导入文件用到一个 xlsx.core.js 的包。
- html>
- <html lang="en">
-
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <script type="text/javascript" src="./xlsx.core.min.js">script>
- <title>Documenttitle>
- head>
-
- <body>
- <input type="file" id="file" style="display:none;" />
- <button onclick="importFile()">导入button>
- body>
- <script type="text/javascript" src="./index.js">script>
- html>
隐藏 input 框,加一个 button 按钮可以方便的调节按钮的样式。
- function importFile() {
- console.log('导入');
- document.getElementById('file').click();
- }
-
- document.getElementById('file').addEventListener('change', function (e) {
- let files = e.target.files;
- if (files.length == 0) return;
- let f = files[0];
-
- if (!/\.xlsx$/g.test(f.name)) {
- alert('仅支持读取xlsx格式!');
- return;
- }
- e.target.value = "" // 清空上一次上传的数据,防止第二次无法上传
- readWorkbookFromLocalFile(f, function (workbook) {
- readWorkbook(workbook);
- });
- });
-
- function readWorkbookFromLocalFile(file, callback) {
- let reader = new FileReader();
- reader.onload = function (e) {
- let data = e.target.result;
- let workbook = XLSX.read(data, { type: 'binary' });
- if (callback) callback(workbook);
- };
- reader.readAsBinaryString(file);
- }
-
- function readWorkbook(workbook) {
- let sheetNames = workbook.SheetNames; // 工作表名称集合
- console.log(sheetNames, 'sheetNames');
- let worksheet = workbook.Sheets[sheetNames[0]]; // 读取第一张sheet
- console.log(worksheet, 'worksheet');
- let json = XLSX.utils.sheet_to_json(worksheet);
- // let json = XLSX.utils.sheet_to_json(worksheet, { range: 1 }) // range: 1 可以设置是从第几行开始读,不设置从第一行开始读
- console.log(json, 'json');
- }
文件信息。
页面上取值。