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:205)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:191)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeSelectCall(DatasourceCallQueryMechanism.java:262)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.selectAllRows(DatasourceCallQueryMechanism.java:618)
at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRowsFromTable(ExpressionQueryMechanism.java:2537)
at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRows(ExpressionQueryMechanism.java:2496)
at org.eclipse.persistence.queries.ReadAllQuery.executeObjectLevelReadQuery(ReadAllQuery.java:455)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:997)
at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:675)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:958)
at org.eclipse.persistence.queries.ReadAllQuery.execute(ReadAllQuery.java:432)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:1021)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2857)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1225)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1299)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1299)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1299)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1299)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1207)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1167)
at org.eclipse.persistence.internal.sessions.AbstractSession.readAllObjects(AbstractSession.java:2664)
at co.gov.icfes.bheva.eao.impl.ResultadosEAO.buscarResultados(ResultadosEAO.java:59)
at sun.reflect.GeneratedMethodAccessor158.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1056)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1128)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5292)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:615)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:797)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:567)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:157)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:139)
at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:858)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:797)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:367)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5264)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5252)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:190)
... 102 more
Caused by: java.sql.SQLException: Conexión cerrada
at oracle.jdbc.driver.PhysicalConnection.prepareStatement(PhysicalConnection.java:3331)
at oracle.jdbc.OracleConnectionWrapper.prepareStatement(OracleConnectionWrapper.java:205)
at com.sun.gjc.spi.base.ConnectionHolder.prepareStatement(ConnectionHolder.java:535)
at com.sun.gjc.spi.jdbc40.ConnectionWrapper40.prepareCachedStatement(ConnectionWrapper40.java:251)
at com.sun.gjc.spi.jdbc40.ConnectionWrapper40.prepareCachedStatement(ConnectionWrapper40.java:48)
at com.sun.gjc.spi.ManagedConnection.prepareCachedStatement(ManagedConnection.java:880)
at com.sun.gjc.spi.jdbc40.ConnectionWrapper40.prepareStatement(ConnectionWrapper40.java:169)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.prepareStatement(DatabaseAccessor.java:1404)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.prepareStatement(DatabaseAccessor.java:1353)
at org.eclipse.persistence.internal.databaseaccess.DatabaseCall.prepareStatement(DatabaseCall.java:645)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:580)
... 146 more
从异常中可以看出，我正在使用 eclipselink 2。几分钟后连接恢复，应用程序继续工作，但需要几分钟。
我已经阅读了一些关于所涉及的异常类型的内容。如果有未选中的，容器就完成了这项工作，但是为什么会发生这种情况呢？
这是出现异常的代码部分：
public class ResultadosEAO implements IResultadosEAO {
@PersistenceContext(unitName = "BHEVA_EJB")
private EntityManager em;
public List<ResultadoDTO> buscarResultados(String documento, String registroSNP,
String ano, String periodo) throws SinResultadoException {
ExpressionBuilder eb = new ExpressionBuilder();
Expression expression = null;
if (registroSNP != null && !registroSNP.trim().isEmpty()){
expression = eb.get("registroSNP").equal(registroSNP);
} else if (documento != null && !documento.trim().isEmpty()){
expression = eb.get("persona").get("numeroDocumento").equal(documento);
}
expression = addExpressionParams(eb, expression, ano, periodo);
Session session = ((JpaEntityManager)em.getDelegate()).getActiveSession();
List<Resultado> resultados = session.readAllObjects(Resultado.class, expression);
List<ResultadoDTO> resultadosDTO = crearListadoResultadosDTO(resultados);
return resultadosDTO;
}
private List<ResultadoDTO> crearListadoResultadosDTO(List<Resultado> resultados) throws SinResultadoException {
List<ResultadoDTO> resultadosDTO = new ArrayList<ResultadoDTO>();
if (resultados.size() == 0){
throw new SinResultadoException("No se encuentran resultados para su búsqueda");
}
for (Resultado r : resultados){
try{
ResultadoDTO rDTO = bindResultadoDTO(r);
if (rDTO != null){
resultadosDTO.add(rDTO);
}
} catch (SinResultadoException e){
continue;
}
}
if (resultadosDTO.size() == 0){
throw new SinResultadoException("No se encuentran resultados para su búsqueda");
}
return resultadosDTO;
}
提前感谢您的阅读，
【问题讨论】：
-
检查您的应用容器的设置？
-
您的堆栈跟踪不完整？
-
您是否检查过您的异常处理是否正在终止事务但没有发生任何事情而继续进行？
标签： java jsf ejb-3.0 eclipselink