前言：
由于项目需要实现分页效果，上jQuery插件库找了下，但是木有找到自己想要的效果，于是自己封装了个分页组件。
思路：
主要是初始化时基于原型建立的分页模板然后绑定动态事件并实现刷新DOM的分页效果。
1.page.init.css
1 @charset "utf=8"; 2 *{ 3 box-sizing: border-box; 4 padding: 0; 5 margin: 0; 6 } 7 .page{ 8 font-size: 13px; 9 text-align: right;10 }11 .page .page_to{12 display: inline-block;13 max-width: 250px;14 }15 .page .page_to li{16 display: inline-block;17 width: auto;18 height: auto;19 border: 1px solid #ddd;20 padding:5px 10px;21 border-left-width: 0;22 color: #323232;23 cursor: pointer;24 }25 .page .page_to li.page_hide{26 display: none;27 }28 .page .page_to li:hover{29 color: #32C2CD;30 background-color: #f4f4f4;31 border-color: #DDDDDD;32 }33 .page .page_to li:first-child{34 border-left-width: 1px;35 }36 .page .page_jump{37 display: inline-block;38 width: 180px;39 }40 .page .page_jump input.page_jump_input{41 width: 52px;42 height: 28px;43 text-align: center;44 text-decoration: none;45 background-color: #fff;46 border: 1px solid #ddd;47 margin:0 4px;48 }49 .page .page_jump input.page_jump_btn{50 display: inline-block;51 padding: 7px 20px;52 margin-left: 5px;53 font-size: 14px;54 font-weight: 400;55 line-height: 1.42857143;56 text-align: center;57 white-space: nowrap;58 vertical-align: middle;59 -ms-touch-action: manipulation;60 touch-action: manipulation;61 cursor: pointer;62 -webkit-user-select: none;63 -moz-user-select: none;64 -ms-user-select: none;65 user-select: none;66 border: 1px solid transparent;67 border-radius: 4px;68 background-color: #00BB9C;69 color: #FFFFFF;70 font-weight: bold;71 }登录后复制
2.pageInit.js
1 /** 2 * Created: 2017/6/20. 3 * author: Aaron 4 * address:
5 */ 6 (function($,window,undefined){ 7 8 var curPage='', 9 //跳转是否有值 10 jumpVal='', 11 //从DOM中重新获取数据总数/总页数 12 lists='', 13 totals='', 14 //是否返回值 15 isTrue=false; 16 17 var Page=function(opts){ 18 this.settings= $.extend({},Page.defaults,opts); 19 curPage=this.settings.initPage; 20 totals=this.settings.totalPages; 21 jumpVal=this.settings.inputVal; 22 this.init(); 23 }; 24 25 //默认配置 26 Page.defaults={ 27 container:'.page', 28 setPos:'body', 29 totalPages:null, 30 totalLists:null, 31 initPage:1, 32 inputVal:1, 33 callBack:null 34 }; 35 36 Page.prototype={ 37 init:function(){ 38 this.create(); 39 }, 40 create:function(){ 41 var _template='<div class="page">'+ 42 '<span class="page_details">'+ 43 '共<span class="page_num">'+this.settings.totalLists+'</span>条记录，'+ 44 '第<span class="page_current">'+curPage+'</span>/'+ 45 '<span class="page_size">'+this.settings.totalPages+'</span>页'+ 46 '</span>'+ 47 '<div class="page_to">'+ 48 '<ul class="flex_parent">'+ 49 '<li class="page_first flex_child">首页</li>'+ 50 '<li class="page_pre page_hide flex_child">« 上一页</li>'+ 51 '<li class="page_next flex_child">下一页 »</li>'+ 52 '<li class="page_last flex_child">末页</li>'+ 53 '</ul>'+ 54 '</div>'+ 55 '<div class="page_jump">'+ 56 '<span>第：<input type="number" class="page_jump_input" value="'+this.settings.inputVal+'">页</span>'+ 57 '<input type="button" class="page_jump_btn" value="Go">'+ 58 '</div>'+ 59 '</div>'; 60 $(this.settings.setPos).append(_template); 61 this.refreshDom(); 62 this.bindEvent(); 63 }, 64 bindEvent:function(){ 65 var _this=this; 66 //跳转首页 67 $(this.settings.container).on("click",".page_first",function(){ 68 69 lists=$(_this.settings.container).find(".page_num").text(); 70 totals=$(_this.settings.container).find(".page_size").text(); 71 72 if($.isFunction(_this.settings.callBack)){ 73 curPage=1; 74 isTrue=_this.settings.callBack(1); 75 if(isTrue){ 76 _this.refreshDom(); 77 $(_this.settings.container).find(".page_current").text(1); 78 $(_this.settings.container).find(".page_jump_input").val(curPage); 79 } 80 } 81 }); 82 //跳转上一页 83 $(this.settings.container).on("click",".page_pre",function(){ 84 85 lists=$(_this.settings.container).find(".page_num").text(); 86 totals=$(_this.settings.container).find(".page_size").text(); 87 88 if($.isFunction(_this.settings.callBack)){ 89 if(curPage>1){ 90 curPage=curPage-1; 