我找到了以下内容,它适用于 Chrome(63)、Firefox(57) 和 IE11。简而言之,您可以通过切片和连接表行来创建一个 csv。接下来,您创建一个“text/csv”类型的 Blob,最后使用锚点“a”标签的下载属性下载它,这样页面就不会导航到该文件。
var xport = {
_fallbacktoCSV: true,
toXLS: function(tableId, filename) {
this._filename = (typeof filename == 'undefined') ? tableId : filename;
//var ieVersion = this._getMsieVersion();
//Fallback to CSV for IE & Edge
if ((this._getMsieVersion() || this._isFirefox()) && this._fallbacktoCSV) {
return this.toCSV(tableId);
} else if (this._getMsieVersion() || this._isFirefox()) {
alert("Not supported browser");
}
//Other Browser can download xls
var htmltable = document.getElementById(tableId);
var html = htmltable.outerHTML;
this._downloadAnchor("data:application/vnd.ms-excel" + encodeURIComponent(html), 'xls');
},
toCSV: function(tableId, filename) {
this._filename = (typeof filename === 'undefined') ? tableId : filename;
// Generate our CSV string from out HTML Table
var csv = this._tableToCSV(document.getElementById(tableId));
// Create a CSV Blob
var blob = new Blob([csv], { type: "text/csv" });
// Determine which approach to take for the download
if (navigator.msSaveOrOpenBlob) {
// Works for Internet Explorer and Microsoft Edge
navigator.msSaveOrOpenBlob(blob, this._filename + ".csv");
} else {
this._downloadAnchor(URL.createObjectURL(blob), 'csv');
}
},
_getMsieVersion: function() {
var ua = window.navigator.userAgent;
var msie = ua.indexOf("MSIE ");
if (msie > 0) {
// IE 10 or older => return version number
return parseInt(ua.substring(msie + 5, ua.indexOf(".", msie)), 10);
}
var trident = ua.indexOf("Trident/");
if (trident > 0) {
// IE 11 => return version number
var rv = ua.indexOf("rv:");
return parseInt(ua.substring(rv + 3, ua.indexOf(".", rv)), 10);
}
var edge = ua.indexOf("Edge/");
if (edge > 0) {
// Edge (IE 12+) => return version number
return parseInt(ua.substring(edge + 5, ua.indexOf(".", edge)), 10);
}
// other browser
return false;
},
_isFirefox: function(){
if (navigator.userAgent.indexOf("Firefox") > 0) {
return 1;
}
return 0;
},
_downloadAnchor: function(content, ext) {
var anchor = document.createElement("a");
anchor.style = "display:none !important";
anchor.id = "downloadanchor";
document.body.appendChild(anchor);
// If the [download] attribute is supported, try to use it
if ("download" in anchor) {
anchor.download = this._filename + "." + ext;
}
anchor.href = content;
anchor.click();
anchor.remove();
},
_tableToCSV: function(table) {
// We'll be co-opting `slice` to create arrays
var slice = Array.prototype.slice;
return slice
.call(table.rows)
.map(function(row) {
return slice
.call(row.cells)
.map(function(cell) {
return '"t"'.replace("t", cell.textContent);
})
.join(",");
})
.join("\r\n");
}
};