本文详细解析了基于Vue.js框架的分页组件实现方案。通过封装核心算法，动态计算页码显示范围，并结合Ajax获取后端数据，实现了高效的前后端交互。文章提供了完整的HTML结构、Vue.js逻辑代码及后端数据格式说明，帮助开发者快速掌握分页功能的开发要点。
Vue.js分页组件实现概述
分页功能在前端与后端的开发中均具有一定挑战性，本文旨在梳理并分享一种基于Vue.js框架的解决方案，该思路同样可参考应用于Angular等框架。
相关封装组件的下载地址为：vue.js翻页组件。
组件运行效果如下截图所示：
分页组件核心逻辑与数据交互
整体实现逻辑如下：当用户点击页码时，前端通过Ajax向后端请求数据，后端返回的数据结构包含records（当前页查询到的记录列表）、totalRecords（总记录数，示例中为121）、currentPage（当前页码）、totalPage（总页数）以及size（每页显示数量）。随后，利用封装好的算法assemblePageTurnerParams计算并确定前端页面应展示的具体页码范围。
该实现方案在细节处理上较为周全：当页码数量较多时，中间部分以省略号显示；当页码数量较少时，则完整展示所有页码，确保界面简洁且信息完整。
Vue.js分页组件源码解析
具体实现源码如下所示：
HTML结构部分：
<!DOCTYPE html>
<html>
<head>
<title>vue翻页</title>
<link rel="stylesheet" type="text/css" href="css/pageTurner.css">
</head>
<body class="myApp">
<div class="wrapper">
<p class="records">当前展示 {{ pageTurner.records }} 条记录，共{{ pageTurner.totalRecords }} 条记录</p>
<ul class="page-turner-container clearfix">
<li v-on:click="queryData(pageTurner.currentPage-1)">«</li>
<!-- 首页 -->
<li v-on:click="queryData(1)" :class="pageTurner.currentPage == 1 ? 'current-page' : '' ">1</li>
<li v-if="pageTurner.currentPage>4 && pageTurner.totalPage>7" class="omit">...</li>
<!-- 展示页 -->
<li v-for="page in pageTurner.displayPageList" :class="page == pageTurner.currentPage ? 'current-page' : '' " v-on:click="queryData(page)">{{ page }}</li>
<!-- 尾页 -->
<li v-if="pageTurner.currentPage<pageTurner.totalPage-3 && pageTurner.totalPage>7 " class="omit" >...</li>
<li v-on:click="queryData(pageTurner.totalPage)" :class="pageTurner.currentPage == pageTurner.totalPage ? 'current-page' : '' " v-if="pageTurner.totalPage != 1 && pageTurner.totalPage>6">{{ pageTurner.totalPage }}</li>
<li v-on:click="queryData(pageTurner.currentPage+1)">»</li>
</ul>
</div>
<script type="text/javascript" src="lib/vue.js"></script>
<script type="text/javascript" src="pageTurner.js"></script>
</body>
</html>
Vue.js逻辑部分：
//ajax返回json
//{"status":true,"msg":"ok","data":{"accidentList":[{"token":"Mw==","accidentStatus":"triggered","endTime":"------------","continueTime":"------------","accidentStatusFriend":"\u5f85\u63a5\u624b","id":"3","enId":"11","currentLevelNum":"0","curDuty":[{"id":"4420","name":"zhaopeng1","type":"member"}],"curPolicyId":"2","createTime":"2016-08-24 15:43:10","description":"{\"level\":1,\"genre\":2,\"from\":\"10.103.11.21\",\"info\":\"XX\u786c\u4ef6Fail\",\"detail\":\"XX\u786c\u4ef6Fail\u53ef\u80fd\u7684\u539f\u56e0\u662fXXX\uff0c\u5efa\u8baeXXX\"}","level":1,"genre":2,"from":"10.103.11.21","info":"XX\u786c\u4ef6Fail","serviceName":"ceshi"},{"token":"Mg==","accidentStatus":"triggered","endTime":"------------","continueTime":"------------","accidentStatusFriend":"\u5f85\u63a5\u624b","id":"2","enId":"10","currentLevelNum":"0","curDuty":[{"id":"4420","name":"zhaopeng1","type":"member"}],"curPolicyId":"2","createTime":"2016-08-24 