来源：未知 时间：2022-04-27 13:47 作者：小飞侠 阅读:次
[导读] 转载自 GITHUB用户rockboom 的翻译文档 SheetJs下载： GITHUB地址 | CSDN下载地址 基础案例 htmllang=zh-cnheadmetacharset=UTF-8titleJS读取和导出excel示例/titlemetaname=descriptioncontent=使用sheetjs读取和导出e...
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转载自 GITHUB用户rockboom 的翻译文档 基础案例<html lang="zh-cn"><head>
<meta charset="UTF-8">
<title>JS读取和导出excel示例</title>
<meta name="description" content="使用sheetjs读取和导出excel示例">
<style type="text/css">
table {
border-collapse: collapse;
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border: solid 1px #6D6D6D;
padding: 5px 10px;
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body {
background: #f4f4f4;
padding: 0;
margin: 0;
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.container {
width: 1024px;
margin: 0 auto;
background: #fff;
padding: 20px;
min-height: 100vh;
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<div class="container">
<h1>JavaScript读取和导出excel示例（基于js-xlsx）</h1>
<div>
<a href="http://blog.haoji.me/js-excel.html" _target="_blank">如何使用JavaScript实现纯前端读取和导出excel文件</a><br>
<a href="http://oss.sheetjs.com/js-xlsx/">官网演示</a><br>
<a href="https://github.com/SheetJS/js-xlsx/">Github</a>
</div>
<h2>读取excel（仅读取第一个sheet）</h2>
<div class="mt-sm">
<input type="file" id="file" style="display:none;" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.ms-excel">
<a href="javascript:selectFile()">加载本地excel文件</a>
<a href="javascript:loadRemoteFile('./sample/sample.xlsx')">加载远程excel文件</a>
</div>
<p>结果输出：（下面表格可直接编辑导出）</p>
<div id="result" contenteditable=""><table><tbody><tr><th></th><th>A</th><th>B</th><th>C</th><th>D</th></tr><tr><td>1</td><td>姓名</td><td>性别</td><td>年龄</td><td>籍贯</td></tr><tr><td>2</td><td>张三</td><td>男</td><td>18</td><td>广东惠州</td></tr><tr><td>3</td><td>李四</td><td>女</td><td>22</td><td>河北石家庄</td></tr></tbody></table></div>
<h2>导出excel</h2>
<div class="mt-sm" style="padding-bottom:40px;">
<input type="button" onclick="exportExcel()" value="保存"> 上面读取的表格您可以直接编辑，编辑后点击保存即可导出excel文件。 </div>
<h2>导出带单元格合并的excel</h2>
<input type="button" value="导出" onclick="exportSpecialExcel()">
</div>
<script type="text/javascript" src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript" src="https://static.newmorehot.com/Public/Home/assets/js/jsxlsx/xlsx.core.min.js"></script>
<script type="text/javascript">
function selectFile() {
document.getElementById('file').click();
}
// 读取本地excel文件
function readWorkbookFromLocalFile(file, callback) {
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
var workbook = XLSX.read(data, {type: 'binary'});
if(callback) callback(workbook);
};
reader.readAsBinaryString(file);
}
// 从网络上读取某个excel文件，url必须同域，否则报错
function readWorkbookFromRemoteFile(url, callback) {
var xhr = new XMLHttpRequest();
xhr.open('get', url, true);
xhr.responseType = 'arraybuffer';
xhr.onload = function(e) {
if(xhr.status == 200) {
var data = new Uint8Array(xhr.response)
var workbook = XLSX.read(data, {type: 'array'});
if(callback) callback(workbook);
}
};
xhr.send();
}
// 读取 excel文件
function outputWorkbook(workbook) {
var sheetNames = workbook.SheetNames; // 工作表名称集合
