基于Bootstrap和jQuery构建前端分页工具实例代码

<script type="text/javascript">
//上一页
function previous(){
//当前页-1
new_page = parseInt($('#current_page').val()) - 1;
go_to_page(new_page);
}
//下一页
function next(){
//当前页+1
new_page = parseInt($('#current_page').val()) + 1;
go_to_page(new_page);
}
//跳转某一页
function go_to_page(page_num){
$('.page_link[longdesc=' + page_num +']').parent().addClass('active').siblings('.active').removeClass('active');
//获取隐藏域中页数大小（每页多少条数据）
var show_per_page = parseInt($('#show_per_page').val());
//得到元素从哪里开始的片数（点击页 * 页大小）如点击第5页，5条/页。则开始为25
start_from = page_num * show_per_page;
//得到结束片的元素数量，如果开始为25，5条/页，则结束为30
end_on = start_from + show_per_page;
//隐藏所有子div元素的内容,显示具体片数据，如显示25~30
$('#datas').children().css('display', 'none').slice(start_from, end_on).css('display', 'inline-block');
//每页显示的数目
var show_per_page = 10;
//获取总数据的数量
var number_of_items = $('#topics').children().size();
//计算页数
var number_of_pages = Math.ceil(number_of_items/show_per_page);
//在页数区域内则做页偏移
if( (page_num >= 2) && (page_num <= (number_of_pages - 3)) ){
//生成分页->上一页
var page_info = '<li><a class="previous_link" href="javascript:previous();">&laquo;</a></li>';
var p = page_num;
var i = page_num - 2;
var j = page_num + 2;
//生成分页->前2页
while(page_num > i){
page_info += '<li><a class="page_link" href="javascript:go_to_page(' + i +')" longdesc="' + i +'">'+ (i + 1) +'</a></li>';
i++;
}
//生成分页->当前页
page_info += '<li><a class="page_link" href="javascript:go_to_page(' + page_num +')" longdesc="' + page_num +'">'+ (page_num + 1) +'</a></li>';
//生成分页->后2页
while(p < j){
if(p == number_of_pages){
break;
}
page_info += '<li><a class="page_link" href="javascript:go_to_page(' + (p + 1) +')" longdesc="' + (p + 1) +'">'+ (p + 2) +'</a></li>';
p++;
}
//生成分页->下一页
page_info += '<li><a class="next_link" href="javascript:next();">&raquo;</a></li>';
//加载分页
$('.pagination').html(page_info);
$('.page_link[longdesc=' + page_num +']').parent().addClass('active').siblings('.active').removeClass('active');
}
else{ //否则不偏移
//激活某一页，使得显示某一页
$('.page_link[longdesc=' + page_num +']').parent().addClass('active').siblings('.active').removeClass('active');
}
//更新隐藏域中当前页
$('#current_page').val(page_num);
}
$(function(){
//每页显示的数目
var show_per_page = 10;
//获取话题数据的数量
var number_of_items = $('#datas').children().size();
//计算页数
var number_of_pages = Math.ceil(number_of_items/show_per_page);
//设置隐藏域默认值
$('#current_page').val(0);
$('#show_per_page').val(show_per_page);
//生成分页->上一页
var page_info = '<li><a class="previous_link" href="javascript:previous();">&laquo;</a></li>';
var current_link = 0;
//生成分页->页数
while(number_of_pages > current_link){
if(current_link == 5){
break;
}
page_info += '<li><a class="page_link" href="javascript:go_to_page(' + current_link +')" longdesc="' + current_link +'">'+ (current_link + 1) +'</a></li>';
current_link++;
}
//生成分页->下一页
page_info += '<li><a class="next_link" href="javascript:next();">&raquo;</a></li>';
//加载分页
$('.pagination').html(page_info);
//生成分页->左侧总数
$("#data-total-page").html(show_per_page+"条/页，共"+number_of_pages+"页")
//激活第一页，使得显示第一页
$('#data-pagination li').eq(1).addClass('active');
//隐藏该对象下面的所有子元素
$('#datas').children().css('display', 'none');
//显示第n（show_per_page）元素
$('#datas').children().slice(0, show_per_page).css('display', 'inline-block');
});
</script>

<!-- 数据 -->
<div id="datas">
<?php
foreach($data as $v)
{
echo '<div class="data">
<div class="data-info">
<div class="data-name">' + $v['name'] + '</div>
<div class="data-blog">' + $v['blog'] + '</div>
</div>
</div>
';
}
?>
</div>
<!-- 分页 -->
<input type="hidden" id="current_page" value="0">
<input type="hidden" id="show_per_page" value="0">
<div id="data-page-info">
<div id="data-total-page"></div>
<div id="data-pagination">
<ul class="pagination"></ul>
</div>
</div>