departmentsdaohibernate.java

这是本人曾经在公司里用的,内部开发框架,基于struts+hibernate今天分享给大家

/**
 * 
 */
package cn.bway.admin.dept.dao;

import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.criterion.Example;
import org.hibernate.criterion.Expression;
import org.hibernate.criterion.Order;

import cn.bway.admin.dept.model.Departments;
import cn.bway.common.BwayHibernateException;
import cn.bway.common.DataBaseUtils;
import cn.bway.common.Util;
import cn.bway.common.dao.BaseDAOHibernate;
import cn.bway.common.vo.PageListVO;
import cn.bway.common.vo.QueryVO;

/**
 * @author Kson
 *
 */
public class DepartmentsDAOHibernate extends BaseDAOHibernate implements
		DepartmentsDAO {

	/* (non-Javadoc)
	 * @see cn.bway.admin.dept.dao.DepartmentsDAO#findAllDepartments(cn.bway.common.vo.QueryVO)
	 */
	public Object findAllDepartments(QueryVO qvo) throws BwayHibernateException {
		// TODO Auto-generated method stub
		PageListVO rvo=new PageListVO();
		rvo.setRealPage(qvo.getCurPage());
		rvo.setPageSize(qvo.getPageSize());
		ArrayList list=new ArrayList();
		Statement stmt  =null;
	 	ResultSet rs  =null;
	 	String sql=DataBaseUtils.getMySQLLimitString("select * from departments ",qvo.getCurPage()-1,qvo.getPageSize());
	 	try{
			stmt = currentSession().connection().createStatement();
			rs = stmt.executeQuery(sql);
			Departments p=null;
        	while(rs.next()) {
        		p=new Departments();  
            	p.setId(String.valueOf(rs.getInt("id")));
//            	p.setStorename(rs.getString("storename"));
            	list.add(p);
			}
        	rs =stmt.executeQuery("select count(*) from departments");
        	rs.next();
        	rvo.setTotalItems(rs.getInt(1));
            rvo.setretVO(list);
    	}catch(HibernateException he){
    		log.error(this.getClass().getName()+".findAllDepartments(QueryVO qvo)"+he);
    		throw new BwayHibernateException(he.getMessage());
    	}catch (Exception e) {
    		log.error(this.getClass().getName()+".findAllDepartments(QueryVO qvo)"+e);
    		throw new BwayHibernateException(e.getMessage());
		}finally{
    		close(stmt,rs);
    		closeSession();
    	}
       return rvo;
	}

	/* (non-Javadoc)
	 * @see cn.bway.admin.dept.dao.DepartmentsDAO#findAllDepartments1(cn.bway.common.vo.QueryVO)
	 */
	public Object findAllDepartments1(QueryVO qvo)
			throws BwayHibernateException {
		// TODO Auto-generated method stub
		PageListVO rvo=new PageListVO();
		Departments e =new Departments();
		rvo.setRealPage(qvo.getCurPage());
		rvo.setPageSize(qvo.getPageSize());
		List list=null;
		session=currentSession();
		try {
	    	Criteria criteria=session.createCriteria(Departments.class);
	    	
	    	Map map = Util.scatterMap(qvo.getScatterMap());
	    	String deptname = "";
	    	if(map.isEmpty()){}
	    	else{
	    		if(map.get("deptname") != null && !"".equals(map.get("deptname"))){
	    			deptname = map.get("deptname").toString();
	        	}
	    	}
	    	
	    	rvo.setTotalItems(
	    			criteria.add(Example.create(e))
	    			.add(Expression.like("deptname", "%"+ deptname.trim() +"%"))
	    			.list().size()
	    			);
	    	
	    	criteria.setFirstResult(qvo.getFirstItem());
	    	criteria.setMaxResults(qvo.getPageSize());
	    	
	    	list=criteria.add(Example.create(e))
			.add(Expression.like("deptname", "%"+ deptname.trim() +"%"))
			.addOrder(Order.desc("id"))
			.list();
	    	
	    	rvo.setretVO(list);
		} catch (Exception ex)	{
			ex.printStackTrace();
			log.error(this.getClass().getName()+".updateObject(Object obj)"+ex);
		}finally{
			closeSession();
		}
    	return rvo;
	}

}