Javascript JSON 到 Excel 文件下载
Javascript JSON to Excel file download
我有Json数据，我需要使用javascript将json数据转换为Excel文件，
参考网址 ： http://jsfiddle.net/hybrid13i/JXrwM/
我正在使用此代码：
function JSONToTSVConvertor(JSONData, ReportTitle, ShowLabel, myTemplateName){
//If JSONData is not an object then JSON.parse will parse the JSON string in an Object
var arrData = typeof JSONData != 'object' ? JSON.parse(JSONData) : JSONData;
var TSV = '';
//Set Report title in first row or line
//TSV += ReportTitle + ''r'n'n';
//This condition will generate the Label/Header
if (ShowLabel) {
var row = "";
//This loop will extract the label from 1st index of on array
for (var index in arrData[0]) {
//Now convert each value to string and tab-seprated
row += index + ' ';
}
row = row.slice(0, -1);
//append Label row with line break
TSV += row + ''r'n';
}
//1st loop is to extract each row
for (var i = 0; i < arrData.length; i++) {
var row = "";
//2nd loop will extract each column and convert it in string tab-seprated
for (var index in arrData[i]) {
row += '"' + arrData[i][index] + '" ';
}
row.slice(0, row.length - 1);
//add a line break after each row
TSV += row + ''r'n';
}
if (TSV == '') {
alert("Invalid data");
return;
}
var blob = new Blob([TSV], {type: "data:text/tsv;charset=utf-8"});
//Generate a file name
var fileName = myTemplateName;
//this will remove the blank-spaces from the title and replace it with an underscore
fileName += ReportTitle.replace(/ /g,"_");
saveAs(blob, ""+fileName+".tsv");
}
此示例代码适用于 CSV 和 TSV 格式。 我需要 Excel 格式，我认为没有任何想法，请帮助我。请建议一些示例代码。谢谢。。。
我使用以下代码Javascript JSON到Excel或CSV文件下载
仅更改文件扩展名（报告.xlsx或报告。CSV）
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.13.1/xlsx.full.min.js"></script>
<script>
function ExportData()
{
filename='reports.xlsx';
data=[{Market: "IN", New Arrivals: "6", Upcoming Appointments: "2", Pending - 1st Attempt: "4"},
{Market: "KS/MO", New Arrivals: "4", Upcoming Appointments: "4", Pending - 1st Attempt: "2"},
{Market: "KS/MO", New Arrivals: "4", Upcoming Appointments: "4", Pending - 1st Attempt: "2"},
{Market: "KS/MO", New Arrivals: "4", Upcoming Appointments: "4", Pending - 1st Attempt: "2"}]
var ws = XLSX.utils.json_to_sheet(data);
var wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, "People");
XLSX.writeFile(wb,filename);
}
</script>
如
前所述，CSV本身就是excel文件。但是，在许多语言环境中，上述脚本生成的 csv 打开不正确，excel 将所有内容放入 1 个单元格中。对原始脚本进行小修改会有所帮助：只需将标题替换为"sep=，"。
var CSV = 'sep=,' + ''r'n'n';
此处更改的工作示例：https://jsfiddle.net/1ecj1rtz/。
花了一些时间弄清楚这一点，因此回答旧线程以帮助其他人节省一些时间。
我创建了一个类来将 json 数据导出到 excel 文件。如果在我的代码中进行一些富有成效的编辑，我会很高兴。
只需在 JS 库中添加类并调用：
var myTestXML = new myExcelXML(myJsonArray);
myTestXML.downLoad();
My myExcelXML Class：
let myExcelXML = (function() {
let Workbook, WorkbookStart = '<?xml version="1.0"?><ss:Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40">';
const WorkbookEnd = '</ss:Workbook>';
let fs, SheetName = 'SHEET 1',
styleID = 1, columnWidth = 80,
fileName = "Employee_List", uri, link;
