话不多说，直接上图
excel 数据是这样的
结果是这样的
代码如下，需要引入xlsx.full.min.js
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>上传文件</title>
<script type="text/javascript" src='./xlsx.full.min.js'></script>
</head>
<body>
文件：<br>
<input type="file" id="file"><br>
</body>
<script>
//首先监听input框的变动，选中一个新的文件会触发change事件
document.querySelector("#file").addEventListener("change", function () {
//获取到选中的文件
var file = document.querySelector("#file").files[0];
var type = file.name.split('.');
if (type[type.length - 1] !== 'xlsx' && type[type.length - 1] !== 'xls') {
alert('只能选择excel文件导入');
return false;
}
const reader = new FileReader();
reader.readAsBinaryString(file);
reader.onload = (e) => {
const data = e.target.result;
const zzexcel = window.XLS.read(data, {
type: 'binary'
});
const result = [];
for (let i = 0; i < zzexcel.SheetNames.length; i++) {
const newData = window.XLS.utils.sheet_to_json(zzexcel.Sheets[zzexcel.SheetNames[i]]);
result.push(...newData)
}
console.log('result', result)
}
});
</script>
</html>
