前端工具篇 - 纯前端 js-xlsx 实现导入导出功能
官方示例
开源地址
插件下载
导入示例
引用
<script src="http://oss.sheetjs.com/js-xlsx/xlsx.full.min.js"></script>
html
<input type="file" onchange="importfile(this)" /> <div id="demo"></div>
js
<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 importfile(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("demo").innerHTML= 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;
}
</script>
完整示例如下：
点击查看代码
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<!--xlsx.full.min.js 引用-->
<script src="http://oss.sheetjs.com/js-xlsx/xlsx.full.min.js"></script>
</head>
<body>
<input type="file" onchange="importfile(this)" />
<div id="demo"></div>
<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 importfile(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("demo").innerHTML= 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;
}
</script>
</body>
</html>
导出示例
点击查看代码
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<button onclick="downloadExl(jsono)">导出</button>
<script src="http://oss.sheetjs.com/js-xlsx/xlsx.full.min.js"></script>
<!--调用FileSaver saveAs函数可以实现文件下载-->
<!--<script src="http://sheetjs.com/demos/Blob.js"></script>
<script src="http://sheetjs.com/demos/FileSaver.js"></script>-->
<script>
//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;
}
}
</script>
</body>
</html>
