GenericJDBCException: Unable to open JDBC Connection for DDL execution ,切换pgsql报错?
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Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.GenericJDBCException: Unable to open JDBC Connection for DDL execution
参考技术A spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.mysql57Dialect检查一下mysql版本和jdbc驱动版本是否一致
org.hibernate.exception.GenericJDBCException 的发生：无法为长时间运行的进程打开连接
【中文标题】org.hibernate.exception.GenericJDBCException 的发生：无法为长时间运行的进程打开连接【英文标题】：Occurrence of org.hibernate.exception.GenericJDBCException: Could not open connection for long running process 【发布时间】：2018-04-22 12:49:30 【问题描述】：在我的应用程序中，我使用 20 个线程来完成一项工作。每个线程调用一个远程 Web 服务并更新 Oracle DB。在 Jboss restart 之后，该作业无法更新数据库，但我在日志中发现的异常为：
2017-11-08 23:36:20,706 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (EJB default - 21) javax.resource.ResourceException: IJ000460: Error checking for a transaction
2017-11-08 23:36:20,706 ERROR [org.jboss.as.ejb3] (EJB default - 16) javax.ejb.EJBTransactionRolledbackException: org.hibernate.exception.GenericJDBCException: Could not open connection
2017-11-08 23:36:20,707 ERROR [org.jboss.as.ejb3] (EJB default - 20) javax.ejb.EJBTransactionRolledbackException: org.hibernate.exception.GenericJDBCException: Could not open connection
2017-11-08 23:36:20,707 ERROR [org.jboss.as.ejb3] (EJB default - 19) javax.ejb.EJBTransactionRolledbackException: org.hibernate.exception.GenericJDBCException: Could not open connection
2017-11-08 23:36:20,710 ERROR [org.jboss.as.ejb3] (EJB default - 21) javax.ejb.EJBTransactionRolledbackException: org.hibernate.exception.GenericJDBCException: Could not open connection
2017-11-08 23:36:20,711 ERROR [org.jboss.as.ejb3.invocation] (EJB default - 16) JBAS014134: EJB Invocation failed on component PersonServiceDaoImpl for method public abstract long com.kaviletta.re.caltek.db.dao.PersonServiceDao.getNotUpdatedAddressCountBySubmissionId(int): javax.ejb.EJBTransactionRolledbackException: org.hibernate.exception.GenericJDBCException: Could not open connection
at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleInCallerTx(CMTTxInterceptor.java:162) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:252) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:341) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:238) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:182) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:72) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at com.kaviletta.re.caltek.db.dao.PersonServiceDao$$$view6.getNotUpdatedAddressCountBySubmissionId(Unknown Source) [classes:]
at com.kaviletta.re.caltek.rest.service.impl.AsynchronousServiceImpl.asyncAddressDetails(AsynchronousServiceImpl.java:61) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_55]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_55]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_55]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_55]
at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:58) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:58) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47) [jboss-as-jpa-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:272) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:339) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:238) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:182) [jboss-as-ee-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.AsyncFutureInterceptorFactory$1$1.runInvocation(AsyncFutureInterceptorFactory.java:89) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.AsyncInvocationTask.run(AsyncInvocationTask.java:73) [jboss-as-ejb3-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_55]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_55]
at org.jboss.threads.JBossThread.run(JBossThread.java:122)
Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Could not open connection
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1387) [hibernate-entitymanager-4.2.7.SP5-redhat-1.jar:4.2.7.SP5-redhat-1]
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1310) [hibernate-entitymanager-4.2.7.SP5-redhat-1.jar:4.2.7.SP5-redhat-1]
at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:316) [hibernate-entitymanager-4.2.7.SP5-redhat-1.jar:4.2.7.SP5-redhat-1]
at org.jboss.as.jpa.container.QueryNonTxInvocationDetacher.getSingleResult(QueryNonTxInvocationDetacher.java:69) [jboss-as-jpa-7.3.4.Final-redhat-1.jar:7.3.4.Final-redhat-1]