class myExcelXML {
constructor(o) {
let respArray = JSON.parse(o);
let finalDataArray = [];
for (let i = 0; i < respArray.length; i++) {
finalDataArray.push(flatten(respArray[i]));
}
let s = JSON.stringify(finalDataArray);
fs = s.replace(/&/gi, '&');
}
downLoad() {
const Worksheet = myXMLWorkSheet(SheetName, fs);
WorkbookStart += myXMLStyles(styleID);
Workbook = WorkbookStart + Worksheet + WorkbookEnd;
uri = 'data:text/xls;charset=utf-8,' + encodeURIComponent(Workbook);
link = document.createElement("a");
link.href = uri;
link.style = "visibility:hidden";
link.download = fileName + ".xls";
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
}
get fileName() {
return fileName;
}
set fileName(n) {
fileName = n;
}
get SheetName() {
return SheetName;
}
set SheetName(n) {
SheetName = n;
}
get styleID() {
return styleID;
}
set styleID(n) {
styleID = n;
}
}
const myXMLStyles = function(id) {
let Styles = '<ss:Styles><ss:Style ss:ID="' + id + '"><ss:Font ss:Bold="1"/></ss:Style></ss:Styles>';
return Styles;
}
const myXMLWorkSheet = function(name, o) {
const Table = myXMLTable(o);
let WorksheetStart = '<ss:Worksheet ss:Name="' + name + '">';
const WorksheetEnd = '</ss:Worksheet>';
return WorksheetStart + Table + WorksheetEnd;
}
const myXMLTable = function(o) {
let TableStart = '<ss:Table>';
const TableEnd = '</ss:Table>';
const tableData = JSON.parse(o);
if (tableData.length > 0) {
const columnHeader = Object.keys(tableData[0]);
let rowData;
for (let i = 0; i < columnHeader.length; i++) {
TableStart += myXMLColumn(columnWidth);
}
for (let j = 0; j < tableData.length; j++) {
rowData += myXMLRow(tableData[j], columnHeader);
}
TableStart += myXMLHead(1, columnHeader);
TableStart += rowData;
}
return TableStart + TableEnd;
}
const myXMLColumn = function(w) {
return '<ss:Column ss:AutoFitWidth="0" ss:Width="' + w + '"/>';
}
const myXMLHead = function(id, h) {
let HeadStart = '<ss:Row ss:StyleID="' + id + '">';
const HeadEnd = '</ss:Row>';
for (let i = 0; i < h.length; i++) {
const Cell = myXMLCell(h[i].toUpperCase());
HeadStart += Cell;
}
return HeadStart + HeadEnd;
}
const myXMLRow = function(r, h) {
let RowStart = '<ss:Row>';
const RowEnd = '</ss:Row>';
for (let i = 0; i < h.length; i++) {
const Cell = myXMLCell(r[h[i]]);
RowStart += Cell;
}
return RowStart + RowEnd;
}
const myXMLCell = function(n) {
let CellStart = '<ss:Cell>';
const CellEnd = '</ss:Cell>';
const Data = myXMLData(n);
CellStart += Data;
return CellStart + CellEnd;
}
const myXMLData = function(d) {
let DataStart = '<ss:Data ss:Type="String">';
const DataEnd = '</ss:Data>';
return DataStart + d + DataEnd;
}
const flatten = function(obj) {
var obj1 = JSON.parse(JSON.stringify(obj));
const obj2 = JSON.parse(JSON.stringify(obj));
if (typeof obj === 'object') {
for (var k1 in obj2) {
if (obj2.hasOwnProperty(k1)) {
if (typeof obj2[k1] === 'object' && obj2[k1] !== null) {
delete obj1[k1]
for (var k2 in obj2[k1]) {
