hibernate 报错： ``` WARN: GenerationTarget encountered exception accepting command : Error executing

hibernate 报错：

WARN: GenerationTarget encountered exception accepting command : Error executing DDL via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL via JDBC Statement

在用hibernate写一个自动创建数据表的时候报错无法创建数据表，但是自动生成的sql语句没有问题，查看报错详细信息：

WARN: GenerationTarget encountered exception accepting command : Error executing DDL via JDBC Statement
org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL via JDBC Statementat org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67)at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:440)at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlStrings(SchemaCreatorImpl.java:424)at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromMetadata(SchemaCreatorImpl.java:315)at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:166)at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:135)at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:121)at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:155)at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72)at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:309)at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:452)at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:710)at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726)at com.object.testUser.test(testUser.java:22)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)at org.junit.runners.ParentRunner.run(ParentRunner.java:363)at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
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=InnoDB' at line 9at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)at java.lang.reflect.Constructor.newInstance(Constructor.java:423)at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)at com.mysql.jdbc.Util.getInstance(Util.java:408)at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:943)at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3970)at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3906)at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2524)at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2677)at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2545)at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2503)at com.mysql.jdbc.StatementImpl.executeInternal(StatementImpl.java:839)at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:739)at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54)... 36 more

sql方言配置：

<property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>

创建表的策略：

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

根据上面的报错信息，可以知道是mysql版本的问题：
在MySQL5.0以前，type=InnoDB是有效的SQL语句，但是自己用的是MySQL5.7版本，type=InnoDB不再有效了

解决办法：修改hibernate.cfg.xml中的dialect属性，将：

org.hibernate.dialect.MySQLInnoDBDialect

更改为：

org.hibernate.dialect.MySQL5InnoDBDialect

这样就没有问题，可以正常创建数据表了。

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hibernate 报错： ``` WARN: GenerationTarget encountered exception accepting command : Error executing

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