Jsp的table导出Excel

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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 exportToExcel(tableid ) {//整个表格拷贝到EXCEL中
if(getExplorer()=='ie'){
var curTbl = document.getElementById(tableid);
var oXL = new ActiveXObject("Excel.Application"); //创建AX对象excel
var oWB = oXL.Workbooks.Add();
//获取workbook对象
var xlsheet = oWB.Worksheets(1);
//激活当前sheet
var sel = document.body.createTextRange();
sel.moveToElementText(curTbl);
//把表格中的内容移到TextRange中
sel.select;
//全选TextRange中内容
sel.execCommand("Copy");
//复制TextRange中内容
xlsheet.Paste();
//粘贴到活动的EXCEL中
oXL.Visible = true;
//设置excel可见属性 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);
//xls.visible = false;
oXL.Quit();
oXL = null;
//结束excel进程，退出完成
//window.setInterval("Cleanup();",1);
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 xmlns:o="urn:schemas-microsoft-com:office:office" '
+'xmlns:x="urn:schemas-microsoft-com:office:excel" '
+'xmlns="http://www.w3.org/TR/REC-html40">'
+'<head>'
+''
+'</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))
}
})()