1. Import the plug-in
NPM install –save XLSX NPM install -s file-saver NPM install -d script-loader NPM install –save XLSX style
NPM install –save xlsX-style This relative module was not found: ./cptable in/node_modules/[email protected]@xlsx-style/dist/cpexcel. On line 807 \node_modules\xlsx-style\dist\cpexcel. Var CPT = require(‘./ CPT ‘+’ able ‘); Var CPT = cptable;
2. Create a JS file
3. Main code
exportExcel.js
" // Export2Excel.js/* eslint-disable */import 'script-loader! file-saver'; import './Blob.js'; Import 'script-loader! Import 'script-loader! xlsx/dist/xlsx.core.min'; import XLSXS from 'xlsx-style'function datenum(v, date1904) { if (date1904) v += 1462; var epoch = Date.parse(v); return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000); }function sheet_from_array_of_arrays(data, opts) { var ws = {}; var range = { s: { c: 10000000, r: 10000000 }, e: { c: 0, r: 0 } }; for (var R = 0; R ! = data.length; ++R) { for (var C = 0; C ! = data[R].length; ++C) { if (range.s.r > R) range.s.r = R; if (range.s.c > 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 = XLSXS.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 = XLSXS.SSF._table[14]; cell.v = datenum(cell.v); } else cell.t = 's'; ws[cell_ref] = cell; } } if (range.s.c < 10000000) ws['!ref'] = XLSXS.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 exportJsonToexcel ({data, // formatted data filename, // table name merges = [], // merged cell format autoWidth = true, bookType = 'xlsx', formStyle, / / style change {} = {}) / * the original data * / / / judge whether there is the name of the table, not give a fixed table name filename = filename | | 'excel - list' var ws_name = "SheetJS"; Var wb = new Workbook(), // Convert data to the following dynamic width ws = sheet_froM_array_of_arrays (data); If (autoWidth) {/* Set the maximum width of each column of the worksheet */ const colWidth = data.map(row =>) Row. map(val => {/* = null/undefined*/ if (val == null) {return {' WCH ': 10}; } else if (val.toString().charcodeat (0) > 255) {return {' WCH ': val.toString().length * 2}; } else { return { 'wch': val.toString().length }; }})) if (merges. Length > 0) {if (! ws['!merges']) ws['!merges'] = []; merges.forEach(a => { let w1 = a.s.c let e1 = a.s.r let w2 = a.e.c let e2 = a.e.r if (e1 == e2) { if (+w1 > +w2) { let jh = w1 w1 = w2 w2 = jh } for (let i = +w1; i <= +w2; i++) { colWidth[e1][i]['wch'] = 0; / / let result = colWidth[0]; for (let i = 1; i < colWidth.length; i++) { for (let j = 0; j < colWidth[i].length; j++) { if (result[j]['wch'] < colWidth[i][j]['wch']) { result[j]['wch'] = colWidth[i][j]['wch']; } } } ws['!cols'] = result; } /* add worksheet to workbook */ wb.SheetNames.push(ws_name); wb.Sheets[ws_name] = ws; var dataInfo = wb.Sheets[wb.SheetNames[0]]; Const borderAll = {// BorderLine top: {style: 'thin'}, bottom: {style: 'thin'}, left: {style: 'thin'}, right: { style: 'thin' } }; / / add borders to so cell const letter = {" A ": 0," B ": 1," C ": 2," D ": 3," E ": 4," F ": 5," G ": 6," H ": 7," I ": 8," J ": 9," K ": 10, "L": 11, "M": 12, "N": 13, "O": 14, "P": 15, "Q": 16, "R": 17, "S": 18, "T": 19, "U": 20, "V": 21, "W": 22, "X": 23, "Y": 24, "Z": 25} const range = dataInfo['! Ref '].split(':') // let a1 = range[0].slice(0, 0) 1) // A let b1 = +range[0].slice(1) // 1 let a2 = range[1].slice(0, For (let I = letter[a1]; for (let I = letter[a1]; i <= letter[a2]; i++) { for (let j = b1; j <= b2; j++) { let value = '' for (let key in letter) { if (letter[key] == i) { value = key } } if (! dataInfo[value + j]) { dataInfo[value + j] = { s: { border: borderAll, } } } } } for (var i in dataInfo) { if (i == '! ref' || i == '! merges' || i == '! Cols ') {} else {dataInfo[I + "]. S = {border: borderAll, // Horizontal: "center", vertical: "center" }, For (let key in formStyle) {dataInfo[key].s = formStyle[key] dataInfo[key].s.order = borderAll} var wbout = XLSXS.write(wb, { bookType: bookType, bookSST: false, type: 'binary' }); saveAs(new Blob([s2ab(wbout)], { type: "application/octet-stream" }), `${filename}.${bookType}`); };"Copy the codeBlob.js
