struts分页

//下面是我从自己写以前写的例子中截取出来的代码希望对楼主有帮助
/**分页实体类**/
package com.pagination;
import java.util.List;
public class Pagination {
/**
* 总页数
*/
private int totalityPage;
/**
* 页面大小
*/
private int pageSize=5;//默认为5条可以在 XML 文件里配置页面大小方便维护
/**
* 数据集合
*/
private List data;
/**
* 当前页
*/
private int currentlyPage=1;
/**
* 总共记录
*/
private int allRegister;
public int getAllRegister() {
return allRegister;
}
public void setAllRegister(int allRegister) {
this.allRegister = allRegister;
}
public int getCurrentlyPage() {
return currentlyPage;
}
public void setCurrentlyPage(int currentlyPage) {
this.currentlyPage = currentlyPage;
}
public List getData() {
return data;
}
public void setData(List data) {
this.data = data;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public int getTotalityPage() {
return totalityPage;
}
public void setTotalityPage(int totalityPage) {
this.totalityPage = totalityPage;
}
}
====================================================================
/*DAO 要写两个方法一个用与获得分页数据另一个用于获得总页数*/
  下面的两个方法是用 hibernate dao的如果你不用hibernate 可以自己稍加改动就可以了
/**
*获得数据集合   参数currentlyPage: 代表当前页；参数pageSize：代表页面大小 */
public List findAll(int currentlyPage ,int pageSize) {
log.debug("finding all Employee instances");
if(pageSize == 0){
pageSize = 5;//如果页面面大小为空设置五 5
}
if(currentlyPage<1){   //当前页下页第一页
currentlyPage = 1;//让当前页等于第一页
}
int totality = this.getTotalityPage(pageSize);//获得总页数
if(currentlyPage >totality){     //当前页大于最后一页
currentlyPage = totality; //让当前页等于最后一页
}
currentlyPage=(currentlyPage-1)*5;//计算当前数据为第几行
try {
String queryString = "from Employee";
Query queryObject = getSession().createQuer(queryString);
queryObject.setFirstResult(currentlyPage);//设置从第几行取数据
queryObject.setMaxResults(pageSize);//设置页面大小
return queryObject.list();//获得数据集
} catch (RuntimeException re) {
log.error("find all failed", re);
throw re;
}
}
//获得总页数参数 pageSize 为页面大小
public int getTotalityPage(int pageSize){
if(pageSize == 0){
pageSize = 5;
}
log.debug("finding all Employee instances");
try {
String queryString = "select count(*) from Employee";
Query query = getSession().createQuery(queryString);
List list =query.list();
Object obj = (Object) list.get(0);//获得总记录数
int curr = Integer.parseInt(obj.toString());
int totalityPage =curr/pageSize;//计算总页数
if(curr%pageSize!=0){           //如果有余数
totalityPage +=1;      //总页数加 1
}
return totalityPage;
} catch (RuntimeException re) {
log.error("find all failed", re);
throw re;
}
}

// 显示 action
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
//取得分页对象 page 并放入 session 中
HttpSession session = request.getSession(true);
Pagination page = (Pagination) session.getAttribute("page");
if(page == null){
page = new Pagination();
session.setAttribute("page", page);
}
//获得当前页从页面传过来的
String cpage = request.getParameter("currentlyPage");
int currentlyPage=1;
if(cpage == null){
currentlyPage=1;
}else{
currentlyPage = Integer.parseInt(cpage);
}

page.setCurrentlyPage(currentlyPage);//设置当前页
page.setPageSize(5);                //设置页面大小
EmpBusi empbusi = new EmpBusi();
List empall =empbusi.findAll(page.getCurrentlyPage(),page.getPageSize());
int totalityPage = empbusi.getTotalityPage(page.getPageSize());
page.setTotalityPage(totalityPage);//设置总页数
page.setData(empall);              //设置数据集
return mapping.findForward("ok");  //跳转
}
=======================================================
========================显示界面=======================
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JSP for AddEmpForm form</title>
</head>
<body>
<p align="center">显示界面 <a href="addEmp.jsp">添加</a></p>
<table width="800" border="1" align="center">
      <tr>
        <td width="18">编号</td>
        <td width="18">姓名</td>
        <td width="18">性别</td>
        <td width="18">年龄</td>
        <td width="18">部门</td>
        <td width="18">爱好</td>
        <td width="18">修改</td>
        <td width="23">删除</td>
      </tr>
      
      <logic:iterate id="emp" name="page" property="data">
      <tr>
        <td><bean:write name="emp" property="empID"/></td>
        <td><bean:write name="emp" property="empName"/></td>
        <td><bean:write name="emp" property="empSex"/></td>
        <td><bean:write name="emp" property="empBirthday"/></td>
        <td><bean:write name="emp" property="empPost"/></td>
        <td>
         <nested:iterate id="elove" name="emp" property="empLove">
         <bean:write name="elove" property="love"/>
         </nested:iterate>
        </td>
        <td><a href="${pageContext.request.contextPath}/findAmendEmp.do?empID=<bean:write name="emp" property="empID"/>">修改</a></td>
        <td><a href="${pageContext.request.contextPath}/delEmp.do?empID=<bean:write name="emp" property="empID"/>">删除</a></td>
      </tr>
      </logic:iterate>
    </table>
    
    <div align="center">
  <a href="${pageContext.request.contextPath}/display.do?currentlyPage=1">首页</a>
   
        <logic:notEqual value="1" property="currentlyPage" name="page">
         <a href="${pageContext.request.contextPath}/display.do?currentlyPage=${page.currentlyPage-1}">上一页</a>
   </logic:notEqual>
         
   <logic:equal value="1" property="currentlyPage" name="page">上一页</logic:equal>
          
   <logic:notEqual value="${page.totalityPage}" property="currentlyPage" name="page">
   <a href="${pageContext.request.contextPath}/display.do?currentlyPage=${page.currentlyPage+1}">下一页</a>
   </logic:notEqual>
         
   <logic:equal value="${page.totalityPage}" property="currentlyPage" name="page">下一页</logic:equal>
   <a href="${pageContext.request.contextPath}/display.do?currentlyPage=${page.totalityPage }">末页</a>
   </div>
</body>
</html>
===================================
终于加完注释了^_^ 希望楼主能有灵感太困了其中注释不清楚或有错误
请原谅！！睡觉喽！！！晚安！！

不知道你是大哥还是大姐，真的太感谢你了
我是一个j2ee新手
你的代码让我有许多收获！
真想和你好好聊聊！
可是在这里又不好从和说起！希望收到你的邮件!

自己写一个分页标签或者使用displaytag插件。

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