Javascript JSON 到 Excel 文件下載

Question

我有 Json 數據，我需要使用 javascript 將 json 數據轉換為 Excel 文件，

參考網址： http : //jsfiddle.net/hybrid13i/JXrwM/

我正在使用此代碼：

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");
}

此示例代碼適用於 csv 和 tsv 格式。 我需要 Excel 格式我不認為有任何想法請幫助我。 請建議一些示例代碼。 謝謝...

Answer 1

如前所述，CSV 是 excel 文件本身。 但是，在許多語言環境中，上面腳本生成的 csv 被錯誤地打開，其中 excel 將所有內容放入 1 個單元格中。 對原始腳本的小修改有幫助：只需將標題替換為“sep=,”。

var CSV = 'sep=,' + '\r\n\n';

此處更改的工作示例： https : //jsfiddle.net/1ecj1rtz/ 。

花了一些時間來解決這個問題，因此回答舊線程以幫助其他人節省一些時間。

Answer 2

我創建了一個類來將 json 數據導出到 excel 文件。 如果在我的代碼中進行了一些富有成效的編輯，我會很高興。

只需在您的 JS 庫中添加該類並調用：

var myTestXML = new myExcelXML(myJsonArray);
myTestXML.downLoad();

我的 myExcelXML 類：

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, '&amp;');
        }

        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;
})();

Answer 3

我使用了以下代碼 Javascript JSON to Excel 或 CSV 文件下載

僅更改文件擴展名（reports.xlsx 或 reports.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>

Answer 4

我知道現在回答有點晚了，但我找到了一個很好的angular庫，它可以自己完成所有艱苦的工作。

GITHUB： ngJsonExportExcel

庫直接下載 : 下載

文件保護 JS : 下載

如何使用？

1. 在您的應用程序中包含該模塊

var myapp = angular.module('myapp', ['ngJsonExportExcel'])

2. 添加導出按鈕並使用ng-json-export-excel指令並將數據傳遞到指令中

ng-json-export-excel ：它是指令名稱

data : 它是將要導出的數據 (JSON)

報告字段：

傳遞列名和 JSON 中存在的鍵，例如 customer_name": "Customer Name"

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>

Answer 5

Excel 是一種非常復雜的格式，有很多版本。 如果您真的需要這樣做，我會調查其他人編寫的一些 JavaScript 庫。 在 Google 上搜索“javascript excel writer”以查看一些示例。

Answer 6

此代碼片段將 node.js 與 excel4node 和 express 模塊一起使用，以便使用 Javascript 將 JSON 數據轉換為 Excel 文件並將其發送到客戶端。

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');
});