List<House> houseList = houseManager.pageQueryHouse(pageIndex,pageSize);
request.setAttribute("houses", houseList);
// System.out.println(houses.get(1).getName());
request.getRequestDispatcher("page/search_list.jsp").forward(request, response);
select * from ( select house0_.ID as ID3_, house0_.NAME as NAME3_, house0_.USERS_ID as USERS3_3_, house0_.TYPE_ID as TYPE4_3_ from HOUSES house0_ ) where rownum <= ?
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
int pageSize=5; //页面的显示条数
int pageIndex; //当前页面
int totalrow=3; //得到总计录数
int totalPage=(totalrow%pageSize==0)?(totalrow/pageSize):(totalrow/pageSize)+1; //总页数
String current=request.getParameter("pageIndex"); //获得当前页
if(current==null||"".equals(current) )
{
pageIndex=1;
}
else{
try{
pageIndex=Integer.parseInt(current) ;
}catch(Exception e)
{
pageIndex=1;
}
}
//当前页小于零，当前也为第一页
if(pageIndex<=0)
{
pageIndex=1;
}
//当前页大于总页数，当前也就为最后一页
if(pageIndex >= totalPage)
{
pageIndex=totalPage;
}
List<House> houseList = houseManager.pageQueryHouse(pageIndex,pageSize);
request.setAttribute("houses", houseList);
// System.out.println(houses.get(1).getName());
request.getRequestDispatcher("page/search_list.jsp").forward(request, response);
我用分页不是把页号作为数据记录的一项，是把数据取出来然后根据每页显示的条数计算出来有多少页，我的方法参考下吧，不知道是不是你想要的结果：
Java code
ListAction.java
package com.sy.action;
import java.util.List;
import com.opensymphony.xwork2.ActionSupport;
import com.sy.dao.AdminDao;
import com.sy.dao.NewsDao;
import com.sy.dao.impl.AdminDaoImpl;
import com.sy.dao.impl.NewsDaoImpl;
import com.sy.vo.Admin;
import com.sy.vo.News;
public class ListAction extends ActionSupport {
private static final long serialVersionUID = 1L;
int i=1;//中间变量
private int k;//储存最大页面数
private int pageNow=1; //页码数,初始为1
private int pageSize = 5 ; //页面行数
private int intRowCount;//总行数
private int intPageCount;//总页数
private Admin admin;
private List<Admin> Adminss;
private News news;
@SuppressWarnings("unchecked")
private List<News> Newss;
private int id;
private int aid;
public News getNews() {
return news;
}
public void setNews(News news) {
this.news = news;
}
@SuppressWarnings("unchecked")
public List<News> getNewss() {
return Newss;
}
public void setNewss(List<News> newss) {
Newss = newss;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public Admin getAdmin() {
return admin;
}
public void setAdmin(Admin admin) {
this.admin = admin;
}
public List<Admin> getAdminss() {
return Adminss;
}
public void setAdminss(List<Admin> adminss) {
Adminss = adminss;
}
public int getAid() {
return aid;
}
public void setAid(int aid) {
this.aid = aid;
}
public int getPageNow() {
return pageNow;
}
public void setPageNow(int pageNow) {
this.pageNow = pageNow;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public int getIntRowCount() {
return intRowCount;
}
public void setIntRowCount(int intRowCount) {
this.intRowCount = intRowCount;
}
public int getIntPageCount() {
return intPageCount;
}
public void setIntPageCount(int intPageCount) {
this.intPageCount = intPageCount;
}
public int getK() {
return k;
}
public void setK(int k) {
this.k = k;
}
@SuppressWarnings("unchecked")
@Override
//显示新闻列表
public String execute() throws Exception {
NewsDao npage=new NewsDaoImpl();
intRowCount=npage.count();
k=(intRowCount + pageSize - 1) / pageSize;
intPageCount = (intRowCount + pageSize - 1) / pageSize;//计算出总页数
if(pageNow<1){
pageNow=1;
}
if(pageNow > intPageCount)
pageNow=intPageCount;
i = (pageNow -1)*pageSize;
NewsDao nlist=new NewsDaoImpl();
if(null!=nlist.queryByPage(i,pageSize)){
Newss = nlist.queryByPage(i,pageSize);
return SUCCESS;
}else{
return "failure";
}
}
..
}
listNews.jsp
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
..
<center>
共<s:property value="intRowCount"/>记录
第<s:property value="pageNow"/>页
<s:url id="url_pre" value="list.action">
<s:param name="pageNow" value="pageNow-1"></s:param>
</s:url>
<s:url id="url_next" value="list.action">
<s:param name="pageNow" value="pageNow+1"></s:param>
</s:url>
<s:iterator value="Newss" status="status">
<s:url id="url" value="list.action">
<s:param name="pageNow" value="pageNow"/>
</s:url>
</s:iterator>
<s:if test="pageNow==1">
<s:a href="%{url_pre}">最前一页</s:a>
</s:if>
<s:else>
<s:a href="%{url_pre}">上一页</s:a>
</s:else>
<s:if test="pageNow==k">
<s:a href="%{url_next}">最后一页</s:a>
</s:if>
<s:else>
<s:a href="%{url_next}">下一页</s:a>
</s:else>
</center>
</body>
</html>
NewsDao.java
package com.sy.dao.impl;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import com.sy.dao.NewsDao;
import com.sy.util.DataBaseConnection;
import com.sy.util.StringUtil;
import com.sy.vo.News;
public class NewsDaoImpl implements NewsDao {
//获取分页新闻列表
@SuppressWarnings("unchecked")
public List<News> queryByPage(int i,int pageSize){
List<News> newss=new ArrayList();
PreparedStatement pstmt = null ;
String sql = null ;
ResultSet rs = null ;
DataBaseConnection dbc = null ;
dbc = new DataBaseConnection() ;
sql = "select * from struts2new order by id asc limit " + i + "," + pageSize;
try
{
pstmt = dbc.getConnection().prepareStatement(sql);
rs = pstmt.executeQuery() ;
while(rs.next())
{
News news=new News();
news.setId(rs.getInt("id"));
news.setName(rs.getString("name"));
news.setTitle(rs.getString("title"));
news.setDate(rs.getString("date"));
news.setEmail(rs.getString("email"));
news.setContent(rs.getString("content"));
i++;
newss.add(news);
}
rs.close() ;
pstmt.close() ;
}
catch(Exception e)
{
System.out.println(e) ;
}
finally
{
dbc.close();
}
return newss;
}
//查询总行数
public int count() {
int intRowCount = 0;//总行数
PreparedStatement pstmt = null ;
String sql = null ;
ResultSet rs = null ;
DataBaseConnection dbc = null ;
dbc = new DataBaseConnection() ;
sql = "select count(id) from struts2new order by id asc";
try
{
pstmt = dbc.getConnection().prepareStatement(sql);
rs = pstmt.executeQuery();
rs.next();//游标指向第一行
intRowCount=rs.getInt(1);//取得总行数
rs.close() ;
pstmt.close() ;
}
catch(Exception e)
{
System.out.println(e) ;
}
finally
{
dbc.close();
}
return intRowCount;
}
}
public List<House> pageQuery(int pageIndex,int pageSize){
List<House> houseList = null;
Session s = HibernateUtil.getSession();
Query query = s.createQuery("from House");
//第一条记录的位置
query.setFirstResult((pageIndex-1)*pageSize);
query.setMaxResults(pageSize);
houseList = query.list();
return houseList;
public class House {
private int id;
private String name;
private User userId;
private Type typeId;
//省略get,set
}
