产品原型：
功能需求：点击导出考勤表格按钮，会自动下载成Excel格式
jsp页面代码：
<div class="tools"> <button type="button" class="btn green" id="excell" onclick="method5('dataTable')">导出考勤表</button> </div>
js代码
//打印表格 var idTmr; function getExplorer() { var explorer = window.navigator.userAgent ; //ie if (explorer.indexOf("MSIE") >= 0) { return 'ie'; } //firefox else if (explorer.indexOf("Firefox") >= 0) { return 'Firefox'; } //Chrome else if (explorer.indexOf("Chrome") >= 0) { return 'Chrome'; } //Opera else if (explorer.indexOf("Opera") >= 0) { return 'Opera'; } //Safari else if (explorer.indexOf("Safari") >= 0) { return 'Safari'; } } function method5(tableid) { if (getExplorer() == 'ie') { var curTbl = document.getElementById(tableid); var oXL = new ActiveXObject("Excel.Application"); var oWB = oXL.Workbooks.Add(); var xlsheet = oWB.Worksheets(1); var sel = document.body.createTextRange(); sel.moveToElementText(curTbl); sel.select(); sel.execCommand("Copy"); xlsheet.Paste(); oXL.Visible = true; try { var fname = oXL.Application.GetSaveAsFilename("Excel.xls", "Excel Spreadsheets (*.xls), *.xls"); } catch (e) { print("Nested catch caught " + e); } finally { oWB.SaveAs(fname); oWB.Close(savechanges = false); oXL.Quit(); oXL = null; idTmr = window.setInterval("Cleanup();", 1); } } else { tableToExcel(tableid) } } function Cleanup() { window.clearInterval(idTmr); CollectGarbage(); } var tableToExcel = (function() { var uri = 'data:application/vnd.ms-excel;base64,', template = '<html><head><meta charset="UTF-8"></head><body><table border="1">{table}</table></body></html>', 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(table, name) { if (!table.nodeType) table = document.getElementById(table) var ctx = { worksheet : name || 'Worksheet', table : table.innerHTML } window.location.href = uri + base64(format(template, ctx)) } })()
完整的可复制黏贴的demo：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> </head> <body> <div class="tools"> <button type="button" class="btn green" id="excell" onclick="method5('dataTable')">导出考勤表格</button> </div> <table border="1" id="dataTable"> <tr> <td>王婷111</td> <td>一见倾城333 </td> </tr> <tr> <td>祈澈姑娘222</td> <td>Python开发者交流平台44</td> </tr> <tr> <td>wwwangting888</td> <td>13661725475</td> </tr> </table> </body> <script> //打印表格 var idTmr; function getExplorer() { var explorer = window.navigator.userAgent; //ie if(explorer.indexOf("MSIE") >= 0) { return 'ie'; } //firefox else if(explorer.indexOf("Firefox") >= 0) { return 'Firefox'; } //Chrome else if(explorer.indexOf("Chrome") >= 0) { return 'Chrome'; } //Opera else if(explorer.indexOf("Opera") >= 0) { return 'Opera'; } //Safari else if(explorer.indexOf("Safari") >= 0) { return 'Safari'; } } function method5(tableid) { if(getExplorer() == 'ie') { var curTbl = document.getElementById(tableid); var oXL = new ActiveXObject("Excel.Application"); var oWB = oXL.Workbooks.Add(); var xlsheet = oWB.Worksheets(1); var sel = document.body.createTextRange(); sel.moveToElementText(curTbl); sel.select(); sel.execCommand("Copy"); xlsheet.Paste(); oXL.Visible = true; try { var fname = oXL.Application.GetSaveAsFilename("Excel.xls", "Excel Spreadsheets (*.xls), *.xls"); } catch(e) { print("Nested catch caught " + e); } finally { oWB.SaveAs(fname); oWB.Close(savechanges = false); oXL.Quit(); oXL = null; idTmr = window.setInterval("Cleanup();", 1); } } else { tableToExcel(tableid) } } function Cleanup() { window.clearInterval(idTmr); CollectGarbage(); } var tableToExcel = (function() { var uri = 'data:application/vnd.ms-excel;base64,', template = '<html><head><meta charset="UTF-8"></head><body><table border="1">{table}</table></body></html>', 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(table, name) { if(!table.nodeType) table = document.getElementById(table) var ctx = { worksheet: name || 'Worksheet', table: table.innerHTML } window.location.href = uri + base64(format(template, ctx)) } })() </script> </html>
