text 将数据导出为ex​​cel

Posted 2021-05-02

import { Injectable } from '@angular/core';
import * as _filesaver from 'file-saver';
import * as XLSX from 'xlsx';
import { HttpClient } from '@angular/common/http';

const EXCEL_TYPE = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=UTF-8';
const EXCEL_EXTENSION = '.xlsx';

@Injectable()
export class ExportExcelService {

  constructor(private Http: HttpClient) { }

  public exportAsExcelFile(json: any[], excelFileName: string): void {

    const worksheet: XLSX.WorkSheet = XLSX.utils.json_to_sheet(json);

    const workbook: XLSX.WorkBook = { Sheets: { 'data': worksheet }, SheetNames: ['data'] };

    const excelBuffer: any = XLSX.write(workbook, { bookType: 'xlsx', type: 'array' });

    this.saveAsExcelFile(excelBuffer, excelFileName);
  }

  public saveAsExcelFile(buffer: any, fileName: string): void {

    const data: Blob = new Blob([buffer], {
      type: EXCEL_TYPE
    });

    _filesaver.saveAs(data, fileName+EXCEL_EXTENSION);

  }

}