我在hibernate.cfg.xml配置文件中添加了自动创建表的的属性:(这样当数据库中没有此表是,hibernate就会自动帮我们创建一张表)

  1. <property name="hbm2ddl.auto">create</property>

但是当执行的时候出现报错:

  1. INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
  2. Hibernate: drop table if exists student
  3. 十月 08, 2018 3:42:47 下午 org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection
  4. INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess@7882c44a] for (non-JTA) DDL execution was not in auto-commit mode; the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode.
  5. Hibernate: create table student (id integer not null, name varchar(255), age integer, primary key (id)) type=MyISAM
  6. 十月 08, 2018 3:42:47 下午 org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection
  7. INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess@4bf324f9] for (non-JTA) DDL execution was not in auto-commit mode; the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode.
  8. 十月 08, 2018 3:42:47 下午 org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl handleException
  9. WARN: GenerationTarget encountered exception accepting command : Error executing DDL "create table student (id integer not null, name varchar(255), age integer, primary key (id)) type=MyISAM" via JDBC Statement
  10. org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "create table student (id integer not null, name varchar(255), age integer, primary key (id)) type=MyISAM" via JDBC Statement
  11. at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)
  12. at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:440)
  13. at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:424)
  14. at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:315)
  15. at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:166)
  16. at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:135)
  17. at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:121)
  18. at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:155)
  19. at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72)
  20. at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:310)
  21. at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:467)
  22. at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:708)
  23. at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
  24. at hibernateTest.Test1.main(Test1.java:18)
  25. Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'type=MyISAM' at line 1
  26. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  27. at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
  28. at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
  29. at java.lang.reflect.Constructor.newInstance(Unknown Source)
  30. at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
  31. at com.mysql.jdbc.Util.getInstance(Util.java:408)
  32. at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:943)
  33. at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)
  34. at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)
  35. at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527)
  36. at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)
  37. at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2483)
  38. at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2441)
  39. at com.mysql.jdbc.StatementImpl.executeInternal(StatementImpl.java:845)
  40. at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:745)
  41. at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)
  42. ... 13 more
  43.  
  44. 十月 08, 2018 3:42:47 下午 org.hibernate.tool.schema.internal.SchemaCreatorImpl applyImportSources
  45. INFO: HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl@3c443976'
  46. Hibernate: insert into student (name, age, id) values (?, ?, ?)
  47. 十月 08, 2018 3:42:47 下午 org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
  48. WARN: SQL Error: 1146, SQLState: 42S02
  49. 十月 08, 2018 3:42:47 下午 org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
  50. ERROR: Table 'student.student' doesn't exist
  51. 十月 08, 2018 3:42:47 下午 org.hibernate.internal.ExceptionMapperStandardImpl mapManagedFlushFailure
  52. ERROR: HHH000346: Error during managed flush [org.hibernate.exception.SQLGrammarException: could not execute statement]
  53. Exception in thread "main" javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute statement
  54. at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154)
  55. at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
  56. at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188)
  57. at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1460)
  58. at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:511)
  59. at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3283)
  60. at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2479)
  61. at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:473)
  62. at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:178)
  63. at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$300(JdbcResourceLocalTransactionCoordinatorImpl.java:39)
  64. at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:271)
  65. at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:98)
  66. at hibernateTest.Test1.main(Test1.java:24)
  67. Caused by: org.hibernate.exception.SQLGrammarException: could not execute statement
  68. at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63)
  69. at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
  70. at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
  71. at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)
  72. at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:178)
  73. at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3171)
  74. at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3686)
  75. at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:90)
  76. at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:604)
  77. at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:478)
  78. at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:356)
  79. at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
  80. at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1454)
  81. ... 9 more
  82. Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'student.student' doesn't exist
  83. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  84. at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
  85. at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
  86. at java.lang.reflect.Constructor.newInstance(Unknown Source)
  87. at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
  88. at com.mysql.jdbc.Util.getInstance(Util.java:408)
  89. at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:943)
  90. at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)
  91. at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)
  92. at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527)
  93. at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)
  94. at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2487)
  95. at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858)
  96. at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2079)
  97. at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2013)
  98. at com.mysql.jdbc.PreparedStatement.executeLargeUpdate(PreparedStatement.java:5104)
  99. at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1998)
  100. at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:175)
  101. ... 17 more

通过查找问题发现,其实是支持mysql的版本问题:

把:

  1. <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

改为:就可以了

  1. <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>

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