vue导出表格数据

简介

项目中经常会用到导入数据的场景，这里介绍 VUE 中如何使用插件 xlsx 导出数据

安装3个依赖

cnpm安装：

cnpm install --save xlsx //电子表格格式的解析器cnpm install --save file-saver // 用来生成文件的web应用程序cnpm install -D ｓｃｒｉｐｔ-loader //将js挂在在全局下

yarn安装：

yarn add xlsxyarn add file-saveryarn add ｓｃｒｉｐｔ-loader导入2个js文件

Blob.js和Export2Excel.js （文件名最好别改，否则你会有无穷无尽的麻烦，大神除外！）

在public文件夹下的静态文件夹里放入Blob.js和Export2Excel.js两个JS文件

比如我这里目录如下

public└─static └─js└─excel├─Blob.js├─Export2Excel.js在main.js中全局引入import Blob from ‘./public/static/js/excel/Blob.js‘import Export2Excel from ‘./public/static/js/excel/Export2Excel.js‘修改Export2Excel.js

把路径修改到你自己文件的位置

require(‘ｓｃｒｉｐｔ-loader!file-saver‘)/* 这里的路径换成自己的 */require(‘./public/static/js/Blob.js‘)require(‘ｓｃｒｉｐｔ-loader!xlsx/dist/xlsx.core.min‘)使用导出Excel此处省略代码export default {data () {return {tableData: []}},methods: {exportExcel() {require.ensure([], () => {const { export_json_to_excel } = require("./public/static/js/Export2Excel") // 路径改为你项目里的路径const tHeader = ["编号","喵名称","喵性别","喵年龄"] //生成Excel表格的头部标题栏const filterVal = ["id","name","gender","age"] //生成Excel表格的内容栏（根据自己的数据内容属性填写）const data = this.formatJson(filterVal, this.tableData)export_json_to_excel(tHeader, data, "统计表") //这里可以定义你的Excel表的默认名称});},formatJson(filterVal, jsonData) {return jsonData.map(v => filterVal.map(j => v[j]));}}}附上js文件内容,不想去github下载的,可以直接复制使用

Blob.js

/* eslint-disable *//* Blob.js*//*global self, unescape *//*jslint bitwise: true, regexp: true, confusion: true, es5: true, vars: true, white: true,plusplus: true *//*! @source http://purl.eligrey.com/github/Blob.js/blob/master/Blob.js */(function (view) {"use strict";view.URL = view.URL || view.webkitURL;if (view.Blob && view.URL) {try {new Blob;return;} catch (e) {}}// Internally we use a BlobBuilder implementation to base Blob off of// in order to support older browsers that only have BlobBuildervar BlobBuilder = view.BlobBuilder || view.WebKitBlobBuilder || view.MozBlobBuilder || (function (view) {varget_class = function (object) {return Object.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1];}, FakeBlobBuilder = function BlobBuilder() {this.data = [];}, FakeBlob = function Blob(data, type, encoding) {this.data = data;this.size = data.length;this.type = type;this.encoding = encoding;}, FBB_proto = FakeBlobBuilder.prototype, FB_proto = FakeBlob.prototype, FileReaderSync = view.FileReaderSync, FileException = function (type) {this.code = this[this.name = type];}, file_ex_codes = ("NOT_FOUND_ERR SECURITY_ERR ABORT_ERR NOT_READABLE_ERR ENCODING_ERR "+ "NO_MODIFICATION_ALLOWED_ERR INVALID_STATE_ERR SYNTAX_ERR").split(" "), file_ex_code = file_ex_codes.length, real_URL = view.URL || view.webkitURL || view, real_create_object_URL = real_URL.createObjectURL, real_revoke_object_URL = real_URL.revokeObjectURL, URL = real_URL, btoa = view.btoa, atob = view.atob, ArrayBuffer = view.ArrayBuffer, Uint8Array = view.Uint8Array, origin = /^[\w-]+:\/*\[?[\w\.:-]+\]?(?::[0-9]+)?/;FakeBlob.fake = FB_proto.fake = true;while (file_ex_code--) {FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1;}// Polyfill URLif (!real_URL.createObjectURL) {URL = view.URL = function (uri) {varuri_info = document.createElementNS("http://www.w3.org/1999/xhtml", "a"), uri_origin;uri_info.href = uri;if (!("origin" in uri_info)) {if (uri_info.protocol.toLowerCase() === "data:") {uri_info.origin = null;} else {uri_origin = uri.match(origin);uri_info.origin = uri_origin && uri_origin[1];}}return uri_info;};}URL.createObjectURL = function (blob) {vartype = blob.type, data_URI_header;if (type === null) {type = "application/octet-stream";}if (blob instanceof FakeBlob) {data_URI_header = "data:" + type;if (blob.encoding === "base64") {return data_URI_header + ";base64," + blob.data;} else if (blob.encoding === "URI") {return data_URI_header + "," + decodeURIComponent(blob.data);}if (btoa) {return data_URI_header + ";base64," + btoa(blob.data);} else {return data_URI_header + "," + encodeURIComponent(blob.data);}} else if (real_create_object_URL) {return real_create_object_URL.call(real_URL, blob);}};URL.revokeObjectURL = function (object_URL) {if (object_URL.substring(0, 5) !== "data:" && real_revoke_object_URL) {real_revoke_object_URL.call(real_URL, object_URL);}};FBB_proto.append = function (data/*, endings*/) {var bb = this.data;// decode data to a binary stringif (Uint8Array && (data instanceof ArrayBuffer || data instanceof Uint8Array)) {varstr = "", buf = new Uint8Array(data), i = 0, buf_len = buf.length;for (; i < buf_len; i++) {str += String.fromCharCode(buf[i]);}bb.push(str);} else if (get_class(data) === "Blob" || get_class(data) === "File") {if (FileReaderSync) {var fr = new FileReaderSync;bb.push(fr.readAsBinaryString(data));} else {// async FileReader won‘t work as BlobBuilder is syncthrow new FileException("NOT_READABLE_ERR");}} else if (data instanceof FakeBlob) {if (data.encoding === "base64" && atob) {bb.push(atob(data.data));} else if (data.encoding === "URI") {bb.push(decodeURIComponent(data.data));} else if (data.encoding === "raw") {bb.push(data.data);}} else {if (typeof data !== "string") {data += ""; // convert unsupported types to strings}// decode UTF-16 to binary stringbb.push(unescape(encodeURIComponent(data)));}};FBB_proto.getBlob = function (type) {if (!arguments.length) {type = null;}return new FakeBlob(this.data.join(""), type, "raw");};FBB_proto.toString = function () {return "[object BlobBuilder]";};FB_proto.slice = function (start, end, type) {var args = arguments.length;if (args < 3) {type = null;}return new FakeBlob(this.data.slice(start, args > 1 ? end : this.data.length), type, this.encoding);};FB_proto.toString = function () {return "[object Blob]";};FB_proto.close = function () {this.size = 0;ｄｅｌｅｔｅ this.data;};return FakeBlobBuilder;}(view));view.Blob = function (blobParts, options) {var type = options ? (options.type || "") : "";var builder = new BlobBuilder();if (blobParts) {for (var i = 0, len = blobParts.length; i < len; i++) {if (Uint8Array && blobParts[i] instanceof Uint8Array) {builder.append(blobParts[i].buffer);}else {builder.append(blobParts[i]);}}}var blob = builder.getBlob(type);if (!blob.slice && blob.webkitSlice) {blob.slice = blob.webkitSlice;}return blob;};var getPrototypeOf = Object.getPrototypeOf || function (object) {return object.__proto__;};view.Blob.prototype = getPrototypeOf(new view.Blob());}(typeof self !== "undefined" && self|| typeof window !== "undefined" && window|| this));

