新建js文件exportXLSX.js
import XLSX from 'xlsx'// 将一个sheet转成最终的excel文件的blob对象，而后利用URL.createObjectURL下载function sheet2blob(sheet, sheetName) { sheetName = sheetName || 'sheet1'; var workbook = { SheetNames: [sheetName], Sheets: {} }; workbook.Sheets[sheetName] = sheet; // 生成excel的配置项 var wopts = { bookType: 'xlsx', // 要生成的文件类型 bookSST: false, // 是否生成Shared String Table，官网解释是，如果开启生成速度会降落，但在低版本IOS设施上有更好的兼容性 type: 'binary' }; var wbout = XLSX.write(workbook, wopts); var blob = new Blob([s2ab(wbout)], { type: "application/octet-stream" }); // 字符串转ArrayBuffer function s2ab(s) { var buf = new ArrayBuffer(s.length); var view = new Uint8Array(buf); for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF; return buf; } return blob;}/*** 通用的关上下载对话框办法，没有测试过具体兼容性* @param url 下载地址，也能够是一个blob对象，必选* @param saveName 保留文件名，可选*/function openDownloadDialog(url, saveName) { if (typeof url == 'object' && url instanceof Blob) { url = URL.createObjectURL(url); // 创立blob地址 } var aLink = document.createElement('a'); aLink.href = url; aLink.download = saveName || ''; // HTML5新增的属性，指定保留文件名，能够不要后缀，留神，file:///模式下不会失效 var event; if (window.MouseEvent) event = new MouseEvent('click'); else { event = document.createEvent('MouseEvents'); event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null); } aLink.dispatchEvent(event);}/** * * @param {Array} json 表格数据 * @param {String} fileName 文件名 * @param {Array} headerList 表头名称 */export default function exportXLSX(json, fileName, headerList) { const header = { header: headerList } const sheet = XLSX.utils.json_to_sheet(json, header); openDownloadDialog(sheet2blob(sheet), fileName);}通过import exportXLSX from "@/utils/exportXLSX"引入该js文件
调用exportXLSX函数传入json数组,文件名,表头即可导出