vue导出element表格，xlsx和xlsx-style生成xlsx文件并修改样式

1.下载依赖

npm install xlsx --save
npm install file-saver --save
npm install xlsx-style --save

2.先修改xlsx-style的源码，一旦引入xlsx-style则会报错

xlsx-style使用中常见问题及解决办法：

xlsx-style使用中常见问题及解决办法-CSDN博客

在\node_modules\xlsx-style\dist\cpexcel.js 807行的 var cpt = require(’./cpt’ + ‘able’); 改成 var cpt = cptable;
但是如果每次打包之前去修改包里的代码很麻烦所以我去node_modules包里找到了这个文件

把这个xlsx.full.min.js复制一份出来，粘贴到项目内，我是放到了public的index里面如图：

3.在页面使用，这里是使用element表格，用id绑定后，再用dom获取该节点，然后导出数据添加样式

<template><div><el-table :id="'mytable'" :data="tableData" style="width: 100%"><el-table-column prop="date" label="日期" width="150"> </el-table-column><el-table-column label="配送信息"><el-table-column prop="name" label="姓名" width="120"></el-table-column><el-table-column label="地址"><el-table-column prop="province" label="省份" width="120"></el-table-column><el-table-column prop="city" label="市区" width="120"></el-table-column><el-table-column prop="address" label="地址" width="300"></el-table-column><el-table-column prop="zip" label="邮编" width="120"></el-table-column></el-table-column></el-table-column></el-table><button @click="setExport2Excel">按钮</button></div>
</template><script>
import { utils } from "xlsx";
export default {data() {return {tableData: [{date: "2016-05-03",name: "王小虎",province: "上海",city: "普陀区",address: "上海市普陀区金沙江路 1518 弄",zip: 200333,},{date: "2016-05-02",name: "王小虎",province: "上海",city: "普陀区",address: "上海市普陀区金沙江路 1518 弄",zip: 200333,},{date: "2016-05-04",name: "王小虎",province: "上海",city: "普陀区",address: "上海市普陀区金沙江路 1518 弄",zip: 200333,},{date: "2016-05-01",name: "王小虎",province: "上海",city: "普陀区",address: "上海市普陀区金沙江路 1518 弄",zip: 200333,},{date: "2016-05-08",name: "王小虎",province: "上海",city: "普陀区",address: "上海市普陀区金沙江路 1518 弄",zip: 200333,},{date: "2016-05-06",name: "王小虎",province: "上海",city: "普陀区",address: "上海市普陀区金沙江路 1518 弄",zip: 200333,},{date: "2016-05-07",name: "王小虎",province: "上海",city: "普陀区",address: "上海市普陀区金沙江路 1518 弄",zip: 200333,},],};},methods: {setExport2Excel() {var xlsxParam = { raw: true }; //这个保证表格只进行解析 不做运算var wb = utils.table_to_sheet(document.querySelector("#mytable"),xlsxParam); for (var i = 0; i < 11; i++) {wb["!cols"][i] = { wpx: 130 };}// 样式的文档地址// https://www.npmjs.com/package/xlsx-stylefor (const key in wb) {if (key.indexOf("!") === -1 && wb[key].v) {wb[key].s = {font: {//字体设置sz: 13,bold: false,color: {rgb: "000000", //十六进制，不带#},},alignment: {//文字居中horizontal: "center",vertical: "center",wrap_text: true,},border: {// 设置边框top: { style: "thin" },bottom: { style: "thin" },left: { style: "thin" },right: { style: "thin" },},};}}var data = this.addRangeBorder(wb["!merges"], wb) //合并项添加边框var filedata = this.sheet2blob(data)this.openDownloadDialog(filedata,this.todayTimeString + "-xxx报表.xlsx")},//为合并项添加边框addRangeBorder(range, ws) {let arr = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z",];if (range) {range.forEach((item) => {let startColNumber = Number(item.s.r),endColNumber = Number(item.e.r);let startRowNumber = Number(item.s.c),endRowNumber = Number(item.e.c);const test = ws[arr[startRowNumber] + (startColNumber + 1)];for (let col = startColNumber; col <= endColNumber; col++) {for (let row = startRowNumber; row <= endRowNumber; row++) {ws[arr[row] + (col + 1)] = test;}}});}return ws;},//将一个sheet转成最终的excel文件的blob对象，然后利用URL.createObjectURL下载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，官方解释是，如果开启生成速度会下降，但在低版本IOS设备上有更好的兼容性type: "binary",};var wbout = XLSX.write(workbook, wopts);var blob = new Blob([s2ab(wbout)], {type: "application/octet-stream",}); // 字符串转ArrayBufferfunction 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;},openDownloadDialog(url, saveName) {if (typeof url == "object" && url instanceof Blob) {url = URL.createObjectURL(url); // 创建blob地址}var aLink = document.createElement("a");aLink.href = url;aLink.download = saveName || ""; // HTML5新增的属性，指定保存文件名，可以不要后缀，注意，file:///模式下不会生效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);},},
};
</script>