如何使用angularjs / javascript將HTML表導出到Excel

Question

我已經寫了下面的代碼來下載文件。 它正在為有限的記錄工作。 現在我的記錄數超過12000。然后它掛起了瀏覽器，文件未下載

var ua = window.navigator.userAgent;
var msie = ua.indexOf("MSIE ");
var edgetype = ua.indexOf("Edge");
var blobObject;
if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./)) {
    expExcelIframe.document.open("txt/html", "replace");
    expExcelIframe.document.write(html);
    expExcelIframe.document.close();
    expExcelIframe.focus();
    expExcelIframe.document.execCommand("SaveAs", true, fileName);
}
else if (edgetype > 0) {
    blobObject = new Blob([html]);
    window.navigator.msSaveOrOpenBlob(blobObject, fileName);
}
else {
    window.open('data:application/vnd.ms-excel,' + encodeURIComponent(html));
}

Answer 1

替換encodeURIComponent ：

慢

 window.open('data:application/vnd.ms-excel,' + encodeURIComponent(html)); 

更好

var blob = new Blob([html],{type: 'data:application/vnd.ms-excel' });
var u = URL.createObjectURL(blob);
window.open(u);

這避免了轉換為base64所需的占用大量內存和計算資源的步驟。