js Excel导出.xls · 我的网页程序

``` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</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> <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> </body> </html> ```