学习Hibernate时遇到的问题

  (1) 2010-12-3 9:04:44 org.hibernate.cfg.Environment <clinit>
  信息: Hibernate 3.2.1
  2010-12-3 9:04:44 org.hibernate.cfg.Environment <clinit>
  信息: hibernate.properties not found
  2010-12-3 9:04:44 org.hibernate.cfg.Environment buildBytecodeProvider
  信息: Bytecode provider name : cglib
  2010-12-3 9:04:44 org.hibernate.cfg.Environment <clinit>
  信息: using JDK 1.4 java.sql.Timestamp handling
  2010-12-3 9:04:44 org.hibernate.cfg.Configuration configure
  信息: configuring from resource: /hibernate.cfg.xml
  2010-12-3 9:04:44 org.hibernate.cfg.Configuration getConfigurationInputStream
  信息: Configuration resource: /hibernate.cfg.xml
  2010-12-3 9:04:44 org.hibernate.cfg.Configuration addResource
  信息: Reading mappings from resource : xm/Product.hbm.xml
  java.lang.ExceptionInInitializerError
  Caused by: org.hibernate.MappingNotFoundException: resource: xm/Product.hbm.xml not found
 at org.hibernate.cfg.Configuration.addResource(Configuration.java:563)
 at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1584)
 at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1552)
 at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1531)
 at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1505)
 at org.hibernate.cfg.Configuration.configure(Configuration.java:1425)
 at org.hibernate.cfg.Configuration.configure(Configuration.java:1411)
 at cn.com.ambow.ects.util.HibernateUtil.<clinit>(HibernateUtil.java:10)
  Exception in thread "main"
-----------------------------------------------------------------------------------------------
解决方法：先看看是不是单词写错了 然后测试一下连接的类 然后看看配置文件
-----------------------------------------------------------------------------------------------------------------
(2)2010-12-4 10:57:42 org.hibernate.util.JDBCExceptionReporter logExceptions
警告: SQL Error: 1054, SQLState: 42S22
2010-12-4 10:57:42 org.hibernate.util.JDBCExceptionReporter logExceptions
严重: Unknown column 'cost' in 'field list'
org.hibernate.exception.SQLGrammarException: could not insert: [cn.com.ambow.ects.entity.Order]
 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
 at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:40)
 at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2108)
 at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2588)
 at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:48)
 at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
 at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:290)
 at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:180)
 at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
 at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
 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 cn.com.ambow.ects.dao.impl.OrderDAOImpl.addOrder(OrderDAOImpl.java:19)
 at cn.com.ambow.ects.test.TestOrder.testOrderLine(TestOrder.java:33)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
 at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.sql.SQLException: Unknown column 'cost' in 'field list'
 at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2847)
 at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1531)
 at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1622)
 at com.mysql.jdbc.Connection.execSQL(Connection.java:2376)
 at com.mysql.jdbc.Connection.execSQL(Connection.java:2297)
 at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1860)
 at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1957)
 at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1880)
 at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1741)
 at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:73)
 at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:33)
 ... 41 more
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解决方法：表里没有建cost字段
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(3)2010-12-4 12:05:03 org.hibernate.LazyInitializationException <init>
严重: failed to lazily initialize a collection of role: cn.com.ambow.ects.entity.Order.lines, no session or session was closed
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: cn.com.ambow.ects.entity.Order.lines, no session or session was closed
 at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
 at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
 at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343)
 at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
 at org.hibernate.collection.PersistentSet.toString(PersistentSet.java:309)
 at java.lang.String.valueOf(String.java:2827)
 at java.lang.StringBuilder.append(StringBuilder.java:115)
 at cn.com.ambow.ects.entity.Order.toString(Order.java:63)
 at java.lang.String.valueOf(String.java:2827)
 at java.io.PrintStream.println(PrintStream.java:771)
 at cn.com.ambow.ects.test.TestOrder.testOrderLine(TestOrder.java:40)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
 at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
 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)
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解决方法：延迟加载异常 在方法里添上Hibernate.initialize(对象)方法

              给该对象初始化
-------------------------------------------------------------------------------------------------------
(4)2010-12-4 13:23:06 org.hibernate.LazyInitializationException <init>
严重: could not initialize proxy - the owning Session was closed
org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed
 at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:60)
 at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:140)
 at cn.com.ambow.ects.entity.Product$$EnhancerByCGLIB$$552ba201.toString(<generated>)
 at java.lang.String.valueOf(String.java:2827)
 at java.lang.StringBuilder.append(StringBuilder.java:115)
 at cn.com.ambow.ects.entity.OrderLine.toString(OrderLine.java:49)
 at java.lang.String.valueOf(String.java:2827)
 at java.lang.StringBuilder.append(StringBuilder.java:115)
 at java.util.AbstractCollection.toString(AbstractCollection.java:422)
 at org.hibernate.collection.PersistentSet.toString(PersistentSet.java:310)
 at java.lang.String.valueOf(String.java:2827)
 at java.lang.StringBuilder.append(StringBuilder.java:115)
 at cn.com.ambow.ects.entity.Order.toString(Order.java:61)
 at java.lang.String.valueOf(String.java:2827)
 at java.io.PrintStream.println(PrintStream.java:771)
 at cn.com.ambow.ects.test.TestOrder.testOrderLine(TestOrder.java:40)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
 at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
 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)

