分页实现步骤：
1. 将Page类引入。需要自己修改的可自行修改。
package com.puckasoft.video.util;
public class Page {
private int num; //当前页号, 采用自然数计数 1,2,3,...
private int size; //页面大小:一个页面显示多少个数据
private int rowCount;//数据总数：一共有多少个数据
private int pageCount; // 页面总数
private int startRow;//当前页面开始行, 第一行是0行
private int first = 1;//第一页 页号
private int last;//最后页 页号
private int next;//下一页 页号
private int prev;//前页 页号
private int start;//页号式导航, 起始页号
private int end;//页号式导航, 结束页号
private int numCount = 10;//页号式导航, 最多显示页号数量为numCount+1;这里显示11页。
public Page(int size, String str_num, int rowCount) {

int num = 1;
if (str_num != null) {
num = Integer.parseInt(str_num);
}
this.num = num;
this.size=size;
this.rowCount = rowCount;
this.pageCount = (int) Math.ceil((double)rowCount/size);

this.num = Math.min(this.num, pageCount);
this.num = Math.max(1, this.num);

this.startRow = (this.num-1) * size ;
this.last = this.pageCount;
this.next = Math.min( this.pageCount, this.num+1);
this.prev = Math.max(1 , this.num-1);

//计算page 控制
start = Math.max(this.num-numCount/2, first);
end = Math.min(start+numCount, last);
if(end-start < numCount){
start = Math.max(end-numCount, 1);
}

}

// 为了节省篇幅，get,set方法省略。

}

2. 引入fenye.jsp / pagination.jsp文件：
<%@ page language="java" contentType="text/html; charset=GBK" pageEncoding="GBK"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>






<%
String url4page = request.getParameter("url4page").trim();
url4page = (url4page.indexOf("?")==-1)?url4page+"?num=":url4page+"&num=";
%>


首页   
前一页   


首页   
前一页   





[${i}]
  


[${i}]   





后一页   
末页   


末页   
后一页   


共${page.pageCount}页





3. 在相应servlet/jsp 里面，将需要显示的记录放到list里面，并将list放到request或者session里面：相应servlet写法如下：
<%@ page language="java" import="java.util.*" pageEncoding="GBK" %>
<%@ page import="com.puckasoft.video.dao.*,com.puckasoft.video.vo.*,com.puckasoft.video.util.*" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>














<%
//处理总记录数
int rowCount = VideoDao.countAllVideos();

//将Page类放入作用域，以便在jsp页面中显示
Page p1 = new Page(10, request.getParameter("num"), rowCount);
request.setAttribute("page", p1);

//将视频信息放入作用域，以便在页面中显示
List list = VideoDao.listAllVideos(p1.getStartRow(), p1.getSize());
request.setAttribute("vList", list);
%>

将会列出所有的视频

${video.name}

视频标签：${video.label }

视频描述：${video.description }

点击量：${video.count }

作者：${video.userName}

上传时间：${video.createTime}










4. 数据库中查询数据：
public static List listAllVideos(int startRow,int size) {
Connection conn=null;
PreparedStatement ps=null;
String sql = "select video.id,vpath,name,label,count,description,userName,video.createTime from video join user on user.id=video.userId order by createTime desc limit ?,? ";
ResultSet rs = null;
List list = new ArrayList();
try {
conn= DBConn.getConnection();
ps = conn.prepareStatement(sql);
ps.setInt(1, startRow);
ps.setInt(2, size);
rs = ps.executeQuery();

while(rs.next()){
com.puckasoft.video.vo.Video video = new com.puckasoft.video.vo.Video(rs.getInt("id"),rs.getString("vpath"),
rs.getString("name"),rs.getString("label"),rs.getString("description"),
rs.getString("userName"),rs.getInt("count"),rs.getTimestamp("createTime"));

list.add(video);
}

} catch (SQLException e) {
e.printStackTrace();
}finally {
DBConn.close(ps, conn);
}

return list;
}

public static int countAllVideos(){
Connection conn=null;
PreparedStatement ps=null;
String sql = "select count(*) from video";
ResultSet rs = null;
int count=0;
try {
conn= DBConn.getConnection();
ps = conn.prepareStatement(sql);
rs = ps.executeQuery();

while(rs.next()){
count=rs.getInt(1);
}

} catch (SQLException e) {
e.printStackTrace();
}finally {
DBConn.close(ps, conn);
}

return count;
}