使用 Javascript 将 HTML 表格下载到 Excel
在我的 Flask 应用程序中,我创建了一个按钮来将 HTML 表的内容提取到 Excel 文件中。我使用 Javascript 从界面中提取 Excel 格式的 HTML 表格内容。
不幸的是,当我运行下面的代码时,下载的 Excel 文件是空的。您能帮助纠正我下面的代码吗?谢谢。
function exportTableToExcel(filename = ''){
let downloadLink;
let dataType = 'application/vnd.ms-excel';
let tableSelect = document.getElementsByTagName("table");
let tableHTML = tableSelect[0].outerHTML.replace(/ /g, '%20');
// Specify file name
filename = 'All_Issues.xls';
// Create download link element
downloadLink = document.createElement("a");
document.body.appendChild(downloadLink);
if(navigator.msSaveOrOpenBlob){
var blob = new Blob(['\ufeff', tableHTML], {
type: dataType
});
navigator.msSaveOrOpenBlob( blob, filename);
}else{
// Create a link to the file
downloadLink.href = 'data:' + dataType + ', ' + tableHTML;
// Setting the file name
downloadLink.download = filename;
//triggering the function
downloadLink.click();
}
}
In my Flask application, I created a button to extract the content of an HTML table into an Excel file. I used Javascript to extract from my interface the content of my HTML table in Excel format.
Unfortunately, when I run the code below, the downloaded Excel file is empty. Could you please help to correct my code below. Thanks.
function exportTableToExcel(filename = ''){
let downloadLink;
let dataType = 'application/vnd.ms-excel';
let tableSelect = document.getElementsByTagName("table");
let tableHTML = tableSelect[0].outerHTML.replace(/ /g, '%20');
// Specify file name
filename = 'All_Issues.xls';
// Create download link element
downloadLink = document.createElement("a");
document.body.appendChild(downloadLink);
if(navigator.msSaveOrOpenBlob){
var blob = new Blob(['\ufeff', tableHTML], {
type: dataType
});
navigator.msSaveOrOpenBlob( blob, filename);
}else{
// Create a link to the file
downloadLink.href = 'data:' + dataType + ', ' + tableHTML;
// Setting the file name
downloadLink.download = filename;
//triggering the function
downloadLink.click();
}
}
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getElementsByTagName() 函数返回一个数组,因此您必须获取第一个元素。
The getElementsByTagName() function returns an array so you have to get the first element.