html中
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Download Excel in HTML</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.17.2/xlsx.full.min.js"></script>
</head>
<body>
<form>
<input type="file" id="excelFile" accept=".xlsx, .xls" />
<input type="button" value="Read Excel" onclick="readExcel()" />
</form>
<div id="excelContent"></div>
<button onclick="downloadExcel()">Download Excel</button>
<script>
function readExcel() {
var fileInput = document.getElementById('excelFile');
var excelContentDiv = document.getElementById('excelContent');
var file = fileInput.files[0];
var reader = new FileReader();
reader.onload = function (e) {
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, { type: 'array' });
var sheetName = workbook.SheetNames[0];
var sheet = workbook.Sheets[sheetName];
var excelData = null;
excelData = XLSX.utils.sheet_to_json(sheet, { header: 0 });
// excelData = XLSX.utils.sheet_to_json(sheet, { header: 1 });
console.log(excelData)
excelContentDiv.innerHTML = JSON.stringify(excelData);
};
reader.readAsArrayBuffer(file);
}
function downloadExcel() {
let exportExcelData = [[1,1],[22,2222]];
if (exportExcelData) {
let ws = XLSX.utils.aoa_to_sheet(exportExcelData);
let wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, "Sheet 1");
XLSX.writeFile(wb, '1.xlsx');
} else {
alert("No Excel data available. Please upload an Excel file first.");
}
}
</script>
</body>
</html>
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