使用hibernate/derby自动创建数据库架构

我正在尝试使用hibernate创建一个内存中的derby数据库，以进行测试。 我想自动创建模式和表。 我的persistence.xml文件如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
    <persistence-unit name="sanddb_test" transaction-type="RESOURCE_LOCAL">
        <class>com.ibm.sand.index.tags.MyEntity</class>
        <properties>
            <property name="javax.persistence.jdbc.url" value="jdbc:derby:memory:testdb;create=true"/>
            <property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver"/>
            <property name="javax.persistence.jdbc.user" value="admin"/>
            <property name="javax.persistence.jdbc.password" value="admin"/>
            <property name="hibernate.hbm2ddl.auto" value="create"/>
        </properties>
    </persistence-unit>
</persistence>

com.ibm.sand.index.tags.MyEntity

但是，当我试图持久化时，我得到以下异常，表示模式不存在：

javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not prepare statement
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1387)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1310)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1316)
    at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:881)
    at com.ibm.sand.index.tags.DbTaggingInfoPersistenceManager.storeTaggingInfo(DbTaggingInfoPersistenceManager.java:21)
    at com.ibm.sand.index.tags.DbTaggingInfoPersistenceManagerTest.test(DbTaggingInfoPersistenceManagerTest.java:30)
    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:601)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.hibernate.exception.SQLGrammarException: could not prepare statement
    at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:82)
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:188)
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:117)
    at org.hibernate.id.insert.AbstractSelectingDelegate.performInsert(AbstractSelectingDelegate.java:55)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2975)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3487)
    at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
    at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:377)
    at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:214)
    at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:194)
    at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:178)
    at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:321)
    at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:286)
    at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192)
    at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
    at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:78)
    at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:208)
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:151)
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:78)
    at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:853)
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:827)
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:831)
    at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:875)
    ... 25 more
Caused by: java.sql.SQLSyntaxErrorException: Schema 'ADMIN' does not exist
    at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)
    at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
    at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
    at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
    at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement.<init>(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement20.<init>(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement30.<init>(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement40.<init>(Unknown Source)
    at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$2.doPrepare(StatementPreparerImpl.java:119)
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:182)
    ... 46 more
Caused by: java.sql.SQLException: Schema 'ADMIN' does not exist
    at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
    at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown Source)
    ... 61 more
Caused by: ERROR 42Y07: Schema 'ADMIN' does not exist
    at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
    at org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(Unknown Source)
    at org.apache.derby.impl.sql.compile.QueryTreeNode.getSchemaDescriptor(Unknown Source)
    at org.apache.derby.impl.sql.compile.QueryTreeNode.getSchemaDescriptor(Unknown Source)
    at org.apache.derby.impl.sql.compile.DMLModStatementNode.verifyTargetTable(Unknown Source)
    at org.apache.derby.impl.sql.compile.InsertNode.bindStatement(Unknown Source)
    at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source)
    at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source)
    at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown Source)
    ... 55 more

