js数据 使用xlsx.full.min.js 生成excel

var deviceList = [
["姓名","性别","年龄"],
["小明","男","23"]
]
var sheet = XLSX.utils.aoa_to_sheet(deviceList);
openDownloadDialog(sheet2blob(sheet), 'device-user-table.xlsx');

// 下面两个是网上的大神封装的函数
// 将一个sheet转成最终的excel文件的blob对象
function sheet2blob(sheet, sheetName) {
sheetName = sheetName || 'sheet1';
var workbook = {
SheetNames: [sheetName],
Sheets: {}
};
workbook.Sheets[sheetName] = sheet;
// 生成excel的配置项
var wopts = {
bookType: 'xlsx', // 要生成的文件类型
bookSST: false, // 是否生成Shared String Table，官方解释是，如果开启生成速度会下降，但在低版本IOS设备上有更好的兼容性
type: 'binary'
};
var wbout = XLSX.write(workbook, wopts);
var blob = new Blob([s2ab(wbout)], { type: "application/octet-stream" });
// 字符串转ArrayBuffer
function s2ab(s) {
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;
}
return blob;
}

/**
* 通用的打开下载对话框方法，没有测试过具体兼容性
* @param url 下载地址，也可以是一个blob对象，必选
* @param saveName 保存文件名，可选
*/
function openDownloadDialog(url, saveName) {

if (typeof url == 'object' && url instanceof Blob) {
url = URL.createObjectURL(url); // 创建blob地址
}
var aLink = document.createElement('a');
aLink.href = url;
aLink.download = saveName || ''; // HTML5新增的属性，指定保存文件名，可以不要后缀，注意，file:///模式下不会生效
var event;
if (window.MouseEvent) event = new MouseEvent('click');
else {
event = document.createEvent('MouseEvents');
event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
}
aLink.dispatchEvent(event);
}