fenye.java

新闻管理系统实现对新闻添加修改删除外挂了一个用户的注册还有一个外挂的投票

package com.vsked.models;

import java.util.ArrayList;

public class Fenye {
	private static  int nowpage;//当前页
	private static  int pagesize;//一页显示行数
	private static  int pagecount;//总页数;
	private static  ArrayList al;//分页后的数据
	private static  int startindex;//开始索引
	private static  int endindex;//结束索引
	
	
	public  static ArrayList Fenyeh(ArrayList als,int nowpagein,int pagesizein){
		al=new ArrayList();
//		System.out.println("size:"+als.size());
		nowpage=nowpagein;
		pagesize=pagesizein;
		startindex=(nowpage-1)*pagesize;
		endindex=nowpage*pagesize-1;
		pagecount=als.size()%pagesize==0?als.size()/pagesize:als.size()/pagesize+1;
		if(nowpage<=1){
			nowpage=1;
		}
		if(nowpage>=pagecount){
			nowpage=pagecount;
			endindex=als.size()-1;
		}
		
//		System.out.println("nowpage:"+nowpage+" pagesize:"+pagesize+" pageCount"+pagecount+" start:"+startindex+" end"+endindex);
		
		for(int i=startindex;i<=endindex;i++){
			al.add(als.get(i));			
		}
		return al;		
	}
		
	
}