hibernate增删查改

1 OpenAction.java

/**//*
*GeneratedbyMyEclipseStruts
*Templatepath:templates/java/JavaClass.vtl
*/
packageorg.zhb.struts.action;

importjava.lang.reflect.InvocationTargetException;
importjava.util.ArrayList;

importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;

importorg.apache.commons.beanutils.BeanUtils;
importorg.apache.struts.action.ActionForm;
importorg.apache.struts.action.ActionForward;
importorg.apache.struts.action.ActionMapping;
importorg.apache.struts.action.DynaActionForm;
importorg.apache.struts.actions.DispatchAction;
importorg.hibernate.Session;
importorg.hibernate.Transaction;

importutil.BaseHibernateDAO;
importutil.HibernateSessionFactory;
importutil.Student;
importutil.StudentDAO;

/***//**
*MyEclipseStruts
*Creationdate:05-29-2007
*
*XDocletdefinition:
*@struts.actionvalidate="true"
*/
publicclassOpenActionextendsDispatchAction...{
/**//*
*GeneratedMethods
*/

/***//**
*Methodexecute
*@parammapping
*@paramform
*@paramrequest
*@paramresponse
*@returnActionForward
*/
publicActionForwardinsert(ActionMappingmapping,ActionFormform,
HttpServletRequestrequest,HttpServletResponseresponse)...{
DynaActionFormoperationForm=(DynaActionForm)form;
Studentstu=newStudent();
try...{
BeanUtils.copyProperties(stu,operationForm);
BaseHibernateDAObao=newBaseHibernateDAO();
Sessionsession=bao.getSession();
Transactiontr=session.beginTransaction();
StudentDAOdao=newStudentDAO();
dao.save(stu);
tr.commit();
session.close();
}catch(IllegalAccessExceptione)...{
e.printStackTrace();
}catch(InvocationTargetExceptione)...{
e.printStackTrace();
}
returnmapping.findForward("find");
}
publicActionForwardfind(ActionMappingmapping,ActionFormform,
HttpServletRequestrequest,HttpServletResponseresponse)...{
StudentDAOdao=newStudentDAO();
ArrayListlist=dao.findAll();
request.setAttribute("list",list);
returnmapping.findForward("display");
}


publicActionForwarddelete(ActionMappingmapping,ActionFormform,
HttpServletRequestrequest,HttpServletResponseresponse)...{
DynaActionFormoperationForm=(DynaActionForm)form;
Longid=(Long)operationForm.get("id");
Sessionsession=HibernateSessionFactory.getSession();
Transactiontr=session.beginTransaction();
StudentDAOdao=newStudentDAO();
dao.deleteById(id);
tr.commit();
session.close();
returnmapping.findForward("find");
}


publicActionForwardmodify(ActionMappingmapping,ActionFormform,
HttpServletRequestrequest,HttpServletResponseresponse)...{
DynaActionFormoperationForm=(DynaActionForm)form;
Studentstu=newStudent();
try...{
BeanUtils.copyProperties(stu,operationForm);
BaseHibernateDAObao=newBaseHibernateDAO();
Sessionsession=bao.getSession();
Transactiontr=session.beginTransaction();
StudentDAOdao=newStudentDAO();
dao.modifybyID(stu);
tr.commit();
session.close();
}catch(IllegalAccessExceptione)...{
e.printStackTrace();
}catch(InvocationTargetExceptione)...{
e.printStackTrace();
}
returnmapping.findForward("find");
}

}

2 BaseHibernateDAO.java

packageutil;

importorg.hibernate.Session;


/***//**
*Dataaccessobject(DAO)fordomainmodel
*@authorMyEclipse-HibernateTools
*/
publicclassBaseHibernateDAOimplementsIBaseHibernateDAO...{

publicSessiongetSession()...{
returnHibernateSessionFactory.getSession();
}

}

3 HibernateSessionFactory.java

packageutil;

importorg.hibernate.HibernateException;
importorg.hibernate.Session;
importorg.hibernate.cfg.Configuration;

/***//**
*ConfiguresandprovidesaccesstoHibernatesessions,tiedtothe
*currentthreadofexecution.FollowstheThreadLocalSession
*pattern,see{@linkhttp://hibernate.org/42.html}.
*/
publicclassHibernateSessionFactory...{

/***//**
*Locationofhibernate.cfg.xmlfile.
*LocationshouldbeontheclasspathasHibernateuses
*#resourceAsStreamstylelookupforitsconfigurationfile.
*Thedefaultclasspathlocationofthehibernateconfigfileis
*inthedefaultpackage.Use#setConfigFile()toupdate
*thelocationoftheconfigurationfileforthecurrentsession.
*/
privatestaticStringCONFIG_FILE_LOCATION="/hibernate.cfg.xml";
privatestaticfinalThreadLocal<Session>threadLocal=newThreadLocal<Session>();
privatestaticConfigurationconfiguration=newConfiguration();
privatestaticorg.hibernate.SessionFactorysessionFactory;
privatestaticStringconfigFile=CONFIG_FILE_LOCATION;

privateHibernateSessionFactory()...{
}

/***//**
*ReturnstheThreadLocalSessioninstance.Lazyinitialize
*the<code>SessionFactory</code>ifneeded.
*
*@returnSession
*@throwsHibernateException
*/
publicstaticSessiongetSession()throwsHibernateException...{
Sessionsession=(Session)threadLocal.get();

if(session==null||!session.isOpen())...{
if(sessionFactory==null)...{
rebuildSessionFactory();
}
session=(sessionFactory!=null)?sessionFactory.openSession()
:null;
threadLocal.set(session);
}

returnsession;
}

/***//**
*Rebuildhibernatesessionfactory
*
*/
publicstaticvoidrebuildSessionFactory()...{
try...{
configuration.configure(configFile);
sessionFactory=configuration.buildSessionFactory();
}catch(Exceptione)...{
System.err
.println("%%%%ErrorCreatingSessionFactory%%%%");
e.printStackTrace();
}
}

/***//**
*Closethesinglehibernatesessioninstance.
*
*@throwsHibernateException
*/
publicstaticvoidcloseSession()throwsHibernateException...{
Sessionsession=(Session)threadLocal.get();
threadLocal.set(null);

if(session!=null)...{
session.close();
}
}

/***//**
*returnsessionfactory
*
*/
publicstaticorg.hibernate.SessionFactorygetSessionFactory()...{
returnsessionFactory;
}

/***//**
*returnsessionfactory
*
*sessionfactorywillberebuildedinthenextcall
*/
publicstaticvoidsetConfigFile(StringconfigFile)...{
HibernateSessionFactory.configFile=configFile;
sessionFactory=null;
}

/***//**
*returnhibernateconfiguration
*
*/
publicstaticConfigurationgetConfiguration()...{
returnconfiguration;
}