Question

我使用单独的excel服务并在ts文件中定义了函数，在我的前端角度中添加了export to excel选项。这工作正常，但在Excel工作表中，我将为_id和__V字段获得2个附加列。我无法删除这两个字段。我给了下面的代码。任何人都可以在这方面提供帮助

excel service.ts

import { Injectable } from '@angular/core';
import * as FileSaver from 'file-saver';
import * as XLSX from 'xlsx';
import * as moment from 'moment'

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



@Injectable({
  providedIn: 'root'
})
export class ExcelService {

  constructor() { }

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

    const worksheet: XLSX.WorkSheet = XLSX.utils.json_to_sheet(json);
    console.log('worksheet', worksheet);
    const workbook: XLSX.WorkBook = { Sheets: { 'data': worksheet }, SheetNames: ['data'] };
    const excelBuffer: any = XLSX.write(workbook, { bookType: 'xlsx', type: 'array' });
    //const excelBuffer: any = XLSX.write(workbook, { bookType: 'xlsx', type: 'buffer' });
    this.saveAsExcelFile(excelBuffer, excelFileName);    
  }

  private saveAsExcelFile(buffer: any, fileName: string): void {
    const data: Blob = new Blob([buffer], {
      type: EXCEL_TYPE
    });
    FileSaver.saveAs(data, fileName + '_db_' + moment().format('MM-DD-YY_h.mm a') + EXCEL_EXTENSION);
  }
}

html

<button (click)="exportAsXLSX()" class="btn btn-success">Export to Excel</button>

ts文件

exportAsXLSX():void {
    this.excelService.exportAsExcelFile(this.VILKerala.data,'VILKerala');

  }}
  export interface VILKerala {}

如何从导出的Excel文件中删除_id和__v字段

0 个答案: