[求助]关于hibernate配置问题
<P>hibernate的配置是<BR><BR><property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property><BR> <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property><BR> <property name="hibernate.connection.username">user</property><BR> <property name="hibernate.connection.password">123456</property><BR> <property name="dialect">org.hibernate.dialect.OracleDialect</property><BR> <property name="hibernate.show_sql">false</property><BR> <property name="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property><BR> <property name="connection.username">user</property><BR> <property name="connection.password">123456</property><BR> <property name="connection.driver_class"></property><BR><BR>运行程序时，会出现下面的错误：<BR>Exception in thread "main" org.hibernate.MappingException: Dialect does not support identity key generation<BR> at org.hibernate.dialect.Dialect.getIdentityColumnString(Dialect.java:392)<BR> at org.hibernate.dialect.Dialect.getIdentityColumnString(Dialect.java:403)<BR> at org.hibernate.mapping.Table.sqlCreateString(Table.java:259)<BR> at org.hibernate.cfg.Configuration.generateSchemaCreationScript(Configuration.java:669)<BR> at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:65)<BR> at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:49)<BR> at Test.main(Test.java:20)<BR><BR>原因是什么？</P>页:
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