columntservice.java

在线信息发布系统。在Eclipse下进行开发结合了struts等主流技术

package service;

import java.util.*;

import po.column.*;
import po.news.Newst;
import po.news.NewstDAO;
import hibernate.*;
import org.hibernate.*;

import org.hibernate.HibernateException;

public class ColumntService {
	
	public static Columnt getColumnContent(Integer columntId)
	{
		ColumntDAO dao = new ColumntDAO();
		
		try{
			Columnt column=dao.findById(columntId);
			
			return column;
			
		}catch(HibernateException e){
			return null;
		}finally{
			try  { 
		        dao.getSession().close();
		      } catch  (Exception e) { 
		      }
		}
	}
	
	public static List columnList()
	{
		ColumntDAO dao = new ColumntDAO();
		
		try{
			Session session=dao.getSession();
			Transaction tx=session.beginTransaction();
			Query query=session.createQuery("from Columnt");
			List list=query.list();	
			tx.commit();				
			return list;
			
		}catch(HibernateException e){
			return null;
		}finally{
			try  { 
		        dao.getSession().close();
		      } catch  (Exception e) { 
		      }
		}
	}

}