jdbc分页

[java]代码库

package cn.itcast.customer.domain;

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

/*
 * 代表分页显示的每一页
 */
public class Page {
	//集合，代表该页显式的记录
	//查询数据库得到:select *  from *** limit M,N
	//findCustomerByPage
	private List list = new ArrayList();

	//总记录数
	//查询数据库: findAllCustomerCount
	private int totalCount;

	//总页码
	//总页码通过计算总记录数和页面大小得到
	private int totalPage;

	//当前页码---> 第几页
	//从JSP页面得到
	private int currentPage;

	//页面大小
	//定义常量
	private int pageSize;

	//当前页面的起始记录数
	//当前页面的起始记录数=(当前页码-1)*页面大小+1
	private int startIndex;
	
	//定义一个URL --> 目的：可以对任意的集合实现分页
	private String url;
	
	public Page(int pageNO,int pageSize){
		this.currentPage = pageNO;
		this.pageSize = pageSize;
		
		//计算该页的起始记录数 ---> M
		this.startIndex = (this.currentPage-1)*this.pageSize+1;
	}
	
	public String getUrl() {
		return url;
	}

	public void setUrl(String url) {
		this.url = url;
	}



	public List getList() {
		return list;
	}

	public void setList(List list) {
		this.list = list;
	}

	public int getTotalCount() {
		return totalCount;
	}

	public void setTotalCount(int totalCount) {
		this.totalCount = totalCount;
	}

	public int getTotalPage() {
		//总页码通过计算总记录数和页面大小得到
		int mod = this.totalCount % this.pageSize;
		if(mod == 0){
			this.totalPage = this.totalCount/this.pageSize;
		}else{
			this.totalPage = this.totalCount/this.pageSize + 1;
		}
		
		return totalPage;
	}

	public void setTotalPage(int totalPage) {
		this.totalPage = totalPage;
	}

	public int getCurrentPage() {
		return currentPage;
	}

	public void setCurrentPage(int currentPage) {
		this.currentPage = currentPage;
	}

	public int getPageSize() {
		return pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	public int getStartIndex() {
		return startIndex;
	}

	public void setStartIndex(int startIndex) {
		this.startIndex = startIndex;
	}
	
	
}