import
<!DOCTYPE html><html> ????<head> ???????????<meta charset="UTF-8"> ???????<title></title> ???????<script src="http://oss.sheetjs.com/js-xlsx/xlsx.full.min.js"></script> ???????????????????????<style> ???????????pre {outline: 1px solid #ccc; padding: 5px; margin: 5px; } ???????????.string { color: green; } ???????????.number { color: darkorange; } ???????????.boolean { color: blue; } ???????????.null { color: magenta; } ???????????.key { color: red; } ???????</style> ???????????</head> ???????<body> ???????????????????<input type="file"onchange="importf(this)" /> ???????<div id="demo"></div> ???????????????<pre id="result"> ???????</pre> ???????????<script> ???????/* ???????FileReader共有4种读取方法： ???????1.readAsArrayBuffer(file)：将文件读取为ArrayBuffer。 ???????2.readAsBinaryString(file)：将文件读取为二进制字符串 ???????3.readAsDataURL(file)：将文件读取为Data URL ???????4.readAsText(file, [encoding])：将文件读取为文本，encoding缺省值为‘UTF-8‘ ????????????????????*/ ???????var wb;//读取完成的数据 ???????var rABS = false; //是否将文件读取为二进制字符串 ???????function importf(obj) {//导入 ???????????if(!obj.files) { ???????????????return; ???????????} ???????????var f = obj.files[0]; ???????????var reader = new FileReader(); ???????????reader.onload = function(e) { ???????????????var data = e.target.result; ???????????????if(rABS) { ???????????????????wb = XLSX.read(btoa(fixdata(data)), {//手动转化 ???????????????????????type: ‘base64‘ ???????????????????}); ???????????????} else { ???????????????????wb = XLSX.read(data, { ???????????????????????type: ‘binary‘ ???????????????????}); ???????????????} ???????????????//wb.SheetNames[0]是获取Sheets中第一个Sheet的名字 ???????????????//wb.Sheets[Sheet名]获取第一个Sheet的数据 ???????????????document.getElementById("result").innerHTML= syntaxHighlight(XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]])); ???????????????//document.getElementById("result").innerHTML= syntaxHighlight(JSON.stringify( XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]]))); ???????????????????????????????????????????}; ???????????if(rABS) { ???????????????reader.readAsArrayBuffer(f); ???????????} else { ???????????????reader.readAsBinaryString(f); ???????????} ???????} ???????function fixdata(data) { //文件流转BinaryString ???????????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; ???????} ???????????????????????function syntaxHighlight(json) { ???????????if (typeof json != ‘string‘) { ???????????????json = JSON.stringify(json, undefined, 2); ???????????} ???????????json = json.replace(/&/g, ‘&‘).replace(/</g, ‘<‘).replace(/>/g, ‘>‘); ???????????return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function(match) { ???????????????var cls = ‘number‘; ???????????????if (/^"/.test(match)) { ???????????????????if (/:$/.test(match)) { ???????????????????????cls = ‘key‘; ???????????????????} else { ???????????????????????cls = ‘string‘; ???????????????????} ???????????????} else if (/true|false/.test(match)) { ???????????????????cls = ‘boolean‘; ???????????????} else if (/null/.test(match)) { ???????????????????cls = ‘null‘; ???????????????} ???????????????return ‘<span class="‘ + cls + ‘">‘ + match + ‘</span>‘; ???????????}); ???????} ????????</script> ???</body></html>export
