html如何实现文档导入导出,纯前端利用 js-xlsx 实现 Excel 文件导入导出功能示例(2)...

导入功能实现

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();

var name = f.name;

reader.onload = function (e) {

var data = e.target.result;

var wb;

if (rABS) {

wb = XLSX.read(data, { type: 'binary' });

} else {

var arr = fixdata(data);

wb = XLSX.read(btoa(arr), { type: 'base64' });

}

document.getElementById("demo").innerHTML = JSON.stringify(XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]]));

};

if (rABS) reader.readAsBinaryString(f);

else reader.readAsArrayBuffer(f);

}

}

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;

}

2.导出功能的实现

注意:导出其他格式文件可能会出现乱码问题,如有好的解决方案请留言

导出

//如果使用 FileSaver.js 就不要同时使用以下函数

function saveAs(obj, fileName) {//当然可以自定义简单的下载文件实现方式

var tmpa = document.createElement("a");

tmpa.download = fileName || "下载";

tmpa.href = URL.createObjectURL(obj); //绑定a标签

tmpa.click(); //模拟点击实现下载

setTimeout(function () { //延时释放

URL.revokeObjectURL(obj); //用URL.revokeObjectURL()来释放这个object URL

}, 100);

}

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"

}];

const wopts = { bookType: 'xlsx', bookSST: false, type: 'binary' };//这里的数据是用来定义导出的格式类型

// const wopts = { bookType: 'csv', bookSST: false, type: 'binary' };//ods格式

// const wopts = { bookType: 'ods', bookSST: false, type: 'binary' };//ods格式

// const wopts = { bookType: 'xlsb', bookSST: false, type: 'binary' };//xlsb格式

// const wopts = { bookType: 'fods', bookSST: false, type: 'binary' };//fods格式

// const wopts = { bookType: 'biff2', bookSST: false, type: 'binary' };//xls格式

function downloadExl(data, type) {

const wb = { SheetNames: ['Sheet1'], Sheets: {}, Props: {} };

wb.Sheets['Sheet1'] = XLSX.utils.json_to_sheet(data);//通过json_to_sheet转成单页(Sheet)数据

saveAs(new Blob([s2ab(XLSX.write(wb, wopts))], { type: "application/octet-stream" }), "这里是下载的文件名" + '.' + (wopts.bookType=="biff2"?"xls":wopts.bookType));

}

function s2ab(s) {

if (typeof ArrayBuffer !== 'undefined') {

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;

} else {

var buf = new Array(s.length);

for (var i = 0; i != s.length; ++i) buf[i] = s.charCodeAt(i) & 0xFF;

return buf;

}

}