专栏目标
在vue和element UI联合技术栈的操控下,本专栏提供行之有效的源代码示例和信息点介绍,做到灵活运用。
(1)提供vue2的一些基本操作:安装、引用,模板使用,computed,watch,生命周期(beforeCreate,created,beforeMount,mounted, beforeUpdate,updated, beforeDestroy,destroyed,activated,deactivated,errorCaptured,components,)、 $root , $parent , $children , $slots , $refs , props, $emit , eventbus ,provide / inject, Vue.observable, $listeners, $attrs, $nextTick , v-for, v-if, v-else,v-else-if,v-on,v-pre,v-cloak,v-once,v-model, v-html, v-text, keep-alive,slot-scope, filters, v-bind,.stop, .native, directives,mixin,render,国际化,Vue Router等
(2)提供element UI的经典操作:安装,引用,国际化,el-row,el-col,el-button,el-link,el-radio,el-checkbox ,el-input,el-select, el-cascader, el-input-number, el-switch,el-slider, el-time-picker, el-date-picker, el-upload, el-rate, el-color-picker, el-transfer, el-form, el-table, el-tree, el-pagination,el-badge,el-avatar,el-skeleton, el-empty, el-descriptions, el-result, el-statistic, el-alert, v-loading, $message, $alert, $prompt, $confirm , $notify, el-breadcrumb, el-page-header,el-tabs ,el-dropdown,el-steps,el-dialog, el-tooltip, el-popover, el-popconfirm, el-card, el-carousel, el-collapse, el-timeline, el-divider, el-calendar, el-image, el-backtop,v-infinite-scroll, el-drawer等
本文章目录
- 专栏目标
- 需求背景
- 示例效果
- 示例源代码(共105行)
- 安装引用依赖
- API参考
需求背景
在vue的项目开发中,我们会遇到加载excel或者csv等情形,这个示例展示了这个需求。上传一个excel文件,通过解析,生成数组,然后再列表中将内容展示出来。
示例效果
示例源代码(共105行)
/*
* @Author: 大剑师兰特(xiaozhuanlan),还是大剑师兰特(CSDN)
* @此源代码版权归大剑师兰特所有,可供学习或商业项目中借鉴,未经授权,不得重复地发表到博客、论坛,问答,git等公共空间或网站中。
* @Email: 2909222303@qq.com
* @weixin: gis-dajianshi
* @First published in CSDN
* @First published time: 2022-09-07
*/<template><div class="container"><div class="top"><h3>vue上传解析excel文件,输出列表内容 </h3><div class="author">大剑师兰特, 还是大剑师兰特,gis-dajianshi</div></div><h4><el-upload ref="upload" action="/" :show-file-list="false" :on-change="importExcel" :auto-upload="false"><el-button slot="trigger" icon="el-icon-upload" size="small" type="success">上传文件</el-button></el-upload></h4><div style="width: 80%; margin:10px auto"><el-table :data="xlsxData" style="width: 100%"><el-table-column prop="name" label="姓名" width="180"></el-table-column><el-table-column prop="class" label="班级" width="180"></el-table-column><el-table-column prop="score" label="成绩"></el-table-column><el-table-column prop="level" label="等级"></el-table-column></el-table></div></div>
</template><script>import * as XLSX from 'xlsx'export default {data() {return {wb: null,xlsxData: [],}},methods: {importExcel(file) {// let filefile = file.files[0] // 使用传统的input方法需要加上这一步 const types = file.name.split('.')[1]const fileType = ['xlsx', 'xlc', 'xlm', 'xls', 'xlt', 'xlw', 'csv'].some(item => item === types)if (!fileType) {alert('格式错误!请重新选择')return}this.fileExchange(file).then(tabJson => {if (tabJson && tabJson.length > 0) {this.xlsxData = tabJson[0].sheetconsole.log(this.xlsxData)// xlsxJson就是解析出来的json数据,数据格式如下 // [ // { // sheetName: sheet1 // sheet: sheetData // } // ] }})},fileExchange(file) {return new Promise(function(resolve, reject) {const reader = new FileReader()reader.onload = function(e) {const data = e.target.resultthis.wb = XLSX.read(data, {type: 'binary'})const result = []this.wb.SheetNames.forEach((sheetName) => {result.push({sheetName: sheetName,sheet: XLSX.utils.sheet_to_json(this.wb.Sheets[sheetName])})})resolve(result)}reader.readAsBinaryString(file.raw)// reader.readAsBinaryString(file) // 传统input方法 })}},}
</script>
<style scoped>.container {width: 1000px;height: 580px;margin: 50px auto;border: 1px solid green;}.top {margin: 0 auto 30px;padding: 10px 0;background: #23B486;color: #fff;}</style>
安装引用依赖
// 安装插件
npm install xlsx --save
// 在vue中导入XLSX
import * as XLSX from 'xlsx'
API参考
https://www.npmjs.com/package/xlsx