jQuery封裝的分頁組件詳解

由於專案需要達到分頁效果，上jQuery外掛程式庫找了下，但是木有找到自己想要的效果，於是自己封裝了個分頁元件。本文主要為大家詳細介紹了基於jQuery封裝的分頁組件，具有一定的參考價值，有興趣的小夥伴們可以參考一下，希望能幫助大家。

想法：

主要是初始化時基於原型建立的分頁範本然後綁定動態事件並實現刷新DOM的分頁效果。

1.page.init.css

#

@charset "utf=8";
*{
 box-sizing: border-box;
 padding: 0;
 margin: 0;
}
.page{
 font-size: 13px;
 text-align: right;
}
.page .page_to{
 display: inline-block;
 max-width: 250px;
}
.page .page_to li{
 display: inline-block;
 width: auto;
 height: auto;
 border: 1px solid #ddd;
 padding:5px 10px;
 border-left-width: 0;
 color: #323232;
 cursor: pointer;
}
.page .page_to li.page_hide{
 display: none;
}
.page .page_to li:hover{
 color: #32C2CD;
 background-color: #f4f4f4;
 border-color: #DDDDDD;
}
.page .page_to li:first-child{
 border-left-width: 1px;
}
.page .page_jump{
 display: inline-block;
 width: 180px;
}
.page .page_jump input.page_jump_input{
 width: 52px;
 height: 28px;
 text-align: center;
 text-decoration: none;
 background-color: #fff;
 border: 1px solid #ddd;
 margin:0 4px;
}
.page .page_jump input.page_jump_btn{
 display: inline-block;
 padding: 7px 20px;
 margin-left: 5px;
 font-size: 14px;
 font-weight: 400;
 line-height: 1.42857143;
 text-align: center;
 white-space: nowrap;
 vertical-align: middle;
 -ms-touch-action: manipulation;
 touch-action: manipulation;
 cursor: pointer;
 -webkit-user-select: none;
 -moz-user-select: none;
 -ms-user-select: none;
 user-select: none;
 border: 1px solid transparent;
 border-radius: 4px;
 background-color: #00BB9C;
 color: #FFFFFF;
 font-weight: bold;
}

2.pageInit.js

/**
 * Created: 2017/6/20.
 * author: Aaron
 * address: http://www.cnblogs.com/aaron-pan/
 */
(function($,window,undefined){

 var curPage='',
 //跳转是否有值
 jumpVal='',
 //从DOM中重新获取数据总数/总页数
 lists='',
 totals='',
 //是否返回值
 isTrue=false;

 var Page=function(opts){
 this.settings= $.extend({},Page.defaults,opts);
 curPage=this.settings.initPage;
 totals=this.settings.totalPages;
 jumpVal=this.settings.inputVal;
 this.init();
 };

 //默认配置
 Page.defaults={
 container:'.page',
 setPos:'body',
 totalPages:null,
 totalLists:null,
 initPage:1,
 inputVal:1,
 callBack:null
 };

 Page.prototype={
 init:function(){
  this.create();
 },
 create:function(){
  var _template=&#39;<p class="page">&#39;+
  &#39;<span class="page_details">&#39;+
  &#39;共<span class="page_num">&#39;+this.settings.totalLists+&#39;</span>条记录，&#39;+
  &#39;第<span class="page_current">&#39;+curPage+&#39;</span>/&#39;+
  &#39;<span class="page_size">&#39;+this.settings.totalPages+&#39;</span>页&#39;+
  &#39;</span>&#39;+
  &#39;<p class="page_to">&#39;+
  &#39;<ul class="flex_parent">&#39;+
  &#39;<li class="page_first flex_child">首页</li>&#39;+
  &#39;<li class="page_pre page_hide flex_child">« 上一页</li>&#39;+
  &#39;<li class="page_next flex_child">下一页 »</li>&#39;+
  &#39;<li class="page_last flex_child">末页</li>&#39;+
  &#39;</ul>&#39;+
  &#39;</p>&#39;+
  &#39;<p class="page_jump">&#39;+
  &#39;<span>第：<input type="number" class="page_jump_input" value="&#39;+this.settings.inputVal+&#39;">页</span>&#39;+
  &#39;<input type="button" class="page_jump_btn" value="Go">&#39;+
  &#39;</p>&#39;+
  &#39;</p>&#39;;
  $(this.settings.setPos).append(_template);
  this.refreshDom();
  this.bindEvent();
 },
 bindEvent:function(){
  var _this=this;
  //跳转首页
  $(this.settings.container).on("click",".page_first",function(){

  lists=$(_this.settings.container).find(".page_num").text();
  totals=$(_this.settings.container).find(".page_size").text();

  if($.isFunction(_this.settings.callBack)){
   curPage=1;
   isTrue=_this.settings.callBack(1);
   if(isTrue){
   _this.refreshDom();
   $(_this.settings.container).find(".page_current").text(1);
   $(_this.settings.container).find(".page_jump_input").val(curPage);
   }
  }
  });
  //跳转上一页
  $(this.settings.container).on("click",".page_pre",function(){

