谷歌分页--------通用
Javabean包
=====================================================================================
package cn.csdn.domain;
import java.util.List;
public class Page {
private int nowpage;// 当前页
private int countrecord;// 总记录数
private int countpage;// 总页数
public static final int PAGESIZE = 5;// 每页显示的记录数
private int startindex;// 开始的索引值
private int endindex;// 结束的索引值
private List allentities;
private int listPageSize;
public int getListPageSize() {
return listPageSize;
}
public void setListPageSize(int listPage) {
this.listPageSize = listPage ;
}
public Page() {
}
public int getNowpage() {
return nowpage;
}
public void setNowpage(int nowpage) {
this.nowpage = nowpage;
}
public int getCountrecord() {
return countrecord;
}
public void setCountrecord(int countrecord) {
this.countrecord = countrecord;
}
public int getCountpage() {
return countpage;
}
public void setCountpage(int countpage) {
this.countpage = countpage;
}
public int getStartindex() {
if (nowpage > this.getListPageSize()/2) {
if (countpage - nowpage > this.getListPageSize()/2) {
startindex = nowpage - this.getListPageSize()/2;
} else {
startindex = countpage -this.getListPageSize();
}
}
return startindex;
}
public void setStartindex(int startindex) {
this.startindex = startindex;
}
public int getEndindex() {
if ((nowpage + this.getListPageSize()/2)>countpage) {
return endindex = countpage;
} else {
return endindex = endindex + nowpage - 1;
}
}
public void setEndindex(int endindex) {
this.endindex = endindex;
}
public List getAllentities() {
return allentities;
}
public void setAllentities(List allentities) {
this.allentities = allentities;
}
}
===============================================================================================
servlet中
==============================================================================================
package cn.csdn.web.servlet;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import cn.csdn.web.service.StudentServiceImpl;
import cn.csdn.domain.Page;
import cn.csdn.domain.Student;
public class ListStusServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
this.doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
//1.设置编码
req.setCharacterEncoding("utf8");
//2.获取当前页
Page stupage = new Page();
int nowpage=1;
String npage = req.getParameter("nowPage");
if(npage!=null){
nowpage = Integer.valueOf(npage);
}
StudentServiceImpl ssi = new StudentServiceImpl();
stupage.setCountpage(ssi.getCountPage());
stupage.setNowpage(nowpage);
int pageListSize=10;
stupage.setStartindex(1);
stupage.setListPageSize(pageListSize);
if(pageListSize%2==0){
stupage.setEndindex(stupage.getListPageSize()/2);
}else{
stupage.setEndindex(stupage.getListPageSize()/2+1);
}
stupage.setCountpage(ssi.getCountPage());
List<Student> allentities = ssi.getNowPageInfo(nowpage);
stupage.setAllentities(allentities);
stupage.setCountrecord(ssi.getCountRecord());
req.setAttribute("stupage", stupage);
req.getRequestDispatcher("liststs.jsp").forward(req, resp);
}
}
=========================================================================================
jsp网页中
==========================================================================================
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
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>全部学生</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<div align="center">
<h1>
显示所有的学员信息
</h1>
<table border="1px" cellpadding="0" cellspacing="0" width="600"
height="400">
<caption>
学员信息
</caption>
<tr>
<th>
全选
</th>
<th>
序列
</th>
<th>
姓名
</th>
<th>
年龄
</th>
<th>
邮箱
</th>
<th>
操作
</th>
</tr>
<c:forEach items="${stupage.allentities}" var="student">
<tr>
<td>
<input type="checkbox" name="chk" />
</td>
<td>
${student.id}
</td>
<td>
${student.name}
</td>
<td>
${student.age}
</td>
<td>
${student.email}
</td>
<td>
编辑|删除
</td>
</tr>
</c:forEach>
</table>
<div>
<c:if test="${stupage.nowpage!=1}">
<span><a href="./StudentList.do?nowPage=${stupage.nowpage-1}">上一页</a>
</span>
</c:if>
<c:forEach begin="${stupage.startindex}" end="${stupage.endindex}" var="indexPage">
<a href="./StudentList.do?nowPage=${indexPage}"
<c:if test="${stupage.nowpage==indexPage}"> style="color: red" </c:if>><span>[
${indexPage} ]</span> </a>
</c:forEach>
<c:if test="${stupage.nowpage+1<=stupage.countpage}">
<span><a href="./StudentList.do?nowPage=${stupage.nowpage+1}">下一页</a>
</span>
</c:if>
</div>
</div>
