JS 在页面上直接将json数据导出到excel，支持chrome,edge,IE10+,IE9,IE8,Safari,Firefox

<html>
<head>
</head>
<body>

<script type="text/javascript">

function jsexport(){
var jsonData = [{name:"张三", sex:"男", age:46},{name:"李四", sex:"男", age:20},{name:"王五", sex:"男", age:33},{name:"赵六", sex:"男", age:80}];

var GridData = JSON.parse(JSON.stringify(jsonData))
JSONToCSV(GridData, "UserReport.csv", true);
}

var blob;
var filename;
function c(){
window.navigator.msSaveOrOpenBlob(blob, filename);
}

function JSONToCSV(JSONData, ReportName, ShowLabel) {
var arrData = typeof JSONData != 'object' ? JSON.parse(JSONData) : JSONData;
var CSV = '';
if (ShowLabel) {
var row = "";

for (var index in arrData[0]) {
row += index + ',';
}
row = row.slice(0, -1);
CSV += row + '\r\n';
}

for (var i = 0; i < arrData.length; i++) {
var row = "";
for (var index in arrData[i]) {
row += '"' + arrData[i][index] + '",';
}
row.slice(0, row.length - 1);
//add a line break after each row
CSV += row + '\r\n';
console.log(CSV);
}

if (CSV == '') {
alert("数据有错误");
return;
}

var link = document.createElement("a");
link.id="lnkDwnldLnk";
link.name="lnkDwnldLnk";
link.setAttribute("style", "display:none");

var ifdo = document.createElement("iframe");
ifdo.id="ifdiframe";
ifdo.name="ifdiframe";
ifdo.setAttribute("style", "display:none");

document.body.appendChild(link);
document.body.appendChild(ifdo);

var csv = CSV;
try
{
blob = new Blob([csv], { type: 'text/txt' });
}
catch (e)
{
blob = [csv];
}

var csvUrl = "";
filename = ReportName;
if (window.navigator.userAgent.indexOf("Chrome") >= 1 || window.navigator.userAgent.indexOf("Safari") >= 1) {
csvUrl = window.webkitURL.createObjectURL(blob);
link.setAttribute("download", filename);
link.setAttribute("href", csvUrl);
link.click();
}
if (window.navigator.userAgent.indexOf("Firefox") >= 1) {
csvUrl = window.URL.createObjectURL(blob);
link.setAttribute("download", filename);
link.setAttribute("href", csvUrl);
link.click();
}
else {
if(window.navigator.msSaveOrOpenBlob) { //IE>=10
link.addEventListener('click', function() {
window.navigator.msSaveOrOpenBlob(blob, filename);
});
link.click();

} else { //支持IE9、IE8; IE7及以下暂不支持，因为不支持JSON
var ifd = document.getElementById('ifdiframe').contentDocument;
ifd.open('text/plain', 'replace');
ifd.write('\r\n\r\n' + csv);
ifd.close();
ifd.execCommand('SaveAs', null, filename);
}
}

document.body.removeChild(link);
document.body.removeChild(ifdo);
}

</script>
<input type="Button" id="bygen" value="导出" onclick="jsexport()"/ >

<br>
<a id="mydownload" name="mydownload" href="#" >导出</a>

</html>