I use struts to get a actionFormBean from an Html Formular, and when i try to save this bean using sess.save(actionFormBean); I get an exception
net.sf.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save()
I store all of fields(whith identifers) in this html fomular, so i thinks that they are assigned manually .
Thinks in advance.

Double check, your actionFormBean.getId() probably returns null or 0 and thus is not set by struts.