js-xlsx读取xlsx文件的异步详解

web前端|js教程

javascript,js-xlsx,xlsx

web前端-js教程请求主要函数:

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function fetchAB(url, cb) { var xhr = new XMLHttpRequest; xhr.open(get, url, true); xhr.responseType = arraybuffer; xhr.onload = cb; xhr.send(); };

结合js-xlsx读取xlsx文件在线示例:

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function fetchAB(url, cb) { var xhr = new XMLHttpRequest; xhr.open(get, url, true); xhr.responseType = arraybuffer; xhr.onload = cb; xhr.send(); };var wb; var url = "" function importf() {//导入 url = document.getElementById("url").value; if (url) {fetchAB(url, function () { if (this.status == 200) { wb = XLSX.read(btoa(fixdata(this.response)), {//手动转化 type: ase64 }); document.getElementById("demo").innerHTML = JSON.stringify(XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]])); }}); } } function fixdata(data) { var o = "",l = 0,w = 10240; for (; l < data.byteLength / w; ++l) o += String.fromCharCode.apply(null, new Uint8Array(data.slice(l * w, l * w + w))); o += String.fromCharCode.apply(null, new Uint8Array(data.slice(l * w))); return o; }

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