javax.persistence.PersistenceException:org.hibernate.exception.sqlgrammareexception:无法准备语句
位于org.hibernate.ejb.AbstractEntityManagerImpl.convert（AbstractEntityManagerImpl.java:1387）
位于org.hibernate.ejb.AbstractEntityManagerImpl.convert（AbstractEntityManagerImpl.java:1310）
位于org.hibernate.ejb.AbstractEntityManagerImpl.convert（AbstractEntityManagerImpl.java:1316）
位于org.hibernate.ejb.AbstractEntityManagerImpl.persist（AbstractEntityManagerImpl.java:881）
位于com.ibm.sand.index.tags.DbTaggingInfoPersistenceManager.storeTaggingInfo（DbTaggingInfoPersistenceManager.java:21）
位于com.ibm.sand.index.tags.dbtaggingInfoPersistenceManager.test（dbtaggingInfoPersistenceManager.java:30）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
在sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:57）中
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）中
位于java.lang.reflect.Method.invoke（Method.java:601）
位于org.junit.runners.model.FrameworkMethod$1.runReflectVeCall（FrameworkMethod.java:47）
位于org.junit.internal.runners.model.ReflectiveCallable.run（ReflectiveCallable.java:12）
位于org.junit.runners.model.FrameworkMethod.invokeeexplosive（FrameworkMethod.java:44）
位于org.junit.internal.runners.statements.InvokeMethod.evaluate（InvokeMethod.java:17）
位于org.junit.runners.ParentRunner.runLeaf（ParentRunner.java:271）
位于org.junit.runners.BlockJUnit4ClassRunner.runChild（BlockJUnit4ClassRunner.java:70）
位于org.junit.runners.BlockJUnit4ClassRunner.runChild（BlockJUnit4ClassRunner.java:50）
位于org.junit.runners.ParentRunner$3.run（ParentRunner.java:238）
位于org.junit.runners.ParentRunner$1.schedule（ParentRunner.java:63）
位于org.junit.runners.ParentRunner.runChildren（ParentRunner.java:236）
访问org.junit.runners.ParentRunner.access$000（ParentRunner.java:53）
位于org.junit.runners.ParentRunner$2.evaluate（ParentRunner.java:229）
位于org.junit.runners.ParentRunner.run（ParentRunner.java:309）
位于org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run（JUnit4TestReference.java:50）
位于org.eclipse.jdt.internal.junit.runner.TestExecution.run（TestExecution.java:38）
位于org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:467）
位于org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:683）
位于org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run（RemoteTestRunner.java:390）
位于org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main（RemoteTestRunner.java:197）
原因：org.hibernate.exception.sqlgrammareexception:无法准备语句
位于org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert（SQLExceptionTypeDelegate.java:82）
位于org.hibernate.exception.internal.StandardSQLExceptionConverter.convert（StandardSQLExceptionConverter.java:49）
位于org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert（SqlExceptionHelper.java:125）
位于org.hibernate.engine.jdbc.internal.StatementPrepareImpl$StatementPreparationTemplate.prepareStatement（statementPrepareImpl.java:188）
在org.hibernate.engine.jdbc.internal.StatementPrepareImpl.prepareStatement上（statementPrepareImpl.java:117）
位于org.hibernate.id.insert.AbstractSelectingDelegate.performInsert（AbstractSelectingDelegate.java:55）
位于org.hibernate.persister.entity.AbstractEntityPersister.insert（AbstractEntityPersister.java:2975）
位于org.hibernate.persister.entity.AbstractEntityPersister.insert（AbstractEntityPersister.java:3487）
在org.hibernate.action.internal.EntityIdentityInsertAction.execute（EntityIdentityInsertAction.java:81）
位于org.hibernate.engine.spi.ActionQueue.execute（ActionQueue.java:377）
位于org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction（ActionQueue.java:214）
位于org.hibernate.engine.spi.ActionQueue.addInsertAction（ActionQueue.java:194）
位于org.hibernate.engine.spi.ActionQueue.addAction（ActionQueue.java:178）
位于org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction（AbstractSaveEventListener.java:321）
位于org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate（AbstractSaveEventListener.java:286）
位于org.hibernate.event.internal.AbstractSaveEventListener.performSave（AbstractSaveEventListener.java:192）
位于org.hibernate.event.internal.AbstractSaveEventListener.SaveWithGenerateId（AbstractSaveEventListener.java:125）
位于org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGenerateId（EJB3PersistEventListener.java:78）
位于org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient（DefaultPersistEventListener.java:208）
位于org.hibernate.event.internal.DefaultPersistEventListener.onPersist（DefaultPersistEventListener.java:151）
位于org.hibernate.event.internal.DefaultPersistEventListener.onPersist（DefaultPersistEventListener.java:78）
位于org.hibernate.internal.SessionImpl.firePersist（SessionImpl.java:853）
位于org.hibernate.internal.SessionImpl.persist（SessionImpl.java:827）
位于org.hibernate.internal.SessionImpl.persist（SessionImpl.java:831）
位于org.hibernate.ejb.AbstractEntityManagerImpl.persist（AbstractEntityManagerImpl.java:875）
... 25多
原因：java.sql.SQLSyntaxErrorException:架构“ADMIN”不存在
位于org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException（未知源）
位于org.apache.derby.impl.jdbc.Util.gen
<class .... catelog="APP" ...>