91 isTrue=_this.settings.callBack(curPage); 92 if(isTrue){ 93 _this.refreshDom(); 94 $(_this.settings.container).find(".page_current").text(curPage); 95 $(_this.settings.container).find(".page_jump_input").val(curPage); 96 } 97 } 98 } 99 });100 //跳转下一页101 $(this.settings.container).on("click",".page_next",function(){102 103 lists=$(_this.settings.container).find(".page_num").text();104 totals=$(_this.settings.container).find(".page_size").text();105 106 107 if($.isFunction(_this.settings.callBack)){108 if(curPage<totals){109 curPage=curPage+1;110 isTrue=_this.settings.callBack(curPage);111 if(isTrue){112 _this.refreshDom();113 $(_this.settings.container).find(".page_current").text(curPage);114 $(_this.settings.container).find(".page_jump_input").val(curPage);115 }116 }117 }118 });119 //跳转末页120 $(this.settings.container).on("click",".page_last",function(){121 122 lists=$(_this.settings.container).find(".page_num").text();123 totals=$(_this.settings.container).find(".page_size").text();124 125 if($.isFunction(_this.settings.callBack)){126 curPage=totals;127 isTrue=_this.settings.callBack(curPage);128 if(isTrue){129 _this.refreshDom();130 $(_this.settings.container).find(".page_current").text(totals);131 $(_this.settings.container).find(".page_jump_input").val(curPage);132 }133 }134 });135 //Go跳转136 $(this.settings.container).on("click",".page_jump_btn",function(){137 138 lists=$(_this.settings.container).find(".page_num").text();139 totals=$(_this.settings.container).find(".page_size").text();140 141 if($.isFunction(_this.settings.callBack)){142 jumpVal=Number($(_this.settings.container).find("input.page_jump_input").val());143 console.log('跳转的页数：'+jumpVal+';跳转之前的页数：'+curPage);144 if(jumpVal>=1 && jumpVal <=totals){145 curPage=jumpVal;146 isTrue=_this.settings.callBack(curPage);147 if(isTrue){148 _this.refreshDom();149 $(_this.settings.container).find(".page_current").text(curPage);150 }151 }else{152 jumpVal=curPage;153 }154 }155 });156 },157 refreshDom:function(){158 $(this.settings.container).find("li.flex_child").removeClass("page_hide");159 if(Number(totals)==1){160 $(this.settings.container).find(".page_pre").addClass("page_hide");161 $(this.settings.container).find(".page_next").addClass("page_hide");162 }163 else if(Number(totals)==2){164 if(Number(curPage)==1){165 $(this.settings.container).find(".page_pre").addClass("page_hide");166 }else{167 $(this.settings.container).find(".page_next").addClass("page_hide");168 }169 }170 else if(Number(curPage)==1 && Number(totals)>2){171 $(this.settings.container).find(".page_pre").addClass("page_hide");172 }173 else if(Number(curPage)==Number(totals) && Number(totals)>2){174 $(this.settings.container).find(".page_next").addClass("page_hide");175 }176 }177 };178 179 var pageInit=function(opts){180 return new Page(opts);181 };182 183 window.pageInit= $.pageInit=pageInit;184 185 })(jQuery,window,undefined);登录后复制
3.组件调用
通过 window.pageInit= $.pageInit=pageInit 可完成分页组件初始化。
暴露出来的接口分别为：
1.container：DOM的容器，默认.page
2.setPos：DOM放置的HTML位置，默认body
3.totalPages：默认的页数，必填，默认null
4.totalLists：默认的数据总数，必填，默认null
5.initPage：当前页,默认第一页
6.inputVal：跳转页，默认第一页
7.callBack：执行的回调函数，必填，默认null
1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title>基于jQuery封装的分页组件</title> 6 <link rel="stylesheet" href="css/page.init.css?1.1.11"> 7 </head> 8 <body> 9 <script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.js?1.1.11"></script>10 <script src="js/pageInit.js?1.1.11"></script>11 <script>12 $.pageInit(13 {14 container:'.page',//容器：默认page15 //setPos:'body',//放置位置：默认body16 totalPages:10,//总页数：必填17 totalLists:100,//数据总数：必填18 initPage:1,//初始页码：默认119 inputVal:1,//设置跳转的input值：默认120 //要执行的函数：默认null，必须为fn且返回true则可执行分页，false则不执行21 callBack:function(n){22 var flag=true;23 console.log(n);24 return flag;25 }26 }27 );28 </script>29 </body>30 </html>登录后复制
效果：
通过callBack接口，添加自己所需要执行的function函数，并且需要return true时才回执行动态的DOM渲染。
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