我得到以下异常超过三个小时。有人知道如何摆脱它吗?
javax.persistence.PersistenceException: 异常 [EclipseLink-4002] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException 内部异常: java.sql.SQLException: 暂时错误,请重试. 错误代码: 1 在 org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:188) 在 org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:517) 在 org.eclipse .persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:277) 在 org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:294) 在 org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl .