今天遇到一個需要用JS導出Excel的功能，百度了一下，有很多種方法，這里總結了五種，推薦給大家。
這五種方法前四種方法只支持IE瀏覽器，最后一個方法支持當前主流的瀏覽器（火狐，IE，Chrome，Opera，Safari）。
以下是代碼：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>html 表格導出道</title>
<script language="JavaScript" type="text/javascript">
//第一種方法
function method1(tableid) {
var curTbl = document.getElementById(tableid);
var oXL = new ActiveXObject("Excel.Application");
var oWB = oXL.Workbooks.Add();
var oSheet = oWB.ActiveSheet;
var sel = document.body.createTextRange();
sel.moveToElementText(curTbl);
sel.select();
sel.execCommand("Copy");
oSheet.Paste();
oXL.Visible = true;
}
//第二種方法
function method2(tableid)
{
var curTbl = document.getElementById(tableid);
var oXL = new ActiveXObject("Excel.Application");
var oWB = oXL.Workbooks.Add();
var oSheet = oWB.ActiveSheet;
var Lenr = curTbl.rows.length;
for (i = 0; i < Lenr; i++)
{ var Lenc = curTbl.rows(i).cells.length;
for (j = 0; j < Lenc; j++)
{
oSheet.Cells(i + 1, j + 1).value = curTbl.rows(i).cells(j).innerText;
}
}
oXL.Visible = true;
}
//第三種方法
function getXlsFromTbl(inTblId, inWindow){
try {
var allStr = "";
var curStr = "";
if (inTblId != null && inTblId != "" && inTblId != "null") {
curStr = getTblData(inTblId, inWindow);
}
if (curStr != null) {
allStr += curStr;
}
else {
alert("你要導出的表不存在");
return;
}
var fileName = getExcelFileName();
doFileExport(fileName, allStr);
}
catch(e) {
alert("導出發生異常:" + e.name + "->" + e.description + "!");
}
}
function getTblData(inTbl, inWindow) {
var rows = 0;
var tblDocument = document;
if (!!inWindow && inWindow != "") {
if (!document.all(inWindow)) {
return null;
}
else {
tblDocument = eval(inWindow).document;
}
}
var curTbl = tblDocument.getElementById(inTbl);
var outStr = "";
if (curTbl != null) {
for (var j = 0; j < curTbl.rows.length; j++) {
for (var i = 0; i < curTbl.rows[j].cells.length; i++) {
if (i == 0 && rows > 0) {
outStr += " t";
rows -= 1;
}
outStr += curTbl.rows[j].cells[i].innerText + "t";
if (curTbl.rows[j].cells[i].colSpan > 1) {
for (var k = 0; k < curTbl.rows[j].cells[i].colSpan - 1; k++) {
outStr += " t";
}
}
if (i == 0) {
if (rows == 0 && curTbl.rows[j].cells[i].rowSpan > 1) {
rows = curTbl.rows[j].cells[i].rowSpan - 1;
}
}
}
outStr += "rn";
}
}
else {
outStr = null;
alert(inTbl + "不存在 !");
}
return outStr;
}
function getExcelFileName() {
var d = new Date();
var curYear = d.getYear();
var curMonth = "" + (d.getMonth() + 1);
var curDate = "" + d.getDate();
var curHour = "" + d.getHours();
var curMinute = "" + d.getMinutes();
var curSecond = "" + d.getSeconds();
if (curMonth.length == 1) {
curMonth = "0" + curMonth;
}
if (curDate.length == 1) {
curDate = "0" + curDate;
}
if (curHour.length == 1) {
curHour = "0" + curHour;
}
if (curMinute.length == 1) {
curMinute = "0" + curMinute;
}
if (curSecond.length == 1) {
curSecond = "0" + curSecond;
}
var fileName = "table" + "_" + curYear + curMonth + curDate + "_"
+ curHour + curMinute + curSecond + ".csv";
return fileName;
}
function doFileExport(inName, inStr) {
var xlsWin = null;
if (!!document.all("glbHideFrm")) {
xlsWin = glbHideFrm;
}
else {
var width = 6;
var height = 4;
var openPara = "left=" + (window.screen.width / 2 - width / 2)
+ ",top=" + (window.screen.height / 2 - height / 2)
+ ",scrollbars=no,width=" + width + ",height=" + height;
xlsWin = window.open("", "_blank", openPara);
}
xlsWin.document.write(inStr);
xlsWin.document.close();
xlsWin.document.execCommand('Saveas', true, inName);
xlsWin.close();
}
//第四種
function method4(tableid){
var curTbl = document.getElementById(tableid);
var oXL;
try{
oXL = new ActiveXObject("Excel.Application"); //創建AX對象excel
}catch(e){
alert("無法啟動Excel!\n\n如果您確信您的電腦中已經安裝了Excel，"+"那么請調整IE的安全級別。\n\n具體操作：\n\n"+"工具 → Internet選項 → 安全 → 自定義級別 → 對沒有標記為安全的ActiveX進行初始化和腳本運行 → 啟用");
return false;
}
var oWB = oXL.Workbooks.Add(); //獲取workbook對象
var oSheet = oWB.ActiveSheet;//激活當前sheet
var sel = document.body.createTextRange();
sel.moveToElementText(curTbl); //把表格中的內容移到TextRange中
sel.select(); //全選TextRange中內容
sel.execCommand("Copy");//復制TextRange中內容
oSheet.Paste();//粘貼到活動的EXCEL中
oXL.Visible = true; //設置excel可見屬性
var fname = oXL.Application.GetSaveAsFilename("將table導出到excel.xls", "Excel Spreadsheets (*.xls), *.xls");
oWB.SaveAs(fname);
oWB.Close();
oXL.Quit();
}
//第五種方法
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>{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>
</head>
<body>
<div >
<button type="button" onclick="method1('tableExcel')">導出Excel方法一</button>
<button type="button" onclick="method2('tableExcel')">導出Excel方法二</button>
<button type="button" onclick="getXlsFromTbl('tableExcel','myDiv')">導出Excel方法三</button>
<button type="button" onclick="method4('tableExcel')">導出Excel方法四</button>
<button type="button" onclick="method5('tableExcel')">導出Excel方法五</button>
</div>
<div id="myDiv">
<table id="tableExcel" width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td colspan="5">html 表格導出道Excel</td>
</tr>
<tr>
<td>列標題1</td>
<td>列標題2</td>
<td>類標題3</td>
<td>列標題4</td>
<td>列標題5</td>
</tr>
<tr>
<td>aaa</td>
<td>bbb</td>
<td>ccc</td>
<td>ddd</td>
<td>eee</td>
</tr>
<tr>
<td>AAA</td>
<td>BBB</td>
<td>CCC</td>
<td>DDD</td>
<td>EEE</td>
</tr>
<tr>
<td>FFF</td>
<td>GGG</td>
<td>HHH</td>
<td>III</td>
<td>JJJ</td>
</tr>
</table>
</div>
</body>
</html>