线程用于数据库操作的代码：
@PersistenceContext
EntityManager entityManager;
protected EntityManager getEntityManager()
return entityManager;
protected void setEntityManager(EntityManager manager)
this.entityManager = manager;
public long getNotUpdatedAddressCountBySubmissionId(int submissionId)
Query q = getEntityManager().createQuery(
"select count(address.addressId.submissionId) from AddressStruc address where processState!=1 and address.addressId.submissionId = :submissionId");
q.setParameter("submissionId", submissionId);
return (long) q.getSingleResult();
public void updateStudentdAddress(List<AddressStruc> studnetsAddressDetails)
try
for (AddressStruc studentdAddress : studnetsAddressDetails)
AddressStruc addressDetails = entityManager.find(AddressStruc.class, new AddressId(
studentAddress.getAddressId().getSubmissionId(), studentAddress.getAddressId().getRowId()));
if (addressDetails != null)
entityManager.merge(updateStudentDetails(addressDetails, studentAddress));
entityManager.flush();
catch (Exception e)
log.error("Exception occured while updating Address(method-->updateStudentAddress))-->" + e);
Asyn 方法调用 updateStudentAddress 方法
public AsyncResult<StudentStatusModel> asyncAddressDetails(int startRow, int noOfRecord, int submissionId)
// method for fetching record based on the start row provided
Collection<AddressStruc> addressList = studentEjb.getAddressBySubmissionId(startRow, noOfRecord, submissionId);
StudentStatusModel status = new StudentStatusModel();
status.setStartRow(startRow);
status.setRetry(false);
status.setMessage(null);
// invoke the webservice and generate student for the given address
if (StudentUtil.webServiceFailed <= 5)
OutputModel outputModel = invokeWebservice(addressList, status);
if ((outputModel != null) && (outputModel.getStudentModels().size() > 0))
// update the address details based on the submissionId+rowId
studentEjb.updateStudentAddress(new ArrayList<>(convertModelToEntity(outputModel).values()));
return new AsyncResult<StudentStatusModel>(status);
我正在使用容器托管实体管理器进行数据库转换。
每个线程调用updateStudentAddress方法，更新100条记录。
由于这项工作是长期运行，一段时间后 jboss 无法与 oracle 建立进一步的连接。
有没有办法解决这个问题？
【问题讨论】：
乍一看，我怀疑您的线程如何将连接释放回 DataSource 的连接池。 Oracle 有一个允许连接的限制（我记得默认是 1000）。因此，如果未释放连接，则下一个线程会从池中选择一个新线程，当达到最大值时 - 它会失败。您能否调查获得该异常需要多长时间？通过了多少次成功调用，以及您的 Oracle 的限制是什么。另外，请求完成时您的线程如何处理？至少我会先这样…… 此异常发生在午夜重新启动 jboss 之后，因此当作业运行时，可能会发生 jboss 重新启动，这会停止当前正在运行的线程，重新启动后它会使用新线程恢复。 你好，你有什么更新吗？原因是什么？请问你是怎么解决的？ 【参考方案1】：正如另一个答案指出的那样，您可能永远不会使用 Hibernate 捕获和忽略持久性异常，文档中明确禁止它。但是，我认为您的问题与每晚重新启动有关。如果没有完整的日志，很难确定，但是当 JBoss 启动时，某些部分会先于其他部分启动。在一切初始化之前收到入站请求是很常见的，然后出现错误。如果你能阻止重启一晚，你可以看看你是否仍然收到错误。
修复（除了不重新启动）是确保组件以正确的顺序启动或防止传入调用（如果它们通过负载平衡器很容易）直到重新启动完成。
要控制启动顺序，请编辑application.xml 并确保initialize-in-order 为真。然后按所需的启动顺序列出模块。 Web/作业层应该最后开始。
一个非常肮脏的修复方法是在代码中通过捕获错误、休眠几秒钟然后重试来处理它。我知道有些人这样做了，尽管我不推荐这样做。
【讨论】：
如果我阻止重启，错误将无法重现。【参考方案2】：org.hibernate.exception.GenericJDBCException：无法打开连接。 你能显示代码吗？这可能是同步线程的问题。或实施不当。
当您尝试对 DB 进行写入时，您需要打开事务。一个例子
employee = em.find(Employee.class, 1);
em.getTransaction().begin();
employee.setNickname("Joe the Plumber");
entityManager.merge(employee);
em.getTransaction().commit();
【讨论】：
好的，谢谢您正在准备对数据库进行交易，但您忘记了打开的交易。这可能是问题所在。 我正在使用容器管理实体管理器，所以我不需要开始交易。【参考方案3】：我认为问题可能是由于里面的异常处理引起的：asyncAddressDetails
我们在 jboss7 中发生了这个错误，在 RuntimeException 或 ApplicationException 导致事务回滚后，当这个异常被捕获并且应用程序代码在当前事务上下文完成之前对 EntityManager 进行了进一步的操作。
示例：
void methodInNewTransaction()
try
dao.inRequiredTransaction();
catch (RuntimeException ex)
; // ignore it
dao.secondCallInRequiredTransaction();
在忽略 RuntimeException 时，secondCallInRequiredTransaction 可能会导致错误。
如何解决这个问题，我看到以下可能性：
防止异常发生 使用@ApplicationException-Annotation 来控制发生异常的事务影响 重新抛出异常，以便不再使用外部事务上下文【讨论】：
您好，我遇到了同样的问题。我同意你的观点，因为在我的日志中还提到了Caused by: org.jboss.util.NestedSQLException: Transaction is not active 和Caused by: javax.resource.ResourceException: Transaction is not active，你是如何找到导致问题的根异常的？您认为数据库中的ORA-00060: deadlock detected while waiting for resource 可能会导致问题吗？谢谢
当然，ORA-00060 将导致当前事务的回滚，至少是所选事务的回滚。因此，之后期望事务的 JPA 操作或休眠操作将导致您在此处看到的内容。
你有调试ORA-00060的经验吗，请分享一下？
DBMS 本身通常会记录导致死锁的语句。查看这些语句，您应该能够找出应用程序中的哪些代码是罪魁祸首。请您的 db-admins 为您提供死锁相关信息。以上是关于GenericJDBCException: Unable to open JDBC Connection for DDL execution ,切换pgsql报错?的主要内容，如果未能解决你的问题，请参考以下文章
org.hibernate.exception.GenericJDBCException: could not execute statement
GenericJDBCException：无效的列类型：getCLOB 未实现
org.hibernate.exception.GenericJDBCException：无法执行查询] 根本原因
无法准备陈述；嵌套异常是 org.hibernate.exception.GenericJDBCException：无法准备语句