44 lines
1.5 KiB
JavaScript
44 lines
1.5 KiB
JavaScript
import * as XLSX from 'xlsx';
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/**
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* eg: .columns = [
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* { header: 'Id', key: 'id', wpx: 10 },
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* { header: 'Name', key: 'name', wch: 32 },
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* { header: 'D.O.B.', key: 'dob', width: 10, hidden: true }
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* ]
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* data: [{id: 1, name: 'John Doe', dob: new Date(1970,1,1)}]
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* @param columns 定义列属性数组
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* @param data 数据
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* @param name 文件名
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*/
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export const generateExcel = (columns = [], data = [], name = '') => {
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const headers = columns.map((item) => item.header);
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const otherConfigs = columns.map(({ key, header, ...item }) => item);
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const dataList = data.map((item) => {
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let obj = {};
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columns.forEach((col) => {
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obj[col.header] = item[col.key];
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});
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return obj;
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});
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const workbook = XLSX.utils.book_new();
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workbook.SheetNames.push(name);
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const worksheet = XLSX.utils.json_to_sheet(dataList, {
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header: headers,
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});
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worksheet['!cols'] = otherConfigs;
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workbook.Sheets[name] = worksheet;
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// 生成Blob数据
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const excelData = XLSX.write(workbook, { type: 'array', bookType: 'xlsx' });
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const blobData = new Blob([excelData], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
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// 创建Blob URL
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const blobUrl = URL.createObjectURL(blobData);
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// 创建一个隐藏的<a>标签并设置href属性为Blob URL
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const link = document.createElement('a');
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link.href = blobUrl;
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link.target = '_blank';
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link.download = `${name}.xlsx`;
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// 触发点击操作，开始下载文件
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link.click();
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// 释放Blob URL
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URL.revokeObjectURL(blobUrl);
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}; |