  lists=$(_this.settings.container).find(".page_num").text();
  totals=$(_this.settings.container).find(".page_size").text();

  if($.isFunction(_this.settings.callBack)){
   if(curPage>1){
   curPage=curPage-1;
   isTrue=_this.settings.callBack(curPage);
   if(isTrue){
    _this.refreshDom();
    $(_this.settings.container).find(".page_current").text(curPage);
    $(_this.settings.container).find(".page_jump_input").val(curPage);
   }
   }
  }
  });
  //跳转下一页
  $(this.settings.container).on("click",".page_next",function(){

  lists=$(_this.settings.container).find(".page_num").text();
  totals=$(_this.settings.container).find(".page_size").text();


  if($.isFunction(_this.settings.callBack)){
   if(curPage<totals){
   curPage=curPage+1;
   isTrue=_this.settings.callBack(curPage);
   if(isTrue){
    _this.refreshDom();
    $(_this.settings.container).find(".page_current").text(curPage);
    $(_this.settings.container).find(".page_jump_input").val(curPage);
   }
   }
  }
  });
  //跳转末页
  $(this.settings.container).on("click",".page_last",function(){

  lists=$(_this.settings.container).find(".page_num").text();
  totals=$(_this.settings.container).find(".page_size").text();

  if($.isFunction(_this.settings.callBack)){
   curPage=totals;
   isTrue=_this.settings.callBack(curPage);
   if(isTrue){
   _this.refreshDom();
   $(_this.settings.container).find(".page_current").text(totals);
   $(_this.settings.container).find(".page_jump_input").val(curPage);
   }
  }
  });
  //Go跳转
  $(this.settings.container).on("click",".page_jump_btn",function(){

  lists=$(_this.settings.container).find(".page_num").text();
  totals=$(_this.settings.container).find(".page_size").text();

  if($.isFunction(_this.settings.callBack)){
   jumpVal=Number($(_this.settings.container).find("input.page_jump_input").val());
   console.log(&#39;跳转的页数：&#39;+jumpVal+&#39;;跳转之前的页数：&#39;+curPage);
   if(jumpVal>=1 && jumpVal <=totals){
   curPage=jumpVal;
   isTrue=_this.settings.callBack(curPage);
   if(isTrue){
    _this.refreshDom();
    $(_this.settings.container).find(".page_current").text(curPage);
   }
   }else{
   jumpVal=curPage;
   }
  }
  });
 },
 refreshDom:function(){
  $(this.settings.container).find("li.flex_child").removeClass("page_hide");
  if(Number(totals)==1){
  $(this.settings.container).find(".page_pre").addClass("page_hide");
  $(this.settings.container).find(".page_next").addClass("page_hide");
  }
  else if(Number(totals)==2){
  if(Number(curPage)==1){
   $(this.settings.container).find(".page_pre").addClass("page_hide");
  }else{
   $(this.settings.container).find(".page_next").addClass("page_hide");
  }
  }
  else if(Number(curPage)==1 && Number(totals)>2){
  $(this.settings.container).find(".page_pre").addClass("page_hide");
  }
  else if(Number(curPage)==Number(totals) && Number(totals)>2){
  $(this.settings.container).find(".page_next").addClass("page_hide");
  }
 }
 };

 var pageInit=function(opts){
 return new Page(opts);
 };

 window.pageInit= $.pageInit=pageInit;

})(jQuery,window,undefined);

3.元件呼叫

透過window.pageInit= $.pageInit=pageInit 可完成分頁元件初始化。

暴露出來的介面分別為：

1.container：DOM的容器，預設.page

2.setPos：DOM放置的HTML位置，預設body

3.totalPages：預設的頁數，必填，預設null

4.totalLists：預設的資料總數，必填，預設null

5.initPage：目前頁,預設第一頁

6.inputVal：跳轉頁，預設第一頁

7.callBack：執行的回呼函數，必填，預設null

<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title>基于jQuery封装的分页组件</title>
 <link rel="stylesheet" href="css/page.init.css">
</head>
<body>
<script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.js"></script>
<script src="js/pageInit.js"></script>
<script>
 $.pageInit(
  {
  container:&#39;.page&#39;,//容器：默认page
  //setPos:&#39;body&#39;,//放置位置：默认body
  totalPages:10,//总页数：必填
  totalLists:100,//数据总数：必填
  initPage:1,//初始页码：默认1
  inputVal:1,//设置跳转的input值：默认1
  //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
  callBack:function(n){
   var flag=true;
   console.log(n);
   return flag;
  }
  }
 );
</script>
</body>
</html>

效果：

透過callBack接口，加入自己所需要執行的function函數，並且需要return true時才回執行動態的DOM渲染。

更多精彩內容請點選：jquery分頁功能彙總進行學習。

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