html页面表格导出到excel总结

最近一个项目需要把报表的表格导入excel，在网上找了一些方法，比较研究了一下，记在这里，备忘。
表格例子如下：<table id="tableExcel" width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td colspan="5" align="center">html 表格导出道Exceltd>
tr>
<tr>
<td>列标题1td>
<td>列标题2td>
<td>类标题3td>
<td>列标题4td>
<td>列标题5td>
tr>
<tr>
<td>aaatd>
<td>bbbtd>
<td>ccctd>
<td>dddtd>
<td>eeetd>
tr>
<tr>
<td>AAAtd>
<td>BBBtd>
<td>CCCtd>
<td>DDDtd>
<td>EEEtd>
tr>
<tr>
<td>FFFtd>
<td>GGGtd>
<td>HHHtd>
<td>IIItd>
<td>JJJtd>
tr>
table>
1、js的方法

A、将整个表格拷贝到EXCEL中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;

}

B、读取表格中每个单元到EXCEL中：
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;
}
c、把表格输出到另一个页面，然后存成cvs格式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("你要导出的表不存在");
return;
}
var fileName = getExcelFileName();
doFileExport(fileName, allStr);

}

catch(e) {

alert("导出发生异常:" + 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 += "/r/n";
}
}

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();

}
总结：比较上面3种方法，感觉第一种方法比较完美一些，因为这种方法比较完整的输出表格的格式。但，第一和第二种方法都用了ActiveX 对象，对客户端的安全有要求，而且最大的问题还有一个，就是excel 对象无法关闭。第3中方法虽然没有用ActiveX 对象，但是用了弹出窗口输出， 如果禁止了弹出窗口则无法使用。

对于execl 对象无法关闭的问题，下面的方法是一个权宜方法：function Cleanup() {
window.clearInterval(idTmr);
CollectGarbage();
}

调用方法：
idTmr = window.setInterval("Cleanup();",1);

2、Asp.net(c#)中的方法

这种方法其实类似上面的js的第3中方法(也可以在其他的web脚本来实现，比如asp中vbscript，或者php)，把表格用文件流的方式

输出为excel。实例代码如下：

public void OutPutExcel(string title)
{

Response.Clear();
Response.Buffer = true;
Response.Charset = "utf-8";

Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(title + ".xls"));
Response.ContentEncoding = System.Text.Encoding.GetEncoding("utf-8");

Response.ContentType = "application/ms-excel";
Page.EnableViewState = false;

System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);

this.Page.RenderControl(oHtmlTextWriter);

string temp = oStringWriter.ToString();

Response.Write(temp);
Response.End();
}

这种方法的从本质上说并非标准的excel格式，不过把html格式的文件另存为excel的格式，然后用excel打开罢了。

3、利用ExceL Application或者MSOWC 或者ado.net

这种方法都是利用服务器的组件来时实现，要求服务端要安装excel，具体的代码可以看下面的链接：

http://www.cnblogs.com/pucumt/archive/2006/09/13/503120.html

http://support.microsoft.com/default.aspx?scid=kb;zh-cn;306023#top

我不提倡用这种方法，因为需要占用服务器的资源。

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