hibernate中的自动增长列怎么配置啊？

Question

我估计是自动增长列的哪个地方配置出错了
帮忙给改下啊
错误提示：
0 [main] ERROR org.hibernate.util.XMLHelper  - Error parsing XML: XML InputStream(30) The up in the document following the root element must be well-formed.
 Exception in thread "main" org.hibernate.InvalidMappingException: Could not parse mapping document from resource net/model/Actor.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:569)

Answer 1

你两个模块中用到了同一个表，都用Hibernate自动生成了映射文件映射类，映射类的名称相同，但DAO类中执行时不能识别到底是哪个类造成的。
解决方案：类名不要一样

Answer 2

<generator class="increment"> </generator> 
 改成NATIVE

Answer 3

该成native以后，
<id name="id" type="java.lang.Integer"> 
             <column name="id" /> 
            <generator class="native"> </generator> 
         </id> 
报的错：0 [main] ERROR org.hibernate.util.JDBCExceptionReporter  - Table/View 'HIBERNATE_UNIQUE_KEY' does not exist.
 org.hibernate.exception.SQLGrammarException: could not get or update next value
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.engine.TransactionHelper$1Work.doWork(TransactionHelper.java:41)
at org.hibernate.engine.transaction.Isolater$JdbcDelegate.delegateWork(Isolater.java:187)
at org.hibernate.engine.transaction.Isolater.doIsolatedWork(Isolater.java:43)
at org.hibernate.engine.TransactionHelper.doWorkInNewTransaction(TransactionHelper.java:51)
at org.hibernate.id.TableGenerator.generate(TableGenerator.java:94)
at org.hibernate.id.TableHiLoGenerator.generate(TableHiLoGenerator.java:61)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
at net.dao.hbn.ActorDaoHbnImpl.insert(ActorDaoHbnImpl.java:24)
at net.service.impl.GameServiceImpl.add(GameServiceImpl.java:18)
at net.service.tx.GameServiceHbnTxProxy.add(GameServiceHbnTxProxy.java:26)
at net.dao.AppTest.init(AppTest.java:35)
at net.dao.AppTest.main(AppTest.java:12)
Caused by: java.sql.SQLException: Table/View 'HIBERNATE_UNIQUE_KEY' does not exist.
at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
at org.apache.derby.client.am.Connection.prepareStatement(Unknown Source)
at org.hibernate.id.TableGenerator.doWorkInCurrentTransaction(TableGenerator.java:131)
at org.hibernate.engine.TransactionHelper$1Work.doWork(TransactionHelper.java:38)
... 19 more
Caused by: org.apache.derby.client.am.SqlException: Table/View 'HIBERNATE_UNIQUE_KEY' does not exist.
at org.apache.derby.client.am.Statement.completeSqlca(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.parsePrepareError(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.parsePRPSQLSTTreply(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.readPrepareDescribeOutput(Unknown Source)
at org.apache.derby.client.net.StatementReply.readPrepareDescribeOutput(Unknown Source)
at org.apache.derby.client.net.NetStatement.readPrepareDescribeOutput_(Unknown Source)
at org.apache.derby.client.am.Statement.readPrepareDescribeOutput(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.readPrepareDescribeInputOutput(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.flowPrepareDescribeInputOutput(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.prepare(Unknown Source)
at org.apache.derby.client.am.Connection.prepareStatementX(Unknown Source)
... 22 more
Exception in thread "main" net.service.GameServiceException: org.hibernate.exception.SQLGrammarException: could not get or update next value
at net.service.tx.GameServiceHbnTxProxy.add(GameServiceHbnTxProxy.java:33)
at net.dao.AppTest.init(AppTest.java:35)
at net.dao.AppTest.main(AppTest.java:12)
Caused by: org.hibernate.exception.SQLGrammarException: could not get or update next value
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.engine.TransactionHelper$1Work.doWork(TransactionHelper.java:41)
at org.hibernate.engine.transaction.Isolater$JdbcDelegate.delegateWork(Isolater.java:187)
at org.hibernate.engine.transaction.Isolater.doIsolatedWork(Isolater.java:43)
at org.hibernate.engine.TransactionHelper.doWorkInNewTransaction(TransactionHelper.java:51)
at org.hibernate.id.TableGenerator.generate(TableGenerator.java:94)
at org.hibernate.id.TableHiLoGenerator.generate(TableHiLoGenerator.java:61)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:99)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
at net.dao.hbn.ActorDaoHbnImpl.insert(ActorDaoHbnImpl.java:24)
at net.service.impl.GameServiceImpl.add(GameServiceImpl.java:18)
at net.service.tx.GameServiceHbnTxProxy.add(GameServiceHbnTxProxy.java:26)
... 2 more
Caused by: java.sql.SQLException: Table/View 'HIBERNATE_UNIQUE_KEY' does not exist.
at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
at org.apache.derby.client.am.Connection.prepareStatement(Unknown Source)
at org.hibernate.id.TableGenerator.doWorkInCurrentTransaction(TableGenerator.java:131)
at org.hibernate.engine.TransactionHelper$1Work.doWork(TransactionHelper.java:38)
... 19 more
Caused by: org.apache.derby.client.am.SqlException: Table/View 'HIBERNATE_UNIQUE_KEY' does not exist.
at org.apache.derby.client.am.Statement.completeSqlca(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.parsePrepareError(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.parsePRPSQLSTTreply(Unknown Source)
at org.apache.derby.client.net.NetStatementReply.readPrepareDescribeOutput(Unknown Source)
at org.apache.derby.client.net.StatementReply.readPrepareDescribeOutput(Unknown Source)
at org.apache.derby.client.net.NetStatement.readPrepareDescribeOutput_(Unknown Source)
at org.apache.derby.client.am.Statement.readPrepareDescribeOutput(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.readPrepareDescribeInputOutput(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.flowPrepareDescribeInputOutput(Unknown Source)
at org.apache.derby.client.am.PreparedStatement.prepare(Unknown Source)
at org.apache.derby.client.am.Connection.prepareStatementX(Unknown Source)
... 22 more

Answer 4

0 [main] ERROR org.hibernate.util.JDBCExceptionReporter  - Table/View 'HIBERNATE_UNIQUE_KEY' does not exist. 
 org.hibernate.exception.SQLGrammarException: could not get or update next value