</body>
</html>
=====================================================================================
package cn.csdn.domain;
import java.util.List;
public class Page {
private int nowpage;// 当前页
private int countrecord;// 总记录数
private int countpage;// 总页数
public static final int PAGESIZE = 5;// 每页显示的记录数
private int startindex;// 开始的索引值
private int endindex;// 结束的索引值
private List allentities;
private int listPageSize;
public int getListPageSize() {
return listPageSize;
}
public void setListPageSize(int listPage) {
this.listPageSize = listPage ;
}
public Page() {
}
public int getNowpage() {
return nowpage;
}
public void setNowpage(int nowpage) {
this.nowpage = nowpage;
}
public int getCountrecord() {
return countrecord;
}
public void setCountrecord(int countrecord) {
this.countrecord = countrecord;
}
public int getCountpage() {
return countpage;
}
public void setCountpage(int countpage) {
this.countpage = countpage;
}
public int getStartindex() {
if (nowpage > this.getListPageSize()/2) {
if (countpage - nowpage > this.getListPageSize()/2) {
startindex = nowpage - this.getListPageSize()/2;
} else {
startindex = countpage -this.getListPageSize();
}
}
return startindex;
}
public void setStartindex(int startindex) {
this.startindex = startindex;
}
public int getEndindex() {
if ((nowpage + this.getListPageSize()/2)>countpage) {
return endindex = countpage;
} else {
return endindex = endindex + nowpage - 1;
}
}
public void setEndindex(int endindex) {
this.endindex = endindex;
}
public List getAllentities() {
return allentities;
}
public void setAllentities(List allentities) {
this.allentities = allentities;
}
}
===============================================================================================
servlet中
==============================================================================================
package cn.csdn.web.servlet;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import cn.csdn.web.service.StudentServiceImpl;
import cn.csdn.domain.Page;
import cn.csdn.domain.Student;
public class ListStusServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
this.doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
//1.设置编码
req.setCharacterEncoding("utf8");
//2.获取当前页
Page stupage = new Page();
int nowpage=1;
String npage = req.getParameter("nowPage");
if(npage!=null){
nowpage = Integer.valueOf(npage);
}
StudentServiceImpl ssi = new StudentServiceImpl();
stupage.setCountpage(ssi.getCountPage());
stupage.setNowpage(nowpage);
int pageListSize=10;
stupage.setStartindex(1);
stupage.setListPageSize(pageListSize);
if(pageListSize%2==0){
stupage.setEndindex(stupage.getListPageSize()/2);
}else{
stupage.setEndindex(stupage.getListPageSize()/2+1);
}
stupage.setCountpage(ssi.getCountPage());
List<Student> allentities = ssi.getNowPageInfo(nowpage);
stupage.setAllentities(allentities);
stupage.setCountrecord(ssi.getCountRecord());
req.setAttribute("stupage", stupage);
req.getRequestDispatcher("liststs.jsp").forward(req, resp);
}
}
=========================================================================================
jsp网页中
==========================================================================================
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
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>全部学生</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<div align="center">
<h1>
显示所有的学员信息
</h1>
<table border="1px" cellpadding="0" cellspacing="0" width="600"
height="400">
<caption>
学员信息
</caption>
<tr>
<th>
全选
</th>
<th>
序列
</th>
<th>
姓名
</th>
<th>
年龄
</th>
<th>
邮箱
</th>
<th>
操作
</th>
</tr>
<c:forEach items="${stupage.allentities}" var="student">
<tr>
<td>
<input type="checkbox" name="chk" />
</td>
<td>
${student.id}
</td>
<td>
${student.name}
</td>
<td>
${student.age}
</td>
<td>
${student.email}
</td>
<td>
编辑|删除
</td>
</tr>
</c:forEach>
</table>
<div>
<c:if test="${stupage.nowpage!=1}">
<span><a href="./StudentList.do?nowPage=${stupage.nowpage-1}">上一页</a>
</span>
</c:if>
<c:forEach begin="${stupage.startindex}" end="${stupage.endindex}" var="indexPage">
<a href="./StudentList.do?nowPage=${indexPage}"
<c:if test="${stupage.nowpage==indexPage}"> style="color: red" </c:if>><span>[
${indexPage} ]</span> </a>
</c:forEach>
<c:if test="${stupage.nowpage+1<=stupage.countpage}">
<span><a href="./StudentList.do?nowPage=${stupage.nowpage+1}">下一页</a>
</span>
</c:if>
</div>
</div>
</body>
</html>