前言
之前写个js导出excel的方法，但是发现已经过时了，最近用了一下新的导出方式，可以用，现在分享一下。vue,react都可以用。原理就是通过table导出excel
方法一：
通过csv的方式导出
exportExcel() { // 前端导出excel
const types = { 'DYNAMIC': '动态创意', 'STATIC': '静态创意', 'VIDEO': '视频创意', 'MATERIAL': '素材创意' }
let currentGroup = ''
let exportData = this.showList.map(item => {
if (item.currentGroup) {
currentGroup = item.currentGroup
}
return {
creativeId: item.creativeId,
creativeName: item.creativeName,
description: item.description&& item.description.replace(/[\n\t\r，]/g,";"),// 把里面的回车和中文逗号换成分号
creativeSize: `${item.creativeWidth}*${item.creativeHeight}`,
creativeTime: this.getTime(item.startDate) + ' - ' + this.getTime(item.endDate),
creativesourceTyle: this.showType(item.creativeSource),
creativeTypename: types[item.creativeType]
}
})
// console.log(exportData)
let str = '创意ID,创意名称,创意描述,创意尺寸,创意时间,创意来源,创意类型\n'
for (let i = 0; i < exportData.length; i++) {
for (let item in exportData[i]) {
str += `${exportData[i][item] + '\t'},`
}
str += '\n'
}
// encodeURIComponent解决中文乱码
let uri = 'data:text/csv;charset=utf-8,\ufeff' + encodeURIComponent(str)
// 通过创建a标签实现
var link = document.createElement('a')
link.href = uri
// 对下载的文件命名
let nowTime = `${new Date().getFullYear()}${(new Date().getMonth() + 1)}${new Date().getDate()}`
link.download = `${currentGroup}-${nowTime}.csv`
document.body.appendChild(link)
link.click()
document.body.removeChild(link)
},注：getTime（）和showType（）都是转换函数，和主流程不搭噶。showList是数组，就是要导出的字段，可以针对导出的字段做过滤
另外需要注意的是，字段里面不能有中文逗号，换行等，可以用replace去除掉
方法二：
base64(s) { return window.btoa(unescape(encodeURIComponent(s))) },
exportExcel() { // 前端导出excel
console.log(this.showList)
let str = '<tr><td>代理名称</td><td>allianceid</td><td>attachmentFileId</td>'
for (let i = 0; i < this.showList.length; i++) {
str += '<tr>'
for (let item in this.showList[i]) {
// 增加\t为了不让表格显示科学计数法或者其他格式
str += `<td>${this.showList[i][item] + '\t'}</td>`
}
str += '</tr>'
}
let worksheet = 'Sheet1'
let uri = 'data:application/vnd.ms-excel;base64,'
// 下载的表格模板数据
let template = `<html xmlns:o="urn:schemas-microsoft-com:office:office"
xmlns:x="urn:schemas-microsoft-com:office:excel"
xmlns="http://www.w3.org/TR/REC-html40">
<head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet>
<x:Name>${worksheet}</x:Name>
<x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet>
</x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]-->
</head><body><table>${str}</table></body></html>`
// 下载模板
window.location.href = uri + this.base64(template)
},//showList是table数据以上是我最近用过的2中前端导出excel的方法。
xlsx 库
<script
type="text/javascript"
src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.13.1/xlsx.full.min.js"
></script>
<script>
function ExportData()
{
filename='reports.xlsx';
data=[{Market: "IN", New Arrivals: "6", Upcoming Appointments: "2", Pending - 1st Attempt: "4"},
{Market: "KS/MO", New Arrivals: "4", Upcoming Appointments: "4", Pending - 1st Attempt: "2"},
{Market: "KS/MO", New Arrivals: "4", Upcoming Appointments: "4", Pending - 1st Attempt: "2"},
{Market: "KS/MO", New Arrivals: "4", Upcoming Appointments: "4", Pending - 1st Attempt: "2"}]
var ws = XLSX.utils.json_to_sheet(data);
var wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, "People");
XLSX.writeFile(wb,filename);
}
</script>npm实现
import { read, utils, writeFile } from 'xlsx';
const handleExport = () => {
const data = [
['orderId', 'orderName', 'orderPrice', 'orderCount', 'orderTotalPrice', 'orderStatus'],
];
orders.forEach((order) => {
data.push([
order.orderId,
order.orderName,
order.orderPrice,
order.orderCount,
order.orderTotalPrice,
order.orderStatus,
]);
]);
});
const fileName = 'output.xlsx';
const ws = utils.json_to_sheet(data);
const wb = utils.book_new();
utils.book_append_sheet(wb, ws, 'output');
writeFile(wb, fileName);
}