spring+hibernate处理oracle中的blob字段的报错
做毕设用到oracle的bolb字段，网上查了查都说这样就可以了，在我实际使用过程中会发现会报错。
配置情况：
?1、在spring配置文件中添加如下配置：<!-- 用于处理大文本字段 -->
?? ?<bean id="nativeJdbcExtractor" />
?? ?<bean id="oracleLobHandler" lazy-init="true">
?? ? ?<property name="nativeJdbcExtractor"><ref bean="nativeJdbcExtractor" /></property>
?? ?</bean>
2、将oracleLobHfandler注入到sessionfactory中
???<bean id="sessionFactory"
ref="dataSource"></property>
<property name="lobHandler">
?? ? ? ? ? ?<ref bean="oracleLobHandler" />
?? ? ? ?</property>?
?? </bean>
3、在hibernate映射文件中配置如下：
<property name="articlecontent" type="org.springframework.orm.hibernate3.support.BlobByteArrayType"
?? ? ? ? ? ?column="article_content"
?? ? ? ? ? ?not-null="true"
?? ? ? ? ? ?unique="false">
?</property>
4、在model中定义字段如下：
?? ? private byte[] articlecontent;
如果你按照如上配置，会报错如下：
??java.lang.IllegalStateException: Active Spring transaction synchronization or active JTA transaction with specified [javax.transaction.TransactionManager] required
at org.springframework.jdbc.support.lob.LobCreatorUtils.registerTransactionSynchronization(LobCreatorUtils.java:79)
at org.springframework.orm.hibernate3.support.AbstractLobType.nullSafeSet(AbstractLobType.java:185)
at org.hibernate.type.CustomType.nullSafeSet(CustomType.java:145)
at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1826)
at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1803)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2059)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2427)
at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:51)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:139)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:297)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:985)
at org.springframework.orm.hibernate3.HibernateAccessor.flushIfNecessary(HibernateAccessor.java:390)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:374)
at org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:639)
at com.tyut.blog.dao.hibernate.BlogArticleDaoHibernate.saveArticle(BlogArticleDaoHibernate.java:12)
at com.tyut.blog.mgr.impl.BlogArticleImplMgr.saveArticle(BlogArticleImplMgr.java:22)
at com.tyut.blog.webapp.action.ArticleAction.save(ArticleAction.java:52)
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:585)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:170)
at org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)
at org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)
at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:743)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
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