演示地址：https://xibushijie.github.io/static/ExportToExcel.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>js实现一键导出Excel</title>
</head>
<body>
    <div class="container">
        <table id="backViewTable" class="table table-hover table-sm table2excel">
            <tr>
                <td>#</td>
                <td>ID</td>
                <td>姓名</td>
                <td>座位号</td>
                <td>操作</td>
            </tr>
            <tr>
                <th scope="row">1</th>
                <td>1234</td>
                <td>李文斐</td>
                <td>2楼 3排 34号 </td>
                <td><input class="btn-primary" type="button" value="删除"/></td>
            </tr>
            <tr>
                <th scope="row">2</th>
                <td>2345</td>
                <td>lwf</td>
                <td>1楼 3排 34号</td>
                <td><input class="btn-primary" type="button" value="删除"/></td>
            </tr>
            <tr>
                <th scope="row">3</th>
                <td>3456</td>
                <td>Lee</td>
                <td>1楼 3排 12号</td>
                <td><input class="btn-primary" type="button" value="删除"/></td>
            </tr>
        </table>
        <button class="btn btn-primary btn-sm" onclick="tablesToExcel([\'backViewTable\'], [\'ProductDay1\'], \'TestBook.xls\', \'Excel\')">Export to Excel</button>
    </div>
</body>
<script>
    var tablesToExcel = (function() {
        var uri = \'data:application/vnd.ms-excel;base64,\'
            , tmplWorkbookXML = \'<?xml version="1.0"?><?mso-application progid="Excel.Sheet"?><Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet">\'
            + \'<DocumentProperties xmlns="urn:schemas-microsoft-com:office:office"><Author>Axel Richter</Author><Created>{created}</Created></DocumentProperties>\'
            + \'<Styles>\'
            + \'<Style ss:ID="Currency"><NumberFormat ss:Format="Currency"></NumberFormat></Style>\'
            + \'<Style ss:ID="Date"><NumberFormat ss:Format="Medium Date"></NumberFormat></Style>\'
            + \'</Styles>\'
            + \'{worksheets}</Workbook>\'
            , tmplWorksheetXML = \'<Worksheet ss:Name="{nameWS}"><Table>{rows}</Table></Worksheet>\'
            , tmplCellXML = \'<Cell{attributeStyleID}{attributeFormula}><Data ss:Type="{nameType}">{data}</Data></Cell>\'
            , base64 = function(s) { return window.btoa(unescape(encodeURIComponent(s))) }
            , format = function(s, c) { return s.replace(/{(\w+)}/g, function(m, p) { return c[p]; }) }
        return function(tables, wsnames, wbname, appname) {
            var ctx = "";
            var workbookXML = "";
            var worksheetsXML = "";
            var rowsXML = "";

            for (var i = 0; i < tables.length; i++) {
                if (!tables[i].nodeType) tables[i] = document.getElementById(tables[i]);

                //控制要导出的行数
                for (var j = 0; j < tables[i].rows.length; j++) {
                    rowsXML += \'<Row>\';

                //控制导出的列数（在本例中，最后一列为button,导出的文件会出错，所以导出到倒数第二列
                    for (var k = 0; k < tables[i].rows[j].cells.length-1; k++) {
                        var dataType = tables[i].rows[j].cells[k].getAttribute("data-type");
                        var dataStyle = tables[i].rows[j].cells[k].getAttribute("data-style");
                        var dataValue = tables[i].rows[j].cells[k].getAttribute("data-value");
                        dataValue = (dataValue)?dataValue:tables[i].rows[j].cells[k].innerHTML;
                        var dataFormula = tables[i].rows[j].cells[k].getAttribute("data-formula");
                        dataFormula = (dataFormula)?dataFormula:(appname==\'Calc\' && dataType==\'DateTime\')?dataValue:null;
                        ctx = {  attributeStyleID: (dataStyle==\'Currency\' || dataStyle==\'Date\')?\' ss:StyleID="\'+dataStyle+\'"\':\'\'
                            , nameType: (dataType==\'Number\' || dataType==\'DateTime\' || dataType==\'Boolean\' || dataType==\'Error\')?dataType:\'String\'
                            , data: (dataFormula)?\'\':dataValue
                            , attributeFormula: (dataFormula)?\' ss:Formula="\'+dataFormula+\'"\':\'\'
                        };
                        rowsXML += format(tmplCellXML, ctx);
                    }
                    rowsXML += \'</Row>\'
                }
                ctx = {rows: rowsXML, nameWS: wsnames[i] || \'Sheet\' + i};
                worksheetsXML += format(tmplWorksheetXML, ctx);
                rowsXML = "";
            }

            ctx = {created: (new Date()).getTime(), worksheets: worksheetsXML};
            workbookXML = format(tmplWorkbookXML, ctx);

            // 查看后台的打印输出
            console.log(workbookXML);

            var link = document.createElement("A");
            link.href = uri + base64(workbookXML);
            link.download = wbname || \'Workbook.xls\';
            link.target = \'_blank\';
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link);
        }
    })();
    </script>
</html>

 

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本文链接：https://www.cnblogs.com/wangjae/p/9149307.html