诶..说来,实在是惭愧.一个错误.害惨我了..搞了几个小时..? 今天使用JSF+Spring+Hibernate框架 和mysql数据库做项目时,发生一个异常..

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我万万没有想到..居然是关键字,所引起的..?

具体Hibernate生成的sql语句如下:

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Hibernate:
??? insert
??? into
??????? pl_roles_acl
??????? (ROLE_NAME, SORT_ORDER, RESOURCE_NAME, READ, CREATE, UPDATE
??????????? , DELETE, EXECUTE)
??????????? values
??????????????? (?, ?, ?, ?, ?, ?, ?, ?)

2011-01-05 15:55:27,296 [WARN ] org.hibernate.util.JDBCExceptionReporter? - SQL Error: 1064, SQLState: 42000
2011-01-05 15:55:27,296 [ERROR] org.hibernate.util.JDBCExceptionReporter? - 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 'READ, CREATE, UPDATE, DELETE, EXECUTE) values ('SAP', 4, 'userMaintenance', 0, 0' at line 1
2011-01-05 15:55:27,296 [ERROR] org.hibernate.event.def.AbstractFlushingEventListener? - Could not synchronize database state with session
org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update
?at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90)
?at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
?at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
?at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
?at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:171)
?at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
?at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
?at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1028)
?at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:366)
?at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137)
?at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:655)
?at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:732)

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做项目的时候,? 朋友们, 千万要避免mysql或者其他数据有关键字的问题..

如果有关键字 ..

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也可以,在所对应的 .XXX.Hibernate.hbm.xml 文件里面改 ,具体操作如下:

看红色的标记,. 在关键字中 加 "[]" .或者 加, \" \" 或者 '"READ" '..都行

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<!-- 在角色对象中拿到所有的权限;-->
		<list name="acEntry" lazy="false" table="pl_roles_acl" >
			<key column="ROLE_NAME" />
			<list-index base="0" column="SORT_ORDER"/>
			<composite-element class="com.rs.common.core.model.AccessControlEntry" >
							<property name="entryName" type="java.lang.String">
					<column name="RESOURCE_NAME" sql-type="varchar" not-null="true" />
				</property>	
				<property name="permissionRead" >
					<column name="[READ]" not-null="false" />
				</property>
				<property name="permissionCreate">
					<column name="[CREATE]" not-null="false" />
				</property>
				<property name="permissionModify">
					<col