场景：导出当前页数据，不通过后台再次下载数据
代码：
/**
*@param fileName 导出文件名
* @param id 页面上需要导出数据的组件ID
* @returns
*/
var createExcle = function (id,fileName){
var table = $(document.getElementById(id)).clone();
table.attr('id','datatab');
table.appendTo('body');
method5('datatab');
datatab.remove();
function method5(tableid) {
var idTmr;
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))
var aTag = document.createElement('a');
aTag.download = fileName;
aTag.href = uri + base64(format(template, ctx));
document.body.appendChild(aTag);
aTag.onclick = function () {
document.body.removeChild(aTag);
}
aTag.click();
}
})()
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();
}
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';
}
}
}
}