使用xlsx把json对象导出excel

1,首先使用npm下载xlsx.执行命令 npm install xlsx --save

import { Component, OnInit } from '@angular/core';
//import * as FileSaver from 'file-saver';
import * as XLSX from 'xlsx';

@Component({
  selector: 'app-export-as-excel',
  templateUrl: './export-as-excel.component.html',
  styleUrls: ['./export-as-excel.component.css']
})
export class ExportAsExcelComponent implements OnInit {
/* aa:any;
 bb:any;*/
/* persons:any=[{
   id:'1',
   name:'zheng',
   age:'23',
   surname:'zhengxiaoya'
 },
   {
     id:'2',
     name:'xue',
     age:'24',
     surname:'saria'
   }
 ];*/

/*  data = [
    ['1','a','aa'],
    ['2','b','bb'],
    ['3','c','cc']
  ]*/
  config: any=[
    {主页: "111", 名称: "6800", 数量: "6800", 昵称: "广告主网"},
    { 主页: "433", 名称: "6800", 数量: "6800", 昵称: "广告主网"},
    { 名称: "22", 商家: "6800", 数量: "6800", 昵称: "广告主网"},
    { 名称: "43", 商家: "6800", 数量: "6800", 昵称: "广告主网"},
    { 店家: "43", 价格: "6800", 数量: "6800", 昵称: "广告主网"}
  ]
  constructor() { }

  ngOnInit() {
   /* this.aa=document.getElementById("table1")
    var as=document.getElementById("table1");
    console.log("a", document.getElementById("table1"));*/
  };

  exportFile(){
   /* var date=new Date();
    var y = date.getFullYear();
    var m = date.getMonth() + 1;
    var d = date.getDate();
    var h = date.getHours();
    var mi = date.getMinutes();
    var s = date.getSeconds();
    var res = y.toString();
    if(m < 10) res += "0";
    res += m;
    if(d < 10) res += "0";
    res += d;
    if(h < 10) res += "0";
    res += h;
    if (mi < 10) res += "0";
    res += mi;
    if (s < 10) res += "0";
    res += s;
    console.log("date",date);
    console.log("format",res);*/


    /* generate worksheet */
 const ws: XLSX.WorkSheet = XLSX.utils.json_to_sheet(this.config);
 const ws2: XLSX.WorkSheet = XLSX.utils.json_to_sheet(this.config);
   //  const ws: XLSX.WorkSheet = XLSX.utils.table_to_sheet(this.aa);
    // const ws2: XLSX.WorkSheet = XLSX.utils.table_to_sheet(this.aa);

  /* generate workbook and add the worksheet */
  const wb: XLSX.WorkBook = XLSX.utils.book_new();
  XLSX.utils.book_append_sheet(wb, ws, 'Sheet1');
 // XLSX.utils.book_append_sheet(wb, ws2, 'Sheet2');
  console.log(wb)
  /*  if(!wb.Props) wb.Props = {};
    wb.Props.Title = "Insert Title Here"+res;*/
  /* save to file */
  XLSX.writeFile(wb, 'SheetJS.xlsx'); //直接定义死文件名
  //  XLSX.writeFile(wb, wb.Props.Title+'.xlsx');  // 通过变量设置文件名
}

/*  F_Open_dialog(){
   document.getElementById('btn_file').click();
    var objFile = document.getElementById("btn_file");
    console.log("dd",objFile);
  }*/
}