Question

我有以下代码，它应该将JSON对象编码为XLSX，然后下载它：

this.data = {
   foo: "xyz"
}
let json2xls = require('json2xls');
var data = json2xls(this.data);

let blob = new Blob([data], { type: "binary" });
let a = angular.element("a");
a.attr("href", this.$window.URL.createObjectURL(blob));
a.attr("download", "myfile.xlsx");
a[0].click();

它确实创建并下载了一个文件，但是excel无法打开它。我确信下面的转换方法有效，因为我可以将this.data发送到服务器，使用fs.writeFile()保存，然后下载此文件。

var data = json2xls(this.data);

如何从JSON解析为XLS，然后将其作为XLS保存在浏览器中？

Answer 1

这可以在服务器端完成：

安装exceljs

meteor npm install -s exceljs

然后您可以这样生成文件：

import Excel from 'exceljs';

WebApp.connectHandlers.use('/your-download-url', function(req, res, next) {
  // Use params to specify parameters for the xls generation process...
  const params = req.url.split('/');
  // ... for example /your-download-url/your-user-id
  // params[0] will be 'your-download-url'
  const user = Meteor.users.findOne(params[1]);

  const workbook = new Excel.stream.xlsx.WorkbookWriter({});
  workbook.created = new Date();
  workbook.modified = new Date();
  const sheet = workbook.addWorksheet('Your sheet name');

  res.writeHead(200, {
    'Content-Disposition': `attachment;filename=${filename}`,
    'Content-Type': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
  });
  workbook.stream.pipe(res);

  const headers: [
        { header: 'Column 1', key: 'col1', width: 20 },
        { header: 'Column 2', key: 'col2', width: 15 },
  ];
  sheet.columns = headers;

  // User sheet.addRow(rowData) to add each row in your sheet.

  workbook.commit();
});

从JSON创建和下载.xls文件

1 个答案: