js实现分页的几个源码，看完基本就懂了
第一种：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>addUser.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="../js/wpCalendar.js">
</script>
</head>
<body>
<div align="center">
<h1>
显示有的用户界面
</h1>
<div
style="border: 1px red solid; margin-bottom: 100px; padding: 10px 10%">
<table border="1px" cellpadding="0" cellspacing="0" id="tusers">
<thead>
<tr>
<th>
<input type="checkbox" name="chbk" id="chbk1" />
</th>
<th>
名称
</th>
<th>
性别
</th>
<th>
邮箱
</th>
<th>
出生日期
</th>
<th>
操作
</th>
</tr>
</thead>
<tbody id="users">
</tbody>
</table>
<div id="pages">
</div>
</div>
<div style="border: 1px blue solid;">
<form>
<table id="divs">
<tbody id="addUsers">
<tr>
<td>
用户名:
</td>
<td>
<input type="text" name="name" id="name" />
</td>
</tr>
<tr>
<td>
性别:
</td>
<td>
<select id="sex">
<option value="男">
男
</option>
<option value="女">
女
</option>
</select>
</td>
</tr>
<tr>
<td>
邮箱:
</td>
<td>
<input type="text" name="email" id="email" />
</td>
</tr>
<tr>
<td>
出生日期:
</td>
<td>
<input type="text" id="bir" name="bir" />
<input type=button value="点击看我"
onclick="showCalendar(this,document.all.bir)">
</td>
</tr>
<tr id="addu">
<td colspan="2">
<input type="button" value="添加" onclick="addUser()" id="add" />
</td>
</tr>
<tr id="addu1">
<td colspan="2">
<input type="button" value="修改" id="upduser" />
</td>
</tr>
</tbody>
</table>
</form>
</div>
</div>
</body>
</html>
<script>
window.onload = function() {
document.getElementByIdx_x("addu1").style.display = "none";
}
function addUser() {
var name = document.getElementByIdx_x("name").value;
var sex = document.getElementByIdx_x("sex").value;
var email = document.getElementByIdx_x("email").value;
var bir = document.getElementByIdx_x("bir").value;
//获取表格节点对象
var tusers = document.getElementByIdx_x("tusers");
//创建行
var tr1 = document.createElement_x("tr");
var cbk = document.createElement_x("td");
var tname = document.createElement_x("td");
var tsex = document.createElement_x("td");
var temail = document.createElement_x("td");
var tbir = document.createElement_x("td");
var toper = document.createElement_x("td");
var cbk1 = document.createElement_x("input");
cbk1.setAttribute("type", "checkbox");
cbk1.setAttribute("name", "chbk");
cbk.appendChild(cbk1);
tname.appendChild(document.createTextNode(name));
tsex.appendChild(document.createTextNode(sex));
temail.appendChild(document.createTextNode(email));
tbir.appendChild(document.createTextNode(bir));
var adelete = document.createElement_x("a");
var aupdate = document.createElement_x("a");
adelete.setAttribute("href", "#");
aupdate.setAttribute("href", "#");
adelete.appendChild(document.createTextNode("删除 |"));
aupdate.appendChild(document.createTextNode("修改"));
toper.appendChild(adelete);
toper.appendChild(aupdate)
//往行中添加
tr1.appendChild(cbk);
tr1.appendChild(tname);
tr1.appendChild(tsex);
tr1.appendChild(temail);
tr1.appendChild(tbir);
tr1.appendChild(toper);
var users = document.getElementByIdx_x("users");
users.appendChild(tr1);
tusers.appendChild(users);
//删除操作
adelete.onclick = function() {
users.removeChild(adelete.parentNode.parentNode);
}
//修改操作
aupdate.onclick = function() {
document.getElementByIdx_x("addu").style.display = "none";
document.getElementByIdx_x("addu1").style.display = "block";
var utr = aupdate.parentNode.parentNode;
var utrs = utr.childNodes;
document.getElementByIdx_x("name").value = utrs[1].innerHTML;
document.getElementByIdx_x("sex").value = utrs[2].innerHTML;
document.getElementByIdx_x("email").value = utrs[3].innerHTML;
document.getElementByIdx_x("bir").value = utrs[4].innerHTML;
var upUser = document.getElementByIdx_x("upduser");
upUser.onclick = function() {
utr.childNodes[1].innerHTML = document.getElementByIdx_x("name").value;
utr.childNodes[2].innerHTML = document.getElementByIdx_x("sex").value;
utr.childNodes[3].innerHTML = document.getElementByIdx_x("email").value
utr.childNodes[4].innerHTML = document.getElementByIdx_x("bir").value
document.getElementByIdx_x("addu1").style.display = "none";
document.getElementByIdx_x("addu").style.display = "block";
}
}
//当添加用户的时候调用分页技术
testPage()
}
//定义分页标签节点对象并创建
var indexPage = document.createElement_x("a");
var upPage = document.createElement_x("a");
var downPage = document.createElement_x("a");
var endPage = document.createElement_x("a");
var nowpage = 1;
//分页技术的实现
function testPage() {
var tbodyUsers = document.getElementByIdx_x("users");
var trUsers = tbodyUsers.getElementsByTagName_r("tr");
//获取总记录数
var countRecord = trUsers.length;
//每页显示的记录数
var PAGESIZE = 2;
//总页数
var countPage = (countRecord % PAGESIZE == 0 ? countRecord / PAGESIZE
: Math.ceil(countRecord / PAGESIZE));
//当前页信息
// =======>从那条记录开始 (nowpage-1)*PAGESIZE;
//var nowpage = countPage;
//获取创建分页标签的节点对象
var pages = document.getElementByIdx_x("pages");
//如果没有创建分页标签的节点则创建节点对象
if (!pages.hasChildNodes()) {
getPages(nowpage);
}
//当点击首页时的操作
indexPage.onclick = function() {
nowpage = 1;
//显示首页的记录
indexPageInfo(countRecord, trUsers);
}
//当点击上一页的操作
upPage.onclick = function() {
if (nowpage - 1 > 1) {
nowpage -= 1;
} else {
nowpage = 1;
indexPageInfo(countRecord, trUsers);
}
//显示上一页记录
var startindex = (nowpage - 1) * PAGESIZE;
alert(startindex + "====================++++++");
var endindex = startindex + PAGESIZE;
PageInfo(startindex, endindex, countRecord, trUsers)
}
//当点击下一页的操作
downPage.onclick = function() {
if (nowpage + 1 >= countPage) {
nowpage = countPage;
} else {
nowpage += 1;
}
alert(nowpage + "-----------------");
//显示上一页记录
var startindex = (nowpage - 1) * PAGESIZE;
alert(startindex + "====================++++++");
var endindex = startindex + PAGESIZE;
alert(startindex + "-----" + endindex + "---");
PageInfo(startindex, endindex, countRecord, trUsers)
}
//当点击最后一页的操作
endPage.onclick = function() {
nowpage = countPage;
if (nowpage > 1) {
var startindex = (nowpage-1)*PAGESIZE;
for ( var i = 0; i < countRecord; i++) {
if (i < startindex) {
trUsers[i].style.display = "none";
} else {
trUsers[i].style.display = "block";
}
}
第二种：
<script language="JavaScript">
var totalRecordNum = <%=totalRecordNum%>;//总记录条数(从java程序中获取)
var currentPageNumber = 1;//当前页号
if(totalRecordNum==0)
{
currentPageNumber = 0;
}
var perPageRecordNum = 5;//每页记录条数(js中设置)
//计算总页数
var totalPageNumber = Math.ceil(totalRecordNum/perPageRecordNum);
var startShowPage ;//开始显示页记录号数
var endShowPage ;//结束显示页记录号数
//回车键和点击"GO"图片的效果一样
function keyDown() {
if(event.keyCode == 13){
goToPage();
}
}
//跳到指定页
function goToPage()
{
if(totalRecordNum != 0)
{
var pageNo = document.BillQueryForm.pageNum.value;
//校验页号
if((/[^0-9]/gi.test(pageNo)) | pageNo.length==0)
{
alert("页数必须为数字!");
return;
}
else
{
if((pageNo > totalPageNumber)|(pageNo<1))
{
alert("你所输入的页数超出范围！");
return;
}
}
//跳转到指定页
startShowPage = (pageNo-1)*perPageRecordNum;
endShowPage = pageNo*perPageRecordNum;
exeShowPage();
currentPageNumber = pageNo;
curPageNo.innerHTML = currentPageNumber;
totalPageNo.innerHTML = totalPageNumber;
}
}
//跳转到第一页
function goToFirstPage()
{
if(totalRecordNum != 0)
{
startShowPage = 0*perPageRecordNum;