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解决方法：不能初始化代理实体 在配置文件里设置laze的属性为false 在方法里加上Hibernate.initialize(对象)方法
           对实体进行初始化
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(5) Hibernate:
    insert
    into
        users
        (name, password)
    values
        (?, ?)
2010-12-3 10:02:15 org.hibernate.util.JDBCExceptionReporter logExceptions
警告: SQL Error: 1146, SQLState: 42S02
2010-12-3 10:02:15 org.hibernate.util.JDBCExceptionReporter logExceptions
严重: Table 'shopping_teamten.users' doesn't exist
org.hibernate.exception.SQLGrammarException: could not insert: [cn.com.ambow.ects.entity.User]
 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
 at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:40)
 at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2108)
 at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2588)
 at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:48)
 at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
 at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:290)
 at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:180)
 at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
 at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
 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 cn.com.ambow.ects.dao.impl.UserDAOImpl.addUser(UserDAOImpl.java:22)
 at cn.com.ambow.ects.test.TestUser.testAddUser(TestUser.java:23)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
 at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
 at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
 at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
 at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
 at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.sql.SQLException: Table 'shopping_teamten.users' doesn't exist
 at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2847)
 at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1531)
 at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1622)
 at com.mysql.jdbc.Connection.execSQL(Connection.java:2376)
 at com.mysql.jdbc.Connection.execSQL(Connection.java:2297)
 at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1860)
 at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1957)
 at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1880)
 at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1741)
 at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:73)
 at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:33)
 ... 41 more
-----------------------------------------------------------------------------------------------------------------------------------------
解决方法：users表没有建 或者表不是建在目前使用的数据库里
---------------------------------------------------------------
(6)java.lang.ExceptionInInitializerError
  Caused by: org.hibernate.PropertyNotFoundException: Could not find a getter for userinfo in class     cn.com.ambow.ects.entity.User
 at org.hibernate.property.BasicPropertyAccessor.createGetter(BasicPropertyAccessor.java:282)
 at org.hibernate.property.BasicPropertyAccessor.getGetter(BasicPropertyAccessor.java:275)
 at org.hibernate.mapping.Property.getGetter(Property.java:272)
 at org.hibernate.tuple.entity.PojoEntityTuplizer.buildPropertyGetter(PojoEntityTuplizer.java:247)
 at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:125)
 at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
 at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.<init>(EntityEntityModeToTuplizerMapping.java:56)
 at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:269)
 at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:425)
 at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:109)
 at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
 at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:226)
 at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1291)
 at cn.com.ambow.ects.util.HibernateUtil.<clinit>(HibernateUtil.java:10)
Exception in thread "main"
------------------------------------------------------------------------------------------------------------
解决方法：先看看配置文件里是不是单词写错了 然后查看一下是不是写了get set 方法
-----------------------------------------------------------------------------------------------------
(7)2010-12-3 21:31:15 org.hibernate.util.JDBCExceptionReporter logExceptions
  警告: SQL Error: 1, SQLState: 23000
  2010-12-3 21:31:15 org.hibernate.util.JDBCExceptionReporter logExceptions
  严重: ORA-00001: 违反唯一约束条件 (SYSTEM.SYS_C004089)

2010-12-3 21:31:15 org.hibernate.util.JDBCExceptionReporter logExceptions
警告: SQL Error: 1, SQLState: 23000
2010-12-3 21:31:15 org.hibernate.util.JDBCExceptionReporter logExceptions
严重: ORA-00001: 违反唯一约束条件 (SYSTEM.SYS_C004089)

2010-12-3 21:31:15 org.hibernate.event.def.AbstractFlushingEventListener performExecutions
严重: Could not synchronize database state with session
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
 at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:249)
 at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:235)
 at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:139)
 at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
 at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
 at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
 at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
 at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
 at com.ambow.hibernate.day3.CarDAOImpl.editCar(CarDAOImpl.java:57)
 at com.ambow.hibernate.day3.Test.main(Test.java:33)
Caused by: java.sql.BatchUpdateException: ORA-00001: 违反唯一约束条件 (SYSTEM.SYS_C004089)

 at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:343)
 at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:10657)
 at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
 at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:242)
 ... 9 more
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
 at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
 at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
 at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:249)
 at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:235)
 at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:139)
 at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
 at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
 at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
 at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
 at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
 at com.ambow.hibernate.day3.CarDAOImpl.editCar(CarDAOImpl.java:57)
 at com.ambow.hibernate.day3.Test.main(Test.java:33)
Caused by: java.sql.BatchUpdateException: ORA-00001: 违反唯一约束条件 (SYSTEM.SYS_C004089)

 at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:343)
 at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:10657)
 at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
 at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:242)
 ... 9 more
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解决方法：

 

 

 

这些是我在学习Hibernate时遇到的问题     最后一个还没想到怎么解决 大家帮忙想想怎么解决  如果你们有什么问题 方便的话麻烦 也发给我 这样方便大家学习 谢谢！！！！！！