43 lines
1.6 KiB
JavaScript
43 lines
1.6 KiB
JavaScript
// 将一个sheet转成最终的excel文件的blob对象，然后利用URL.createObjectURL下载
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function sheet2blob(sheet, sheetName) {
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sheetName = sheetName || 'sheet1';
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var workbook = {
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SheetNames: [sheetName],
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Sheets: {}
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};
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workbook.Sheets[sheetName] = sheet; // 生成excel的配置项
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var wopts = {
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bookType: 'xlsx', // 要生成的文件类型
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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
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type: 'binary'
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};
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var wbout = XLSX.write(workbook, wopts);
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var blob = new Blob([s2ab(wbout)], {
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type: "application/octet-stream"
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}); // 字符串转ArrayBuffer
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function s2ab(s) {
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var buf = new ArrayBuffer(s.length);
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var view = new Uint8Array(buf);
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for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
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return buf;
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}
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return blob;
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}
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function openDownloadDialog(url, saveName) {
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if (typeof url == 'object' && url instanceof Blob) {
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url = URL.createObjectURL(url); // 创建blob地址
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}
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var aLink = document.createElement('a');
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aLink.href = url;
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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
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var event;
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if (window.MouseEvent) event = new MouseEvent('click');
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else {
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event = document.createEvent('MouseEvents');
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event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
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}
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aLink.dispatchEvent(event);
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}
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