How to export an Excel table in Angular?

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Now the front-end can perform simple import and export operations of excel files.

The following is an example of using a plug-in to export a table into an excel file

The component is based on XlsxService encapsulated by ng-alain, and XlsService is developed based on sheetjs.

Related resources not attached

Sample code

import { Component } from '@angular/core';
import { STColumn, XlsxService } from '@delon/abc';

@Component({
  selector: 'components-xlsx-export',
  template: `
    <button>Export</button>
    <!-- 为了方便使用了ng-alain表格组件，也可以用ng-zorro或者其他库实现的表格。展现是次要的，重点是数据 -->
    <st></st>
    `,
})
export class ComponentsXlsxExportComponent {
  constructor(private xlsx: XlsxService) {}

  // 表格数据-模拟数据
  users: any[] = Array(100)
    .fill({})
    .map((_item: any, idx: number) => {
      return {
        id: idx + 1,
        name: `name ${idx + 1}`,
        age: Math.ceil(Math.random() * 10) + 20,
      };
    });
  columns: STColumn[] = [
    { title: '编号', index: 'id', type: 'checkbox' },
    { title: '姓名', index: 'name' },
    { title: '年龄', index: 'age' },
  ];

  download() {
      // 组装要导出的数据
    const data = [this.columns.map(i => i.title)];
    this.users.forEach(i =>
      data.push(this.columns.map(c => i[c.index as string])),
    );
    // 使用组件XlsxService导出数据为xls文件
    this.xlsx.export({
      filename: '自定义命名列表.xlsx',
      sheets: [
        {
          data: data,
          name: 'sheet name',
        },
      ],
    });
  }
}

Related resources:
ng-alain XlsxService https://ng-alain.com/components/xlsx/zh
sheetjs https://sheetjs.com/

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