1.安装 xlsx 库

npm install xlsx

2.创建导出函数

src/utils/excelUtils.js

import * as XLSX from 'xlsx';const exportToExcel = (fileName, datas, sheetNames) => {// 创建工作簿const wb = XLSX.utils.book_new()for (let i = 0; i < datas.length; i++) {let data = datas[i];let sheetName = sheetNames[i];// 创建工作表let ws = XLSX.utils.json_to_sheet(data)// 将工作表放入工作簿中XLSX.utils.book_append_sheet(wb, ws, sheetName)}// 生成文件并下载XLSX.writeFile(wb, fileName)
}export default exportToExcel;

3.在组件中调用导出函数

<template><div><el-button  @click="exportExcel">导出 Excel</el-button></div></template><script lang="ts">import  exportToExcel  from '@/utils/excelUtils';const exportExcel = () => {const data2 = [{ name: 'Alice', age: 25, occupation: 'Engineer' },{ name: 'Bob', age: 30, occupation: 'Designer' },{ name: 'Carol', age: 28, occupation: 'Developer' }];const data3 = [{ name2: 'Alice', age: 27, occupation: 'Engineer' },{ name2: 'Bob', age: 31, occupation: 'Designer' },{ name2: 'Carol', age: 29, occupation: 'Developer' }];exportToExcel('user_data.xlsx', [data2, data3], ['Sheet1', 'Sheet_data3']);
};export default {methods: {exportExcel}
};</script>