15:43:07","description":"{\"level\":1,\"genre\":2,\"from\":\"10.103.11.21\",\"info\":\"XX\u786c\u4ef6Fail\",\"detail\":\"XX\u786c\u4ef6Fail\u53ef\u80fd\u7684\u539f\u56e0\u662fXXX\uff0c\u5efa\u8baeXXX\"}","level":1,"genre":2,"from":"10.103.11.21","info":"XX\u786c\u4ef6Fail","serviceName":"ceshi"},{"token":"MQ==","accidentStatus":"triggered","endTime":"------------","continueTime":"------------","accidentStatusFriend":"\u5f85\u63a5\u624b","id":"1","enId":"9","currentLevelNum":"0","curDuty":[{"id":"4420","name":"zhaopeng1","type":"member"}],"curPolicyId":"1","createTime":"2016-08-24 15:31:59","description":"{\"level\":1,\"genre\":2,\"from\":\"10.103.11.21\",\"info\":\"XX\u786c\u4ef6Fail\",\"detail\":\"XX\u786c\u4ef6Fail\u53ef\u80fd\u7684\u539f\u56e0\u662fXXX\uff0c\u5efa\u8baeXXX\"}","level":1,"genre":2,"from":"10.103.11.21","info":"XX\u786c\u4ef6Fail","serviceName":"nimi"}],"pageParams":{"records":"12","totalRecords":"121","currentPage":"2","totalPage":"18","size":12}}}
//前4个属性是后台返回的，前端计算displayPageList展示列表
var pageTurnerDefaultParams = {
records: 9,
totalRecords: 121,
currentPage: 1,
totalPage: 1,
size: 12,
displayPageList: [3,4,5,6,7]
};
var assemblePageTurnerParams = function(records,totalRecords,currentPage,totalPage,size){
var records = records;
var totalRecords = totalRecords;
var currentPage = currentPage;
var totalPage = totalPage;
var size = size;
var displayPageList = [];
var firstPage = ''
//第一页时 翻上页
if(currentPage<1){
console.log('已经是第一页了！！')
currentPage = 1
}
//最后一个 翻下页
else if(currentPage>totalPage){
console.log('已经是最后一页了！！')
currentPage = totalPage
}
//总页数小于7页
if (totalPage<7){
console.log('总页数小于7页！')
//console.log('总页数：' + totalPage)
for (var j=2; j<=totalPage; j++){
//console.log(j)
displayPageList.push(j)
}
}
//总页数大于等于7页
else{
console.log('总页数大于等于7页！')
if (currentPage<5){
console.log('点击的页面小于5')
firstPage = 2
}
// else if (currentPage<6){
// console.log('点击的页面小于6')
// firstPage = 3
// }
else if(currentPage>totalPage-3){
console.log('点击的页码大于总页码-3了')
firstPage = totalPage - 5
}
else{
firstPage = currentPage-2;
}
for (var i=firstPage; i<firstPage+5; i++){
displayPageList.push(i)
}
}
var params = {
records: records,
totalRecords: totalRecords,
currentPage: currentPage,
totalPage: totalPage,
size: size,
displayPageList: displayPageList
}
return params
};
var pageTurnerController = new Vue({
el: '.myApp',
data: {
pageTurner: pageTurnerDefaultParams
},
ready: function() {
//首次查询时 传递查询第一页和pageSize
this.queryData(1)
},
methods: {
queryData:function(page){
//do ajax here
//从后台获取到records totalRecords totalPage size
//用assemble方法计算出所有翻页相关的参数
//assemblePageTurnerParams 的4个参数 records totalRecords page totalPage pageSize
this.pageTurner = assemblePageTurnerParams(11,121,page,10,12)
console.log(JSON.stringify(this.pageTurner))
console.log('跳转到' + this.pageTurner.currentPage)
}
}
});本文内容已整理收录至《Vue.js前端组件学习教程》，欢迎读者查阅学习。
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