Export2Excel.js

/* eslint-disable */require(‘ｓｃｒｉｐｔ-loader!file-saver‘);// 这里别忘了改成你自己的路径require(‘./public/static/js/Blob.js‘)require(‘ｓｃｒｉｐｔ-loader!xlsx/dist/xlsx.core.min‘);function generateArray(table) { var out = []; var rows = table.querySelectorAll(‘tr‘); var ranges = []; for (var R = 0; R < rows.length; ++R) {var outRow = [];var row = rows[R];var columns = row.querySelectorAll(‘td‘);for (var C = 0; C < columns.length; ++C) { var cell = columns[C]; var colspan = cell.getAttribute(‘colspan‘); var rowspan = cell.getAttribute(‘rowspan‘); var cellValue = cell.innerText; if (cellValue !== "" && cellValue == +cellValue) cellValue = +cellValue; //Skip ranges ranges.forEach(function (range) {if (R >= range.s.r && R = range.s.c && outRow.length C) range.s.c = C; if (range.e.r < R) range.e.r = R; if (range.e.c < C) range.e.c = C; var cell = {v: data[R][C]}; if (cell.v == null) continue; var cell_ref = XLSX.utils.encode_cell({c: C, r: R}); if (typeof cell.v === ‘number‘) cell.t = ‘n‘; else if (typeof cell.v === ‘boolean‘) cell.t = ‘b‘; else if (cell.v instanceof Date) {cell.t = ‘n‘;cell.z = XLSX.SSF._table[14];cell.v = datenum(cell.v); } else cell.t = ‘s‘; ws[cell_ref] = cell;} } if (range.s.c < 10000000) ws[‘!ref‘] = XLSX.utils.encode_range(range); return ws;}function Workbook() { if (!(this instanceof Workbook)) return new Workbook(); this.SheetNames = []; this.Sheets = {};}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;}export function export_table_to_excel(id) { var theTable = document.getElementById(id); console.log(‘a‘) var oo = generateArray(theTable); var ranges = oo[1]; /* original data */ var data = oo[0]; var ws_name = "SheetJS"; console.log(data); var wb = new Workbook(), ws = sheet_from_array_of_arrays(data); /* add ranges to worksheet */ // ws[‘!cols‘] = [‘apple‘, ‘banan‘]; ws[‘!merges‘] = ranges; /* add worksheet to workbook */ wb.SheetNames.push(ws_name); wb.Sheets[ws_name] = ws; var wbout = XLSX.write(wb, {bookType: ‘xlsx‘, bookSST: false, type: ‘binary‘}); saveAs(new Blob([s2ab(wbout)], {type: "application/octet-stream"}), "test.xlsx")}function formatJson(jsonData) { console.log(jsonData)}export function export_json_to_excel(th, jsonData, defaultTitle) { /* original data */ var data = jsonData; data.unshift(th); var ws_name = "SheetJS"; var wb = new Workbook(), ws = sheet_from_array_of_arrays(data); /* add worksheet to workbook */ wb.SheetNames.push(ws_name); wb.Sheets[ws_name] = ws; var wbout = XLSX.write(wb, {bookType: ‘xlsx‘, bookSST: false, type: ‘binary‘}); var title = defaultTitle || ‘列表‘ saveAs(new Blob([s2ab(wbout)], {type: "application/octet-stream"}), title + ".xlsx")}