框架移植后出现上传失败的问题

最近我从原先的webwork+hibernate框架中转到现在的webwork+hibernate+spring框架,当处理上传的时候我采用了原先的方法的来处理上传,
vm文件

<form action="souupload.action" method="post" enctype="multipart/form-data" name="uploadsource">
  文件名:<input name="fileName" type="text" class="btn_grey">
  <input type="hidden" name="id" value="$!req.getSession().getAttribute("customer").id">
  <input name="EDITFILE" type="file"  class="btn_grey">
  <input type="submit" name="Submit" value="上传文件" class="btn_grey">
  <input type="button" value=" 退 出 " class="btn_grey" onclick="javaScript:window.location.href='index.action';" >
</form>

上传Action中的代码如下:
FileUploadAction

	private int fileId=-1;
    private int id;
    private String fileName;
	private EricFileAware ericfileAware;
	
	public String execute()throws Exception{
		
		try {
			HttpServletRequest req = ServletActionContext.getRequest();
			MultiPartRequestWrapper wrapper = (MultiPartRequestWrapper) req;
			File doc = null;
			try {
				File[] docs = wrapper.getFiles("EDITFILE");
				System.out.println(docs.length);
				if (docs != null && docs.length > 0) {
					doc = docs[0];
					FileInputStream in = new FileInputStream(doc);
					Blob blob = Hibernate.createBlob(in);
					int fileSize = (int) doc.length();

					cn.kyvin.shop.webshop.object.EricFile ericFile=new cn.kyvin.shop.webshop.object.EricFile();
					if(this.fileId>0){
						
					}else{
						ericFile.setFileName(this.fileName);
						ericFile.setFileSize(new Integer(fileSize));
						ericFile.setFileData(blob);
						this.ericfileAware.insertFile(ericFile);
					}
				}
			} finally {
				doc.delete();
			}
			this.addActionMessage("^o^EricZone资源上传成功^o^");
			return SUCCESS;
		} catch (Exception e) {
			return INPUT;
		}

	}

FileAware接口中方法如下:

...
	public EricFile insertFile(EricFile file) throws ServicesException;

Fileimpl实现类中代码如下:
该实现类扩展了一下 HibernateDaoSupport 这个类中的方法

	public EricFile insertFile(EricFile file) throws ServicesException {
		try {
			Session session =this.getSession();
			Transaction tx = null;
			byte[] buffer = new byte[1];
			buffer[0] = 1;
			try {
				tx = session.beginTransaction();
				Blob blob = file.getFileData();
				file.setFileData(Hibernate.createBlob(buffer));
				session.save(file);
				session.flush();
				session.refresh(file, LockMode.UPGRADE);
				BLOB blobTemp = (BLOB) file.getFileData();
				OutputStream out = blobTemp.getBinaryOutputStream();
				InputStream in = blob.getBinaryStream();
				byte[] data = new byte[(int) in.available()];
				in.read(data);
				out.write(data);
				out.flush();
				in.close();
				out.close();
				session.flush();
				tx.commit();
			} catch (Exception he) {
				if (tx != null)
					tx.rollback();
			} finally {
				session.close();
			}
		} catch (HibernateException he) {
		}
		return file;
	}

通过这些程序我上传到oracle数据库中的时候会出现这个错误,当然hbm.xml文件肯定配置没问题
错误提示:

09:15:30,156 ERROR [http-8562-Processor23] SessionImpl:2400 - Could not synchronize database state with session
09:15:30,203 ERROR [http-8562-Processor23] JDBCTransaction:108 - Could not toggle autocommit
net.sf.hibernate.HibernateException: Session is closed

出现这样的问题该如何解决 我也想过通过this.getSessionFactory.openSession来打开session,可是一点用都没有

把事务处理交给spring来做试试

刚使用spring不久，我好像已经把事务都已经交给了spring来处理，在配置文件中有做配置，刚修改了下 但是总是在运行到 session.flush();
session.refresh(file, LockMode.UPGRADE);的时候会出现事务回滚掉 能贴出你想法的代码吗 谢谢了

我看你代码中有

tx = session.beginTransaction();

如果用spring配的事务，这些应该就不用了啊！

<tx:annotation-driven/>

	<aop:aspectj-autoproxy/>

	<aop:config proxy-target-class="true">
		<aop:advisor pointcut="execution(* org.service.*Manager.*(..))" advice-ref="txAdvice"/>
	</aop:config>

	<tx:advice id="txAdvice">
		<tx:attributes>
			<tx:method name="get*" read-only="true"/>
			<tx:method name="find*" read-only="true"/>
			<tx:method name="*"/>
		</tx:attributes>
	</tx:advice>

我是这样配的 看来真的得看看spring了 对你的配置有些许不懂

	<bean id="transactionManager" class="org.springframework.orm.hibernate.HibernateTransactionManager">
		<property name="sessionFactory">
			<ref local="sessionFactory" />
		</property>
	</bean>


	<bean id="baseTxProxy" lazy-init="true" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true">
		<property name="transactionManager">
			<ref bean="transactionManager" />
		</property>
		<property name="transactionAttributes">
			<props>
				<prop key="insert*">PROPAGATION_REQUIRED</prop>
				<prop key="update*">PROPAGATION_REQUIRED</prop>
				<prop key="delete*">PROPAGATION_REQUIRED</prop>
				<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
			</props>
		</property>
	</bean>	

同时我有尝试过把那段去掉 但是依旧出现类似的错误：

Session is closed; nested exception is net.sf.hibernate.HibernateException: Session is closed
net.sf.hibernate.HibernateException: Session is closed

我先尝试用你的试试^o^