ssh报错

Question

在项目中和数据库中表映射的 *.hbm.xml 
<hibernate-mapping>
    <class lazy="false"> 在<class>元素中添加lazy="false" 
</class>
<hibernate-mapping>

Answer 1

先贴段hibernate源码 明天继续研究public Object execute(HibernateCallback action, boolean exposeNativeSession) throws DataAccessException {    
        Assert.notNull(action, "Callback object must not be null");    
   
        Session session = getSession();    
        boolean existingTransaction = SessionFactoryUtils.isSessionTransactional(session, getSessionFactory());    
        if (existingTransaction) {    
            logger.debug("Found thread-bound Session for HibernateTemplate");    
        }    
   
        FlushMode previousFlushMode = null;    
        try {    
            previousFlushMode = applyFlushMode(session, existingTransaction);    
            enableFilters(session);    
            Session sessionToExpose = (exposeNativeSession ? session : createSessionProxy(session));    
            Object result = action.doInHibernate(sessionToExpose);          flushIfNecessary(session, existingTransaction);    
            return result;    
        }    
        catch (HibernateException ex) {    
            throw convertHibernateAccessException(ex);    
        }    
        catch (SQLException ex) {    
            throw convertJdbcAccessException(ex);    
        }    
        catch (RuntimeException ex) {    
            // Callback code threw application exception...    
            throw ex;    
        }    
        finally {    
            if (existingTransaction) { //你错误出现信息地方                logger.debug("Not closing pre-bound Hibernate Session after HibernateTemplate");    
                disableFilters(session);    
                if (previousFlushMode != null) {    
                    session.setFlushMode(previousFlushMode);    
                }    
            }    
            else {    
                // Never use deferred close for an explicitly new Session.    
                if (isAlwaysUseNewSession()) {    
                    SessionFactoryUtils.closeSession(session);    
                }    
                else {    
                    SessionFactoryUtils.closeSessionOrRegisterDeferredClose(session, getSessionFactory());    
                }    
            }    
        }    
    }