实用的分页插件

这里分享一个实用的分页插件，希望可以帮助到需要它的人，见附件。

js文件

/** * This jQuery plugin displays pagination links inside the selected elements. *  * This plugin needs at least jQuery 1.4.2 * * @author Gabriel Birke (birke *at* d-scribe *dot* de) * @version 2.2 * @param {int} maxentries Number of entries to paginate * @param {Object} opts Several options (see README for documentation) * @return {Object} jQuery Object */ (function($){/** * @class Class for calculating pagination values */$.PaginationCalculator = function(maxentries, opts) {this.maxentries = maxentries;this.opts = opts;}$.extend($.PaginationCalculator.prototype, {/** * Calculate the maximum number of pages * @method * @returns {Number} */numPages:function() {return Math.ceil(this.maxentries/this.opts.items_per_page);},/** * Calculate start and end point of pagination links depending on  * current_page and num_display_entries. * @returns {Array} */getInterval:function(current_page)  {var ne_half = Math.floor(this.opts.num_display_entries/2);var np = this.numPages();var upper_limit = np - this.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 + (this.opts.num_display_entries % 2), np):Math.min(this.opts.num_display_entries, np);return {start:start, end:end};}});// Initialize jQuery object container for pagination renderers$.PaginationRenderers = {}/** * @class Default renderer for rendering pagination links */$.PaginationRenderers.defaultRenderer = function(maxentries, opts) {this.maxentries = maxentries;this.opts = opts;this.pc = new $.PaginationCalculator(maxentries, opts);}$.extend($.PaginationRenderers.defaultRenderer.prototype, {/** * Helper function for generating a single link (or a span tag if it's the current page) * @param {Number} page_id The page id for the new item * @param {Number} current_page  * @param {Object} appendopts Options for the new item: text and classes * @returns {jQuery} jQuery object containing the link */createLink:function(page_id, current_page, appendopts){var lnk, np = this.pc.numPages();page_id = page_id<0?0:(page_id<np?page_id:np-1); // Normalize page id to sane valueappendopts = $.extend({text:page_id+1, classes:""}, appendopts||{});if(page_id == current_page){lnk = $("<a class='current'>" + appendopts.text + "</a>");}else{lnk = $("<a>" + appendopts.text + "</a>").attr('href', this.opts.link_to.replace(/__id__/,page_id));}if(appendopts.classes){ lnk.addClass(appendopts.classes); }lnk.data('page_id', page_id);return lnk;},// Generate a range of numeric links appendRange:function(container, current_page, start, end, opts) {var i;for(i=start; i<end; i++) {this.createLink(i, current_page, opts).appendTo(container);}},getLinks:function(current_page, eventHandler) {var begin, end,interval = this.pc.getInterval(current_page),np = this.pc.numPages(),fragment = $("<div class='pagination'></div>");// Generate "Previous"-Linkif(this.opts.prev_text && (current_page > 0 || this.opts.prev_show_always)){fragment.append(this.createLink(current_page-1, current_page, {text:this.opts.prev_text, classes:"prev"}));}// Generate starting pointsif (interval.start > 0 && this.opts.num_edge_entries > 0){end = Math.min(this.opts.num_edge_entries, interval.start);this.appendRange(fragment, current_page, 0, end, {classes:'sp'});if(this.opts.num_edge_entries < interval.start && this.opts.ellipse_text){$("<span class='pagination-break'>"+this.opts.ellipse_text+"</span>").appendTo(fragment);}}// Generate interval linksthis.appendRange(fragment, current_page, interval.start, interval.end);// Generate ending pointsif (interval.end < np && this.opts.num_edge_entries > 0){if(np-this.opts.num_edge_entries > interval.end && this.opts.ellipse_text){$("<span class='pagination-break'>"+this.opts.ellipse_text+"</span>").appendTo(fragment);}begin = Math.max(np-this.opts.num_edge_entries, interval.end);this.appendRange(fragment, current_page, begin, np, {classes:'ep'});}// Generate "Next"-Linkif(this.opts.next_text && (current_page < np-1 || this.opts.next_show_always)){fragment.append(this.createLink(current_page+1, current_page, {text:this.opts.next_text, classes:"next"}));}$('a', fragment).click(eventHandler);return fragment;}});// Extend jQuery$.fn.pagination = function(maxentries, opts){// Initialize options with default valuesopts = $.extend({items_per_page:1,num_display_entries:4,current_page:0,num_edge_entries:1,link_to:"#",prev_text:"<i></i>上一页",next_text:"下一页 <i></i>",ellipse_text:"...",prev_show_always:true,next_show_always:true,renderer:"defaultRenderer",show_if_single_page:false,load_first_page:false,callback:function(){return false;}},opts||{});var containers = this,renderer, links, current_page;//goto    $(".page-btn").one("click",function(){    var allPage = $(".allPage").text();    //console.log(allPage);      var goPage = $(".page-go input").val() - 1; //跳转页数      if(goPage > -1 && goPage < allPage){opts.current_page = goPage;      $("#Pagination").pagination(allPage,opts);      }else {      $("#Pagination").pagination(allPage);      }      //清空用户跳转页数      $(".page-go input").val("");    });/** * This is the event handling function for the pagination links.  * @param {int} page_id The new page number */function paginationClickHandler(evt){var links, new_current_page = $(evt.target).data('page_id'),continuePropagation = selectPage(new_current_page);if (!continuePropagation) {evt.stopPropagation();}return continuePropagation;}/** * This is a utility function for the internal event handlers.  * It sets the new current page on the pagination container objects,  * generates a new HTMl fragment for the pagination links and calls * the callback function. */function selectPage(new_current_page) {// update the link display of a all containerscontainers.data('current_page', new_current_page);links = renderer.getLinks(new_current_page, paginationClickHandler);containers.empty();links.appendTo(containers);// call the callback and propagate the event if it does not return falsevar continuePropagation = opts.callback(new_current_page, containers);return continuePropagation;}// -----------------------------------// Initialize containers// -----------------------------------                current_page = parseInt(opts.current_page);containers.data('current_page', current_page);// Create a sane value for maxentries and items_per_pagemaxentries = (!maxentries || maxentries < 0)?1:maxentries;opts.items_per_page = (!opts.items_per_page || opts.items_per_page < 0)?1:opts.items_per_page;if(!$.PaginationRenderers[opts.renderer]){throw new ReferenceError("Pagination renderer '" + opts.renderer + "' was not found in jQuery.PaginationRenderers object.");}renderer = new $.PaginationRenderers[opts.renderer](maxentries, opts);// Attach control events to the DOM elementsvar pc = new $.PaginationCalculator(maxentries, opts);var np = pc.numPages();containers.bind('setPage', {numPages:np}, function(evt, page_id) { if(page_id >= 0 && page_id < evt.data.numPages) {selectPage(page_id); return false;}});containers.bind('prevPage', function(evt){var current_page = $(this).data('current_page');if (current_page > 0) {selectPage(current_page - 1);}return false;});containers.bind('nextPage', {numPages:np}, function(evt){var current_page = $(this).data('current_page');if(current_page < evt.data.numPages - 1) {selectPage(current_page + 1);}return false;});// When all initialisation is done, draw the linkslinks = renderer.getLinks(current_page, paginationClickHandler);containers.empty();if(np > 1 || opts.show_if_single_page) {links.appendTo(containers);}// call callback functionif(opts.load_first_page) {opts.callback(current_page, containers);}} // End of $.fn.pagination block})(jQuery);

