我正在使用以下 将 HTML 表数据导出为 CSV 作为起点,但我的问题是,如果 html 数据中的数据包含逗号,会发生什么。我应该在
csv.push(row.join(","));
中放入什么,以便带逗号的数据不会被推送到下一列?
这是我正在使用的代码:
function exportTableToCSV(filename) {
var csv = [];
var rows = document.querySelectorAll("table tr");
for (var i = 0; i < rows.length; i++) {
var row = [], cols = rows[i].querySelectorAll("td, th");
for (var j = 0; j < cols.length; j++)
row.push(cols[j].innerText);
csv.push(row.join(","));
}
// Download CSV file
downloadCSV(csv.join("\n"), filename);
}
function downloadCSV(csv, filename) {
var csvFile;
var downloadLink;
// CSV file
csvFile = new Blob([csv], {type: "text/csv"});
// Download link
downloadLink = document.createElement("a");
// File name
downloadLink.download = filename;
// Create a link to the file
downloadLink.href = window.URL.createObjectURL(csvFile);
// Hide download link
downloadLink.style.display = "none";
// Add the link to DOM
document.body.appendChild(downloadLink);
// Click download link
downloadLink.click();
}
/* W3.CSS 4.13 June 2019 by Jan Egil and Borge Refsnes */
html{box-sizing:border-box}*,*:before,*:after{box-sizing:inherit}
.w3-container:after,.w3-container:before,.w3-panel:after,.w3-panel:before,.w3-row:after,.w3-row:before,.w3-row-padding:after,.w3-row-padding:before,
.w3-container,.w3-panel{padding:0.01em 16px}.w3-panel{margin-top:16px;margin-bottom:16px}
table {
font-family: arial, sans-serif;
border-collapse: collapse;
width: 100%;
}
td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
tr:nth-child(even) {
background-color: white;
}
tr:nth-child(odd) {
background-color: white;
}
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="google" content="notranslate">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<div class="w3-container w3-orange" >
<h2 class="w3-animate-left">Server Table</h2>
<form>
<table id="bob">
<tr>
<th>Process Number</th>
<th>Connection String</th>
<th>Database Name</th>
<th>Table Name</th>
<th>Run Status</th>
</tr>
<tr>
<td>1</td>
<td>Server1,1433</td>
<td>tempdb</td>
<td>Table1</td>
<td>Pass</td>
</tr>
<tr>
<td>2</td>
<td>Server2,1433</td>
<td>tempdb</td>
<td>Table3</td>
<td>Pass</td>
</tr>
</table>
<p></p>
<p></p>
<button onclick="exportTableToCSV('Server_Data.csv')">Export Results To CSV File</button>
</form>
</div>
</body></html>
当您获得内部文本时,请用引号将内容括起来。这将防止 CSV 将逗号读取为分隔符,而是将其保留为单个单元格。
下面是上面的代码,我刚刚删除了 FORM 元素,以便您可以在此处实际运行它。
线路变更:
row.push('"' + cols[j].innerText + '"');
或者使用模板字符串使其更清晰:
row.push(`"${cols[j].innerText}"`);
function exportTableToCSV(filename) {
var csv = [];
var rows = document.querySelectorAll("table tr");
for (var i = 0; i < rows.length; i++) {
var row = [], cols = rows[i].querySelectorAll("td, th");
for (var j = 0; j < cols.length; j++)
row.push('"' + cols[j].innerText + '"');
csv.push(row.join(","));
}
// Download CSV file
downloadCSV(csv.join("\n"), filename);
}
function downloadCSV(csv, filename) {
var csvFile;
var downloadLink;
// CSV file
csvFile = new Blob([csv], {type: "text/csv"});
// Download link
downloadLink = document.createElement("a");
// File name
downloadLink.download = filename;
// Create a link to the file
downloadLink.href = window.URL.createObjectURL(csvFile);
// Hide download link
downloadLink.style.display = "none";
// Add the link to DOM
document.body.appendChild(downloadLink);
// Click download link
downloadLink.click();
}
/* W3.CSS 4.13 June 2019 by Jan Egil and Borge Refsnes */
html{box-sizing:border-box}*,*:before,*:after{box-sizing:inherit}
.w3-container:after,.w3-container:before,.w3-panel:after,.w3-panel:before,.w3-row:after,.w3-row:before,.w3-row-padding:after,.w3-row-padding:before,
.w3-container,.w3-panel{padding:0.01em 16px}.w3-panel{margin-top:16px;margin-bottom:16px}
table {
font-family: arial, sans-serif;
border-collapse: collapse;
width: 100%;
}
td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
tr:nth-child(even) {
background-color: white;
}
tr:nth-child(odd) {
background-color: white;
}
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="google" content="notranslate">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<div class="w3-container w3-orange" >
<h2 class="w3-animate-left">Server Table</h2>
<table id="bob">
<tr>
<th>Process Number</th>
<th>Connection String</th>
<th>Database Name</th>
<th>Table Name</th>
<th>Run Status</th>
</tr>
<tr>
<td>1</td>
<td>Server1,1433</td>
<td>tempdb</td>
<td>Table1</td>
<td>Pass</td>
</tr>
<tr>
<td>2</td>
<td>Server2,1433</td>
<td>tempdb</td>
<td>Table3</td>
<td>Pass</td>
</tr>
</table>
<p></p>
<p></p>
<button onclick="exportTableToCSV('Server_Data.csv')">Export Results To CSV File</button>
</div>
</body></html>
您可以传递表格组件以将表格导出为 CSV。
const downloadTableAsCSV = (table, filename) => {
const csv = Array.from(table.find('tr')).reduce((acc, row) => {
const cols = Array.from($(row).find('td, th'));
const rowData = cols.map((col) => `"${$(col).text().trim()}"`);
acc.push(rowData.join(','));
return acc;
}, []);
const csvContent = `data:text/csv;charset=utf-8,${csv.join('\n')}`;
const encodedUri = encodeURI(csvContent);
const link = document.createElement('a');
link.setAttribute('href', encodedUri);
link.setAttribute('download', filename);
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
};