Hi,
_userDao shouldn't be null if you annotate it in your applicationContext.xml
and grep it out of the ApplicationContext, e.g.
applicationContext.getBean("sessionDestroyedService");
otherwise spring would have already failed as it was not able to autowire
_userDao.
Best Regards,
Ilja Pavkovic
Am Donnerstag, 18. Februar 2010 12:52:46 schrieb Andreas Lüdtke:
> Ilja,
>
> thanks for your reply. If I create a service class like the one below, my
> _userDao object is always null. This _userDao works perfectly in other
> parts of my app. Do I need to inject the dao in a special way? I think the
> integration into spring is the problem, because I don't know where to
> place the corresponding part in the config/xml files. As I said, my
> knowledge of spring is limited.
>
> My class looks like this:
>
> @Service
> @Transactional
> public class SessionDestroyedService
> {
> @ Autowired
> private UserDao _userDao;
>
> public void forceLogout(String sessionId)
> {
> if (_userDao == null)
> System.out.println("SessionDestroyedService.forceLogout(): _userDao
> is NULL");
> else
> {
> System.out.println("SessionDestroyedService.forceLogout(): _userDao
> is OK");
> User user = _userDao.getBySessionId(sessionId);
> if (user != null)
> {
> // do the work here...
> }
> }
> }
> }
>
> Andreas
>
> > -----Original Message-----
> > From: Ilja Pavkovic [mailto:ilja.pavko...@binaere-bauten.de]
> > Sent: Wednesday, February 17, 2010 5:38 PM
> > To: users@wicket.apache.org
> > Subject: Re: best way to detect session termination
> >
> > Hi,
> >
> > create a service class marked with Annotation @Transactional
> > and manage it
> > with spring. Calls to this function will have get a session
> > from the spring
> > context.
> >
> > Spring will open a session before calling any function on
> > this service and
> > close the session afterwards.
> >
> > @Service
> > @Transactional
> > public class MyService {
> >
> > @Autowired
> > private MyDao dao;
> >
> > public destroySession(String sessionId) {
> >
> > myDao.deleteMySessionById(sessionId);
> >
> > }
> >
> > }
> >
> > Best Regards,
> >
> > Ilja Pavkovic
> >
> > Am Mittwoch, 17. Februar 2010 13:24:11 schrieb Andreas Lüdtke:
> > > Vineet,
> > >
> > > I'm now storing the session id in the user record. But now
> >
> > I have another
> >
> > > problem, because hibernate tells me now in sessionDestroy():
> > >
> > > org.hibernate.HibernateException: No Hibernate Session
> >
> > bound to thread, and
> >
> > > configuration does not allow creation of non-transactional one here
> > >
> > > I'm using spring to inject my dao. I also tried to use the dao in my
> > > HttpSessionListener which is configured in web.xml, but
> >
> > that prevents my
> >
> > > app from being started by Tomcat.
> > > Next I did was to create a manual created hibernate
> >
> > session, but that
> >
> > > raised other problems like a missing hibernate.hbm.xml file
> >
> > and I don't
> >
> > > want to configure that manually...
> > >
> > > Does somebody see another way to access my user data, or am I doing
> > > something stupid?
> > >
> > > Andreas
> > >
> > > > -----Original Message-----
> > > > From: vineet semwal [mailto:vineetsemwal1...@gmail.com]
> > > > Sent: Tuesday, February 16, 2010 2:15 PM
> > > > To: users@wicket.apache.org; sam.lued...@t-online.de
> > > > Subject: Re: best way to detect session termination
> > > >
> > > > can't you simply do that in
> > > > webapplication.sessiondestroy(String sessionid),
> > > >
> > > > you can store the sessionid when user logs in and on
> >
> > sessiondestroyed
> >
> > > > ,search the user by this sessionid ,
> > > > and change whatever in user object and then persist it..
> > > >
> > > > On Tue, Feb 16, 2010 at 6:23 PM, Andreas Lüdtke
> > > >
> > > > <sam.lued...@t-online.de>wrote:
> > > > > I studied the classes HttpSessionBindingListener and
> > > > > AbstractHttpSessionStore
> > > > > as you noted, but I think I'll still have no link between
> > > >
> > > > the SessionId
> > > >
> > > > > from
> > > > > the HTTPSession and my own Session. Maybe I'm missing
> > > >
> > > > something or "I don't
> > > >
> > > > > see the wood among all the trees" as we say in Germany...
> > > > >
> > > > > Andreas
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Eelco Hillenius [mailto:eelco.hillen...@gmail.com]
> > > > > > Sent: Monday, February 15, 2010 7:08 PM
> > > > > > To: sam.lued...@t-online.de
> > > > > > Cc: users@wicket.apache.org
> > > > > > Subject: Re: best way to detect session termination
> > > > > >
> > > > > > You could use a HttpSessionBindingListener like Wicket
> > > >
> > > > does internally
> > > >
> > > > > > (see AbstractHttpSessionStore). Or as a hack store
> > > >
> > > > references to the
> > > >
> > > > > > session objects in the session listener. That's the
> >
> > easy fix, but
> >
> > > > > > doesn't scale if you need session replication (unless
> > > >
> > > > maybe you use
> > > >
> > > > > > e.g. Terracotta).
> > > > > >
> > > > > > Eelco
> > > > > >
> > > > > > On Sun, Feb 14, 2010 at 4:36 AM, Andreas Lüdtke
> > > > > >
> > > > > > <sam.lued...@t-online.de> wrote:
> > > > > > > Hi Eelco,
> > > > > > >
> > > > > > > thanks for the hint. Now I can detect the end of a session.
> > > > > >
> > > > > > Unfortunately I
> > > > > >
> > > > > > > can't access my own wicket session in that
> > > > > >
> > > > > > sessionDestroyed() method in order
> > > > > >
> > > > > > > to get the info about the connected user. I've got ther
> > > > > >
> > > > > > error message
> > > > > >
> > > > > > > "java.lang.IllegalStateException: you can only locate or
> > > > > >
> > > > > > create sessions in
> > > > > >
> > > > > > > the context of a request cycle".
> > > > > > >
> > > > > > > Do you know how I can achieve this?
> > > > > > >
> > > > > > > Andreas
> > > > > > >
> > > > > > >> -----Original Message-----
> > > > > > >> From: Eelco Hillenius [mailto:eelco.hillen...@gmail.com]
> > > > > > >> Sent: Saturday, February 13, 2010 7:02 PM
> > > > > > >> To: users@wicket.apache.org; sam.lued...@t-online.de
> > > > > > >> Subject: Re: best way to detect session termination
> >
> > http://www.xyzws.com/Servletfaq/when-do-i-use-httpsessionlistener/7
> >
> > > > > > >> Eelco
> > > > > > >>
> > > > > > >> On Sat, Feb 13, 2010 at 8:38 AM, Andreas Lüdtke
> > > > > > >>
> > > > > > >> <sam.lued...@t-online.de> wrote:
> > > > > > >> > I would like to detect the termination of the
> > > >
> > > > session to set the
> > > >
> > > > > > >> > "lastAccesTime" in the user profile. This should also
> > > > > > >>
> > > > > > >> happen if the session
> > > > > > >>
> > > > > > >> > times out.
> > > > > > >> >
> > > > > > >> > I read in archive about a HttpSessionListener that should
> > > > > > >>
> > > > > > >> do the trick.
> > > > > > >>
> > > > > > >> > Unfortunately I can't find a place to install it.
> > > > > > >> >
> > > > > > >> > Thanks
> > > > > > >> >
> > > > > > >> > Andreas
> >
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> >
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