spring3+hibernate4+struts2 ssh

package com.user.dao; import static org.hibernate.criterion.Restrictions.eq; import java.util.Collection; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import com.user.entity.User; @Repository("dao") public class UserDaoImpl implements UserDao { @Autowired private SessionFactory sessionFactory; public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } public Session getSession() { return sessionFactory.getCurrentSession(); } public Session getCurrentSession() { return sessionFactory.getCurrentSession(); } public void createOnly(Object obj) { getSession().save(obj); } public void AddUser(User obj) { getSession().save(obj); } public void updateOnly(Object obj) { getSession().update(obj); } public void update(Object obj) { getSession().update(obj); } public void saveOrUpdate(Object obj) { getSession().saveOrUpdate(obj); } public void saveOrUpdateAll(Collection<?> objs) { for (Object entity : objs) { getSession().saveOrUpdate(entity); } } public void delete(Object obj) { getSession().delete(obj); } public void deleteById(String id) { getSession().createQuery("delete from User where id='" + id + "'").executeUpdate(); } @Override public Object get(Class<?> clazz, Object id) { // TODO Auto-generated method stub return null; } @Override public void deleteAll(Collection<?> objs) { // TODO Auto-generated method stub } @Override public Object get(Class<?> clazz, String idName, Object idValue) { Criteria cri = getSession().createCriteria(clazz).add(eq(idName, idValue)); return cri.uniqueResult(); } }