package com.publish.shop.bulletin.javabeans;import java.sql.Connection;import java.util.ArrayList;import com.publish.shop.util.javabeans.*;import com.publish.shop.bulletin.dao.BulletinDAO;public class BulletinProxy {  BulletinDAO dao = null;  public BulletinProxy(){    dao = new BulletinDAO();  }  public ArrayList queryBulletin(BulletinModel model,Pager pager) throws Exception{    ArrayList lList = new ArrayList();    lList = dao.query(model);    return Utility.generatePager(lList,pager);  }  public ArrayList queryBulletin(BulletinModel model) throws Exception{    return dao.query(model);  }  public BulletinModel queryBulletinById(int bulletinId) throws Exception{     return dao.queryBulletin(bulletinId);  }  public void insertBulletin(BulletinModel model) throws Exception{      dao.insert(model);  }  public void updateBulletin(BulletinModel model) throws Exception{      dao.update(model);  }  public void deleteBulletin(String bulletinId) throws Exception{      dao.delete(bulletinId);  }}