" /* eslint-disable *//* Blob.js * A Blob implementation. * 2014-05-27 * * By Eli Grey, http://eligrey.com * By Devin Samarin, https://github.com/eboyjr * License: X11/MIT * See LICENSE.md *//*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 BlobBuilder var BlobBuilder = view.BlobBuilder || view.WebKitBlobBuilder || view.MozBlobBuilder || (function (view) { var get_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; FakeBlob.fake = FB_proto.fake = true; while (file_ex_code--) { FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1; } if (! real_URL.createObjectURL) { URL = view.URL = {}; } URL.createObjectURL = function (blob) { var type = 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 string if (Uint8Array && (data instanceof ArrayBuffer || data instanceof Uint8Array)) { var str = "", 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 sync throw 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 string bb.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 = this.data.length = 0; }; return FakeBlobBuilder; }(view)); view.Blob = function Blob(blobParts, options) { var type = options ? (options.type || "") : ""; var builder = new BlobBuilder(); if (blobParts) { for (var i = 0, len = blobParts.length; i < len; i++) { builder.append(blobParts[i]); } } return builder.getBlob(type); }; }(typeof self ! == "undefined" && self || typeof window ! == "undefined" && window || this.content || this));"Copy the codeVue call export
Import {exportjsontoexcel} from '@/libs/exportExcel' handleExport () {// s-start- start; E - end - the end; R - row - line; C -column- column let title = 'XXX table' let timeText = 'statistical date: 2020 to 2021 'let headList = [[title, null, NULL, NULL, NULL, null, null, null, null, null, null, null, null, Null, [timeText, NULL, NULL, NULL, NULL, NULL, null, null, null, null, null, null, null, null, 'project commission, null, null, null, null, null, "sales", null,' open card fees, null, 'top-up fees, null,' total (yuan)], [' working ', 'name', 'A', 'B', 'C'. 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M']] merges1 = [s: {r: 0, c: 0}, e: {r: 0, c: 0] 14 } }, { s: { r: 1, c: 0 }, e: { r: 1, c: 14 } }, { s: { r: 2, c: 2 }, e: { r: 2, c: 7 } }, { s: { r: 2, c: 8 }, e: { r: 2, c: 9 } }, { s: { r: 2, c: 10 }, e: { r: 2, c: 11 } }, { s: { r: 2, c: 12 }, e: { r: 2, c: 13 } }, { s: { r: 2, c: 0 }, e: { r: 3, c: 0 } }, { s: { r: 2, c: 1 }, e: { r: 3, c: 1 } }, { s: { r: 2, c: 14 }, e: { r: 3, c: 14}}] let merges2 = [] // let aoa = [...headList, ContentList] // export data const filename = 'filename' XLSX 'let merges = [...merges1, Let formStyle = {} formStyle['A1'] = {font: {name: '宋体', bold: true, italic: false, underline: false }, alignment: { horizontal: 'center', vertical: 'center' } } exportjsontoexcel({ data: Aoa, // table data merges, // Merge cell filename, // export filename autoWidth: true, // adaptive width bookType: 'XLSX ', // Export type formStyle: FormStyle // Special row or column style})},Copy the code4. Reference documents
Blog.csdn.net/W_H_M_S/art… (Link 1)
Blog.csdn.net/weixin_4242… (Link 2)
5. Supplementary notes
Since you don’t need to export styles (just merge cells) at the beginning of development, the link 2 approach is easier. Style adjustments were added later without wanting to change the original data structure. So I changed some code in link 1 (exportExcel.js). The main modifications are as follows:
The formStyle parameter is added because each list export function has a different style
// Set the main heading style (note: For (let key in formStyle) {dataInfo[key]. S = formStyle[key] dataInfo[key].s.order = borderAll // Add a border to all cells}Copy the code