viewlist.java

网上书店后台管理源码基于struts1.2+oracle数据库

package com.dongfang.action;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpSession;

public class ViewList {
	public void display(HttpSession session,List list,Integer pageId,String keyword)
	{
		int iPageId = 0;
		int pageCount = 0;
		int pageSize = 3;
		if(pageId!=null)
		{
			iPageId = pageId.intValue();
		}
		if(iPageId<0)
		{
			iPageId=0;
		}
		pageCount = (list.size()+pageSize-1)/pageSize;
		if(iPageId>=pageCount)
		{
			iPageId = pageCount - 1;
		}
		if((iPageId>=0)&&(list.size()>iPageId*pageSize))
		{
			List dispList = new ArrayList();
			for(int i= iPageId*pageSize;i<(iPageId+1)*pageSize;i++)
			{
				if(i<list.size())
				{
					dispList.add(list.get(i));
					//System.out.println(dispList);
				}
			}
			session.setAttribute("list", dispList);
			session.setAttribute("pageId", new Integer(iPageId));
			session.setAttribute("pageCount", new Integer(pageCount));
			session.setAttribute("keyword", keyword);
		}
	}
}