<!DOCTYPE html><html> <head> ???<meta charset="UTF-8"> ???<title></title> ???<script src="http://oss.sheetjs.com/js-xlsx/xlsx.full.min.js"></script></head> <body> ???<button onclick="downloadExl(jsono)">导出</button> ???<!-- ???????????以下a标签不需要内容 ???????--> ???<a href="" download="这里是下载的文件名.xlsx" id="hf"></a> ???<script> ???????var jsono = [{ //测试数据 ???????????"保质期临期预警(天)": "adventLifecycle", ???????????"商品标题": "title", ???????????"建议零售价": "defaultPrice", ???????????"高(cm)": "height", ???????????"商品描述": "Description", ???????????"保质期禁售(天)": "lockupLifecycle", ???????????"商品名称": "skuName", ???????????"商品简介": "brief", ???????????"宽(cm)": "width", ???????????"阿达": "asdz", ???????????"货号": "goodsNo", ???????????"商品条码": "skuNo", ???????????"商品品牌": "brand", ???????????"净容积(cm^3)": "netVolume", ???????????"是否保质期管理": "isShelfLifeMgmt", ???????????"是否串号管理": "isSNMgmt", ???????????"商品颜色": "color", ???????????"尺码": "size", ???????????"是否批次管理": "isBatchMgmt", ???????????"商品编号": "skuCode", ???????????"商品简称": "shortName", ???????????"毛重(g)": "grossWeight", ???????????"长(cm)": "length", ???????????"英文名称": "englishName", ???????????"净重(g)": "netWeight", ???????????"商品分类": "categoryId", ???????????"这里超过了": 1111.0, ???????????"保质期(天)": "expDate" ???????}]; ???????var tmpDown; //导出的二进制对象 ???????function downloadExl(json, type) { ???????????var tmpdata = json[0]; ???????????json.unshift({}); ???????????var keyMap = []; //获取keys ???????????for (var k in tmpdata) { ???????????????keyMap.push(k); ???????????????json[0][k] = k; ???????????} ?????????var tmpdata = [];//用来保存转换好的json ????????????????json.map((v, i) => keyMap.map((k, j) => Object.assign({}, { ???????????????????v: v[k], ???????????????????position: (j > 25 ? getCharCol(j) : String.fromCharCode(65 + j)) + (i + 1) ???????????????}))).reduce((prev, next) => prev.concat(next)).forEach((v, i) => tmpdata[v.position] = { ???????????????????v: v.v ???????????????}); ???????????????var outputPos = Object.keys(tmpdata); //设置区域,比如表格从A1到D10 ???????????????var tmpWB = { ???????????????????SheetNames: [‘mySheet‘], //保存的表标题 ???????????????????Sheets: { ???????????????????????‘mySheet‘: Object.assign({}, ???????????????????????????tmpdata, //内容 ???????????????????????????{ ???????????????????????????????‘!ref‘: outputPos[0] + ‘:‘ + outputPos[outputPos.length - 1] //设置填充区域 ???????????????????????????}) ???????????????????} ???????????????}; ???????????????tmpDown = new Blob([s2ab(XLSX.write(tmpWB, ????????????????????{bookType: (type == undefined ? ‘xlsx‘:type),bookSST: false, type: ‘binary‘}//这里的数据是用来定义导出的格式类型 ???????????????????))], { ???????????????????type: "" ???????????????}); //创建二进制对象写入转换好的字节流 ???????????var href = URL.createObjectURL(tmpDown); //创建对象超链接 ???????????document.getElementById("hf").href = href; //绑定a标签 ???????????document.getElementById("hf").click(); //模拟点击实现下载 ???????????setTimeout(function() { //延时释放 ???????????????URL.revokeObjectURL(tmpDown); //用URL.revokeObjectURL()来释放这个object URL ???????????}, 100); ???????} ????????function s2ab(s) { //字符串转字符流 ???????????var buf = new ArrayBuffer(s.length); ???????????var view = new Uint8Array(buf); ???????????for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF; ???????????return buf; ???????} ????????// 将指定的自然数转换为26进制表示。映射关系：[0-25] -> [A-Z]。 ???????function getCharCol(n) { ???????????let temCol = ‘‘, ???????????s = ‘‘, ???????????m = 0 ???????????while (n > 0) { ???????????????m = n % 26 + 1 ???????????????s = String.fromCharCode(m + 64) + s ???????????????n = (n - m) / 26 ???????????} ???????????return s ???????} ???</script></body> </html>参考
https://blog.csdn.net/weixin_36185028/article/details/78685844
html读写excle文档
原文地址：https://www.cnblogs.com/dong1/p/9482062.html