jquery.pagination.js分页demo
公用jquery.pagination.js
/** * This jQuery plugin displays pagination links inside the selected elements. * * @author Gabriel Birke (birke *at* d-scribe *dot* de) * @version 1.2 * @param {int} maxentries Number of entries to paginate * @param {Object} opts Several options (see README for documentation) * @return {Object} jQuery Object */ jQuery.fn.pagination = function(maxentries, opts){ opts = jQuery.extend({ items_per_page:10, num_display_entries:10, current_page:0, num_edge_entries:0, link_to:"#", prev_text:"Prev", next_text:"Next", ellipse_text:"...", prev_show_always:true, next_show_always:true, callback:function(){return false;} },opts||{}); return this.each(function() { /** * 计算最大分页显示数目 */ function numPages() { return Math.ceil(maxentries/opts.items_per_page); } /** * 极端分页的起始和结束点，这取决于current_page 和 num_display_entries. * @返回 {数组(Array)} */ function getInterval() { var ne_half = Math.ceil(opts.num_display_entries/2); var np = numPages(); var upper_limit = np-opts.num_display_entries; var start = current_page>ne_half?Math.max(Math.min(current_page-ne_half, upper_limit), 0):0; var end = current_page>ne_half?Math.min(current_page+ne_half, np):Math.min(opts.num_display_entries, np); return [start,end]; } /** * 分页链接事件处理函数 * @参数 {int} page_id 为新页码 */ function pageSelected(page_id, evt){ current_page = page_id; drawLinks(); var continuePropagation = opts.callback(page_id, panel); if (!continuePropagation) { if (evt.stopPropagation) { evt.stopPropagation(); } else { evt.cancelBubble = true; } } return continuePropagation; } /** * 此函数将分页链接插入到容器元素中 */ function drawLinks() { panel.empty(); var interval = getInterval(); var np = numPages(); // 这个辅助函数返回一个处理函数调用有着正确page_id的pageSelected。 var getClickHandler = function(page_id) { return function(evt){ return pageSelected(page_id,evt); } } //辅助函数用来产生一个单链接(如果不是当前页则产生span标签) var appendItem = function(page_id, appendopts){ page_id = page_id<0?0:(page_id<np?page_id:np-1); // 规范page id值 appendopts = jQuery.extend({text:page_id+1, classes:""}, appendopts||{}); if(page_id == current_page){ var lnk = jQuery("<span class='current'>"+(appendopts.text)+"</span>"); }else{ var lnk = jQuery("<a>"+(appendopts.text)+"</a>") .bind("click", getClickHandler(page_id)) .attr('href', opts.link_to.replace(/__id__/,page_id)); } if(appendopts.classes){lnk.addClass(appendopts.classes);} panel.append(lnk); } // 产生"Previous"-链接 if(opts.prev_text && (current_page > 0 || opts.prev_show_always)){ appendItem(current_page-1,{text:opts.prev_text, classes:"prev"}); } // 产生起始点 if (interval[0] > 0 && opts.num_edge_entries > 0) { var end = Math.min(opts.num_edge_entries, interval[0]); for(var i=0; i<end; i++) { appendItem(i); } if(opts.num_edge_entries < interval[0] && opts.ellipse_text) { jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel); } } // 产生内部的些链接 for(var i=interval[0]; i<interval[1]; i++) { appendItem(i); } // 产生结束点 if (interval[1] < np && opts.num_edge_entries > 0) { if(np-opts.num_edge_entries > interval[1]&& opts.ellipse_text) { jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel); } var begin = Math.max(np-opts.num_edge_entries, interval[1]); for(var i=begin; i<np; i++) { appendItem(i); } } // 产生 "Next"-链接 if(opts.next_text && (current_page < np-1 || opts.next_show_always)){ appendItem(current_page+1,{text:opts.next_text, classes:"next"}); } } //从选项中提取current_page var current_page = opts.current_page; //创建一个显示条数和每页显示条数值 maxentries = (!maxentries || maxentries < 0)?1:maxentries; opts.items_per_page = (!opts.items_per_page || opts.items_per_page < 0)?1:opts.items_per_page; //存储DOM元素，以方便从所有的内部结构中获取 var panel = jQuery(this); // 获得附加功能的元素 this.selectPage = function(page_id){ pageSelected(page_id);} this.prevPage = function(){ if (current_page > 0) { pageSelected(current_page - 1); return true; } else { return false; } } this.nextPage = function(){ if(current_page < numPages()-1) { pageSelected(current_page+1); return true; } else { return false; } } // 所有初始化完成，绘制链接 drawLinks(); // 回调函数 opts.callback(current_page, this); }); }
在js中调用：
$("#pagination").pagination($("#totalRecords").text(),{
num_edge_entries: 1, //边缘页数
num_display_entries: 4, //主体页数
current_page:parseInt(obj.currPageIndex),
items_per_page:parseInt(obj.pageSize),
prev_text: "<<",
next_text: ">>",
callback:function(pageIndex,container){
if(obj.isPageInit)
{
obj.isPageInit=false;
}
else
{
obj.currPageIndex=pageIndex;
obj.getBookPager();
return false;
}
}
});
jsp页面：
<div class="row-fluid div-pager"> <div class="span4"> <div class="pageTip"> 当前为第<input type="hidden" id="hd-pageSize" value="${pageInfo.pageSize}"> <input type="hidden" id="hd-pageIndex" value="${pageInfo.pageIndex}">${pageInfo.totalRecord==0?0: pageInfo.pageSize*pageInfo.pageIndex+1} 到第${(pageInfo.pageIndex+1)*pageInfo.pageSize>pageInfo.totalRecord?pageInfo.totalRecord:(pageInfo.pageIndex+1)*pageInfo.pageSize} 条数据；总共有<span id="totalRecords">${pageInfo.totalRecord}</span>条记录 </div> </div> <div class="span7 pull-right"> <div class=" pull-right">到第<input type="number" name="toNo" value="${toNo}" min="1" max="${pageInfo.totalPageNumber}" style="width:40px;height:15px;margin-bottom:3px;padding:0 3px">页 <a href="#" class="toPageNo" style="color:black">确定</a></div> <div id="pagination" class="pagination pull-right"></div> </div> </div>
