"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);
}
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, name) {
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" }), name + '.' + (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;
}
}
function downloadXLSById(idName,fileName){
var title = new Array();
$(`#${idName} table thead tr th`).each(function(i,v){
title.push(v.textContent);
});
var jsonData = [];
$("#"+idName+" table tbody tr").each(function(i,v){
var data = {};
v.childNodes.forEach(function(value,index){
data[title[index]] = $.trim(value.textContent);
});
jsonData.push(data);
});
downloadExl(jsonData,fileName);
}
调用方式
downloadXLSById(idName,fileName);
idName : table 的上级p的 id值
fileName : 保存的文件名称
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关键词：JavaScript备份Excel的代码示例