Good. Problems with Hibernate was the main reason for us to implement it
in the first place, and REDIRECT_TO_BUFFER (currently the default) is
more efficient.
Eelco
.
叶卫国 wrote:
>Eelco Hillenius,
>
> Yes... I use 'REDIRECT_TO_RENDER' strategy, I change it to
> 'REDIRECT_TO_BUFFER', it' ok
>
> :-)
>
>======= 2005-06-17 21:44:11 :=======
>
>
>
>>First, when you work with Hibernate, you should work with detachable
>>models. Any lazy loading reference you have with your hibernate objects,
>>needs an open hibernate session, while you should return (close) the
>>hibernate session after each request.
>>
>>And which render strategy do you use? The 'REDIRECT_TO_RENDER' strategy
>>(not the default anymore) could cause problems with Hibernate session,
>>as you might load an object in the action part of the request, and
>>render that object in the render part (which is a seperate request). See
>>also the javadocs in ApplicationSettings.
>>
>>Eelco
>>
>>
>>叶卫国 wrote:
>>
>>
>>
>>>Caused by: org.hibernate.LazyInitializationException: could not initialize
>>>proxy - the owning Session was closed
>>>
>>>
>>>I use wicket+spring+hibernate. this is the code snippet:
>>>
>>>public class NewsDAOHibernate extends HibernateDaoSupport implements NewsDAO
>>>{
>>>
>>> public void add(News news) {
>>> super.getHibernateTemplate().save(news);
>>> }
>>>
>>> public void update(News news) {
>>> super.getHibernateTemplate().update(news);
>>> }
>>>
>>> public void delete(News news) {
>>> super.getHibernateTemplate().delete(news);
>>> }
>>>
>>> public News fetch(Long newsId) {
>>> return (News) super.getHibernateTemplate().load(News.class, newsId);
>>> }
>>>
>>> public List findByAll() {
>>> String hsql = "from News";
>>> return super.getHibernateTemplate().find(hsql);
>>> }
>>>
>>> public List findByShop(Shop shop) {
>>> String hsql = "from News as news where news.shop = ?";
>>> return super.getHibernateTemplate().find(hsql, shop);
>>> }
>>>
>>>}
>>>
>>>
>>>
>>> 2005-06-17
>>>HS^甸?X??'????(疥????j亘?+kj?? ????"?^??Z0F??l糙?m~?j????"?+?b藉?片镀?j+xg?鳙守b?
>>>
>>>
>>êw??
>>z郓?)y?j?囤?l⑶gr?i?卷?∪?^?)?E?G?谦??x%?V? 峨 ???(悍 ~?zw????????玷??咤?l??)撸?"rG?谦
>>
>>
>>
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