pageslee.java

网上购物源代码

/**
 * 
 */
package com.chianaccpPage;

/**
 * @author Administrator
 *
 */
public class PagesLee {

	int dispage = 1;
	int RecordCount = 0;
	int RecordPageCount = 10;
	int Pages =0;
	int pos = 0;
	int num = 0;
	public int GetHead(int page,int size)
	{
		int h = 0;
		RecordCount = size;
		dispage = page;
		if(RecordCount/RecordPageCount==0||RecordCount%RecordPageCount==0)
		{
			Pages = RecordCount/RecordPageCount+1;
		}
		else
		{
			Pages = RecordCount/RecordPageCount+1;
		}
		if((dispage-1)*RecordPageCount==0)
		{
			pos = 0;
		}
		else
		{
			pos = (dispage-1)*RecordPageCount;
		}
		int count = dispage*RecordPageCount;
		if((count-RecordCount)>=0)
		{
			num = RecordCount;
		}
		else
			num = count;
		h=pos;
		
		return h;
	}
	public int GetTail(int page,int size)
	{
		int h = 0;
		RecordCount = size;
		dispage = page;
		if(RecordCount/RecordPageCount==0||RecordCount%RecordPageCount==0)
		{
			Pages = RecordCount/RecordPageCount;
		}
		else
		{
			Pages = RecordCount/RecordPageCount+1;
		}
		if((dispage-1)*RecordPageCount==0)
		{
			pos = 0;
		}
		else
		{
			pos = (dispage-1)*RecordPageCount;
		}
		int count = dispage*RecordPageCount;
		if((count-RecordCount)>=0)
		{
			num = RecordCount;
		}
		else
			num = count;
		h=num;
		
		return h;
	}
	
	public int GetTotal(int page,int size)
	{
		int h = 0;
		RecordCount = size;
		dispage = page;
		if(RecordCount/RecordPageCount==0||RecordCount%RecordPageCount==0)
		{
			Pages = RecordCount/RecordPageCount;
		}
		else
		{
			Pages = RecordCount/RecordPageCount+1;
		}
		if((dispage-1)*RecordPageCount==0)
		{
			pos = 0;
		}
		else
		{
			pos = (dispage-1)*RecordPageCount;
		}
		int count = dispage*RecordPageCount;
		if((count-RecordCount)>=0)
		{
			num = RecordCount;
		}
		else
			num = count;
		h=Pages;
		
		return h;
	}
}