endShowPage = 1*perPageRecordNum;
currentPageNumber = 1;
exeShowPage();
curPageNo.innerHTML = currentPageNumber;
totalPageNo.innerHTML = totalPageNumber;
}
}
function goToLastPage()
{
if(totalRecordNum != 0)
{
if(totalRecordNum%perPageRecordNum==0)//除尽
{
var tempVal = totalRecordNum/perPageRecordNum;
startShowPage = (tempVal-1)*perPageRecordNum;
endShowPage = tempVal*perPageRecordNum;
}
else
{
var tempVal = totalRecordNum%perPageRecordNum;//得到余数,就是最后一页要显示的记录条数
startShowPage = totalRecordNum-tempVal;
endShowPage = totalRecordNum;
}
currentPageNumber=totalPageNumber;
exeShowPage();
curPageNo.innerHTML = currentPageNumber;
totalPageNo.innerHTML = totalPageNumber;
}
}
function goToNextPage()
{
if(totalRecordNum != 0)
{
if(currentPageNumber< totalPageNumber)
{
currentPageNumber = Number(currentPageNumber)+1;
startShowPage = (currentPageNumber-1)*perPageRecordNum;
endShowPage = currentPageNumber*perPageRecordNum;
exeShowPage();
curPageNo.innerHTML = currentPageNumber;
totalPageNo.innerHTML = totalPageNumber;
}
else
{
alert("当前页已经是最后一页了!");
}
}
}
function goToBeforePage()
{
if(totalRecordNum != 0)
{
if(currentPageNumber>1)
{
currentPageNumber = currentPageNumber-1;
startShowPage = (currentPageNumber-1)*perPageRecordNum;
endShowPage = currentPageNumber*perPageRecordNum;
exeShowPage();
curPageNo.innerHTML = currentPageNumber;
totalPageNo.innerHTML = totalPageNumber;
}
else
{
alert("当前页已经是第一页了!");
}
}
}
function exeShowPage()
{
for(var i = 0; i<totalRecordNum;i++)
{
if ((i>=startShowPage)&&(i<endShowPage))
{
document.getElementByIdx_x("row"+i).style.display="";
}
else
{
document.getElementByIdx_x("row"+i).style.display="none";
}
}
}
function submitQuery()
{
var sForm = document.JXCardNumQueryForm;
if(sForm.elements["jxCardVO.jxcardid"].value==""){
alert("请输入您要查询的卡号！");
sForm.elements["jxCardVO.jxcardid"].focus();
return 0;
}
if(sForm.elements["jxCardVO.password"].value==""){
alert("请输入您要查询的密码！");
sForm.elements["jxCardVO.password"].focus();
return 0;
}
sForm.action="jxCardNumQuery.do?type=dxk";
sForm.submit();
return;
}
function cancelQuery()
{
window.history.go(-1);
}
function check()
{
if(document.all("card_no").value==""){
alert("卡号不能为空，请输入卡号！");
document.all("card_no").focus();
return false;
}
if(document.all("password").value==""){
alert("密码不能为空!");
document.all("password").focus();
return false;
}
return true;
}
//-->
</script>
<body onLoad="javascript:goToFirstPage();">
<%if(totalRecordNum!=0) {%>
<tr>
<td colspan='4' align="right">
当前第<span id="curPageNo"></span>页/总计<span id="totalPageNo"></span>页
<a onClick="javascript:goToFirstPage();" style="cursor:hand;"><img src="images/page_top.gif" width="9" height="9" border="0">第一页</a>
<a onClick="javascript:goToBeforePage();" style="cursor:hand;"><img src="images/page_prev.gif" width="9" height="9" border="0">上一页</a>
<a onClick="javascript:goToNextPage();" style="cursor:hand;">下一页<img src="images/page_next.gif" width="9" height="9"></a>
<a onClick="javascript:goToLastPage();" style="cursor:hand;">最后一页<img src="images/page_end.gif" width="9" height="9" border="0"></a>
<input type="text" id="pageNum" name="pageNum" size="5" onkeydown="javascript:keyDown();">
<input type="button" class="orangebtn_s" value="Go!" onclick="javascript:goToPage();" />
</td>
</tr>
<%}
else{%>
<tr>
<td colspan='4' align="right">
<span id="curPageNo"></span>
<span id="totalPageNo"></span>
</td>
</tr>
<%}%>
</logic:present>
</table>
</td>
</tr>
</table>
</html:form>
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