假设我有这个循环代码。
for (var i = 0; i < originList.length; i++) {
var results = response.rows[i].elements;
for (var j = 0; j < results.length; j++) {
outputDiv.innerHTML += results[j].distance.text + ',';
}
}
我想使用此代码将outputDiv.innerHTML导出到CSV,但是它不起作用。
function downloadFile(fileName, urlData) {
var aLink = document.createElement('a');
aLink.download = fileName;
aLink.href = urlData;
var event = new MouseEvent('click');
aLink.dispatchEvent(event);
}
downloadFile('output.csv', 'outputDiv.innerHTML/csv;charset=UTF-8,' + encodeURIComponent(outputDiv.innerHTML));
我该怎么办?我是新来的。谢谢。
最佳答案
此解决方案使用JavaScript。我在按钮上添加了事件侦听器,因此单击该按钮时,它将捕获outerHTML
的<table>
。outerHTML
本质上包括元素的开始和结束标签以及内容,而innerHTML
不包括元素的开始和结束标签。
来自MDN Web Docs
Element DOM接口的outerHTML
属性获取描述元素(包括其后代)的序列化HTML片段。也可以设置为将元素替换为从给定字符串解析的节点。
从所有行和列中提取innerText
时。 download_csv
被调用。
您可以使用file-like object of immutable, raw data的Blob
对象下载数据。
document.querySelector("button").addEventListener("click", function () {
let html = document.querySelector("table").outerHTML;
exportToCSV(html, "table.csv");
});
function exportToCSV(html, filename) {
let csv = [];
// grab all rows inside table
let rows = document.querySelectorAll("table tr");
let row, cols;
for (let i = 0; i < rows.length; i++) {
row = []; // will hold innerText of all columns
// retrieve all columns of row
cols = rows[i].querySelectorAll("td, th");
for (let j = 0; j < cols.length; j++){
// push column innerText
row.push(cols[j].innerText);
}
// push all innerText into CSV
csv.push(row.join(","));
}
console.log("Extracted content from html:",csv);
// Download CSV
download_csv(csv.join("\n"), filename);
}
function download_csv(csv, filename) {
let csvFile;
let downloadLink;
// CSV FILE
csvFile = new Blob([csv], {type: "text/csv"});
// create an element and set the file name.
downloadLink = document.createElement("a");
downloadLink.download = filename;
// We have to create a link to the file
downloadLink.href = window.URL.createObjectURL(csvFile);
// prevent link from being shown
downloadLink.style.display = "none";
// Add the link to your DOM
document.body.appendChild(downloadLink);
// start the download
downloadLink.click();
}
<table>
<tr><th>Name</th><th>Age</th><th>Country</th></tr>
<tr><td>Tony</td><td>26</td><td>USA</td></tr>
<tr><td>Levi</td><td>19</td><td>Spain</td></tr>
<tr><td>Calvin</td><td>32</td><td>Russia</td></tr>
</table>
<button>Export HTML table to CSV file</button>