areaboimpl.java

一个bbs论坛系统

package com.lovo.bo;

import java.sql.SQLException;
import java.util.List;

import com.lovo.dao.AreaDAO;
import com.lovo.factory.DAOFactory;
import com.lovo.po.AreaPO;

public class AreaBOImpl implements AreaBO{
	AreaDAO areaDAO=DAOFactory.getAreaDAOInstance();
	public boolean addArea(AreaPO po){
		try {
			areaDAO.insert(po);
			return true;
		} catch (SQLException e) {
			e.printStackTrace();
			return false;
		}
	}

	public boolean delete(int id) {
		try {
			areaDAO.delete(id);
			return true;
		} catch (SQLException e) {
			e.printStackTrace();
			return false;
		}
	}

	public boolean modify(AreaPO po) {
		try {
			areaDAO.update(po);
			return true;
		} catch (SQLException e) {
			e.printStackTrace();
			return false;
		}
	
	}

	public List<AreaPO> queryArea() {
		List<AreaPO> list=null;
		try {
			list=areaDAO.queryArea();
			
		} catch (SQLException e) {
			e.printStackTrace();
			
		}
		return list;
	}

	public AreaPO queryAreaById(int id) {
		AreaPO areaPO=null;
		try {
			areaPO=areaDAO.queryById(id);
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return areaPO;
	}
	
}