html页面

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><link rel="stylesheet" href="pagination.css" /><script type="text/javascript" src="jquery.min.js"></script><script type="text/javascript" src="jquery.pagination.js"></script><script type="text/javascript">$(document).ready(function() {$("#Pagination").pagination("15");});</script><style type="text/css>@charset "utf-8";.pages {width:720px;margin:40px auto 0 auto;}.pages #Pagination {  float: left;  overflow: hidden;}.pages #Pagination .pagination {  height: 40px;  text-align: right;  font-family: \u5b8b\u4f53,Arial;}.pages #Pagination .pagination a,.pages #Pagination .pagination span {  float: left;  display: inline;  padding: 11px 13px;  border: 1px solid #e6e6e6;  border-right: none;  background: #f6f6f6;  color: #666666;  font-family: \u5b8b\u4f53,Arial;  font-size: 14px;  cursor: pointer;}.pages #Pagination .pagination .current {  background: #ffac59;  color: #fff;}.pages #Pagination .pagination .prev,.pages #Pagination .pagination .next {  float: left;  padding: 11px 13px;  border: 1px solid #e6e6e6;  background: #f6f6f6;  color: #666666;  cursor: pointer;}.pages #Pagination .pagination .prev i,.pages #Pagination .pagination .next i {  display: inline-block;  width: 4px;  height: 11px;  margin-right: 5px;  background: url(icon.fw.png) no-repeat;}.pages #Pagination .pagination .prev {  border-right: none;}.pages #Pagination .pagination .prev i {  background-position: -144px -1px;  *background-position: -144px -4px;}.pages #Pagination .pagination .next i {  background-position: -156px -1px;  *background-position: -156px -4px;}.pages #Pagination .pagination .pagination-break {  padding: 11px 5px;  border: none;  border-left: 1px solid #e6e6e6;  background: none;  cursor: default;}.pages .searchPage {  float: left;  padding: 8px 0;}.pages .searchPage .page-sum {  padding: 11px 13px;  color: #999999;  font-family: \u5b8b\u4f53,Arial;  font-size: 14px;}.pages .searchPage .page-go {  padding: 8px 0;  color: #999999;  font-family: \u5b8b\u4f53,Arial;  font-size: 14px;  padding: 10px 0\9;  *padding: 6px 0;}.pages .searchPage .page-go input {  width: 21px;  height: 20px;  margin: 0 5px;  padding-left: 5px;  border: 1px solid #e4e4e4;}.pages .searchPage .page-btn {  margin: 9px 0 5px 5px;  padding: 2px 5px;  background: #ffac59;  border-radius: 2px;  color: #ffffff;  font-family: Arial, 'Microsoft YaHei';  font-size: 14px;  text-decoration: none;}<style></head><body>    <div class="pages">        <div id="Pagination">        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p>        <p>sfsuiew</p><p>sfsuiew</p>                <p>sfsuiew</p>        </div>        <div class="searchPage">          <span class="page-sum">共<strong class="allPage">15</strong>页</span>          <span class="page-go">跳转<input type="text">页</span>          <a href="javascript:;" class="page-btn">GO</a>        </div>    </div></div></body></html>