sheetNames.forEach(name => {
var worksheet = workbook.Sheets[name]; // 只能通过工作表名称来获取指定工作表
for(var key in worksheet) {
// v是读取单元格的原始值
console.log(key, key[0] === '!' ? worksheet[key] : worksheet[key].v);
}
});
}
function readWorkbook(workbook) {
var sheetNames = workbook.SheetNames; // 工作表名称集合
var worksheet = workbook.Sheets[sheetNames[0]]; // 这里我们只读取第一张sheet
var csv = XLSX.utils.sheet_to_csv(worksheet);
document.getElementById('result').innerHTML = csv2table(csv);
}
// 将csv转换成表格
function csv2table(csv)
{
var html = '<table>';
var rows = csv.split('\n');
rows.pop(); // 最后一行没用的
rows.forEach(function(row, idx) {
var columns = row.split(',');
columns.unshift(idx+1); // 添加行索引
if(idx == 0) { // 添加列索引
html += '<tr>';
for(var i=0; i<columns.length; i++) {
html += '<th>' + (i==0?'':String.fromCharCode(65+i-1)) + '</th>';
}
html += '</tr>';
}
html += '<tr>';
columns.forEach(function(column) {
html += '<td>'+column+'</td>';
});
html += '</tr>';
});
html += '</table>';
return html;
}
function table2csv(table) {
var csv = [];
$(table).find('tr').each(function() {
var temp = [];
$(this).find('td').each(function() {
temp.push($(this).html());
})
temp.shift(); // 移除第一个
csv.push(temp.join(','));
});
csv.shift();
return csv.join('\n');
}
// csv转sheet对象
function csv2sheet(csv) {
var sheet = {}; // 将要生成的sheet
csv = csv.split('\n');
csv.forEach(function(row, i) {
row = row.split(',');
if(i == 0) sheet['!ref'] = 'A1:'+String.fromCharCode(65+row.length-1)+(csv.length-1);
row.forEach(function(col, j) {
sheet[String.fromCharCode(65+j)+(i+1)] = {v: col};
});
});
return sheet;
}
// 将一个sheet转成最终的excel文件的blob对象，然后利用URL.createObjectURL下载
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);
}
$(function() {
document.getElementById('file').addEventListener('change', function(e) {
var files = e.target.files;
if(files.length == 0) return;
var f = files[0];
if(!/\.xlsx?$/g.test(f.name)) {
alert('仅支持读取xlsx格式！');
return;
}
readWorkbookFromLocalFile(f, function(workbook) {
readWorkbook(workbook);
});
});
loadRemoteFile('./sample/test.xlsx');
});
function loadRemoteFile(url) {
readWorkbookFromRemoteFile(url, function(workbook) {
readWorkbook(workbook);
});
}
function exportExcel() {
var csv = table2csv($('#result table')[0]);
var sheet = csv2sheet(csv);
var blob = sheet2blob(sheet);
openDownloadDialog(blob, '导出.xlsx');
}
function exportSpecialExcel() {
var aoa = [
['主要信息', null, null, '其它信息'], // 特别注意合并的地方后面预留2个null
['姓名', '性别', '年龄', '注册时间'],
['张三', '男', 18, new Date()],
['李四', '女', 22, new Date()]
];
var sheet = XLSX.utils.aoa_to_sheet(aoa);
sheet['!merges'] = [
// 设置A1-C1的单元格合并
{s: {r: 0, c: 0}, e: {r: 0, c: 2}}
];
openDownloadDialog(sheet2blob(sheet), '单元格合并示例.xlsx');
}
</script></body></html>123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256SheetJS js-xlsxSheetJS是用于多种电子表格格式的解析器和编写器。通过官方规范、相关文档以及测试文件实现简洁的JS方法。SheetJS强调解析和编写的稳健，其跨格式的特点和统一的JS规范兼容，并且ES3/ES5浏览器向后兼容IE6。 支持格式的图表 (点击查看)
目录表点击展示目录表 安装在浏览器里使用，增加一个script标签： <script lang="javascript" src="dist/xlsx.full.min.js"></script>1 使用CDN (点击显示详情)
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