if (obj2[k1].hasOwnProperty(k2)) {
obj1[k1 + '-' + k2] = obj2[k1][k2];
}
}
}
}
}
var hasObject = false;
for (var key in obj1) {
if (obj1.hasOwnProperty(key)) {
if (typeof obj1[key] === 'object' && obj1[key] !== null) {
hasObject = true;
}
}
}
if (hasObject) {
return flatten(obj1);
} else {
return obj1;
}
} else {
return obj1;
}
}
return myExcelXML;
})();
我知道
现在回答有点晚了，但我找到了一个不错的angular库，可以自己完成所有艰苦的工作。
GITHUB： ngJsonExportExcel
图书馆直接下载：下载
文件保存程序 JS ： 下载
怎么用？
- 在应用中包含模块
var myapp = angular.module（'myapp'， ['ngJsonExportExcel']）
- 添加导出按钮并使用
ng-json-export-excel指令并将数据传递到指令中
ng-json-export-excel ：它是指令名称
数据 ：它是将要导出的数据（JSON）
报告字段 ：
传递列名和 JSON 中存在的键，例如 customer_name"： "客户名称"
.HTML
<button ng-json-export-excel data="dataList" report-fields="{'uesr.username': 'Heder 1', keyjson2: 'Header 2', keyjson3: 'Head 3'}" filename =" 'export-excel' " separator="," class="css-class"></button>
Excel是一种非常复杂的格式，有许多版本。 如果你真的需要这样做，我会研究其他人编写的一些JavaScript库。 在谷歌上搜索"javascript excel writer"以查看一些示例。
此代码片段使用 node.js 与 excel4node 和 express 模块，以便使用 Javascript 将 JSON 数据转换为 Excel 文件并将其发送到客户端。
const xl = require('excel4node');
const express = require('express');
const app = express();
var json = [{"Vehicle":"BMW","Date":"30, Jul 2013 09:24 AM","Location":"Hauz Khas, Enclave, New Delhi, Delhi, India","Speed":42},{"Vehicle":"Honda CBR","Date":"30, Jul 2013 12:00 AM","Location":"Military Road, West Bengal 734013, India","Speed":0},{"Vehicle":"Supra","Date":"30, Jul 2013 07:53 AM","Location":"Sec-45, St. Angel's School, Gurgaon, Haryana, India","Speed":58},{"Vehicle":"Land Cruiser","Date":"30, Jul 2013 09:35 AM","Location":"DLF Phase I, Marble Market, Gurgaon, Haryana, India","Speed":83},{"Vehicle":"Suzuki Swift","Date":"30, Jul 2013 12:02 AM","Location":"Behind Central Bank RO, Ram Krishna Rd by-lane, Siliguri, West Bengal, India","Speed":0},{"Vehicle":"Honda Civic","Date":"30, Jul 2013 12:00 AM","Location":"Behind Central Bank RO, Ram Krishna Rd by-lane, Siliguri, West Bengal, India","Speed":0},{"Vehicle":"Honda Accord","Date":"30, Jul 2013 11:05 AM","Location":"DLF Phase IV, Super Mart 1, Gurgaon, Haryana, India","Speed":71}]
const createSheet = () => {
return new Promise(resolve => {
// setup workbook and sheet
var wb = new xl.Workbook();
var ws = wb.addWorksheet('Sheet');
// Add a title row
ws.cell(1, 1)
.string('Vehicle')
ws.cell(1, 2)
.string('Date')
ws.cell(1, 3)
.string('Location')
ws.cell(1, 4)
.string('Speed')
// add data from json
for (let i = 0; i < json.length; i++) {
let row = i + 2
ws.cell(row, 1)
.string(json[i].Vehicle)
ws.cell(row, 2)
.date(json[i].Date)
ws.cell(row, 3)
.string(json[i].Location)
ws.cell(row, 4)
.number(json[i].Speed)
}
resolve( wb )
})
}
app.get('/excel', function (req, res) {
createSheet().then( file => {
file.write('ExcelFile.xlsx', res);
})
});
app.listen(3040, function () {
console.log('Excel app listening on port 3040');
});
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