前端导出xls

/*补货人员统计列表导出*/
export() {
  const startDateInput = new Date(this.startDateInput);
  const endDateInput = new Date(this.endDateInput);
  let startDate = '';
  let endDate = '';
  if (this.startDateInput !== null && this.startDateInput !== undefined) {
    startDate = startDateInput.getFullYear() + '-' + (startDateInput.getMonth() + 1) + '-' + startDateInput.getDate();
  }
  if (this.endDateInput !== null && this.endDateInput !== undefined) {
    endDate = endDateInput.getFullYear() + '-' + (endDateInput.getMonth() + 1) + '-' + endDateInput.getDate();
  }
  const params = {
    'startDate': startDate,
    'endDate': endDate,
    'companyId': this.selectCompany,
    'operator': this.procurementName,
    'isShowAll': 1
  };
  window.location.href = this.appProperties.getUrl() +
    '/ReplenishmentReport/exportUserAll?token=' + sessionStorage.getItem('token')
    + '&companyId=' + this.selectCompany
    + '&operator=' + this.procurementName
    + '&isShowAll=1&startDate=' + startDate
    + '&endDate=' + endDate;
  /*const url = this.appProperties.getUrl() + '/ReplenishmentReport/exportUserAll';
  this.appService.postDataDownLoad(url, params).subscribe(
    data => {
      const blob = new Blob([data], {type: 'application/vnd.ms-excel'});
      const fileName = '机器补货盘点统计.xls';
      this.downLoad(blob, fileName);
    },
    error => {
      console.log(error);
    }
  );*/
}
/*导出下载事件*/
downLoad(blob, fileName) {
  if (window.navigator.msSaveOrOpenBlob) {
    navigator.msSaveBlob(blob, fileName);
  } else {
    const link = document.createElement('a');
    const body = document.querySelector('body');
    link.href = window.URL.createObjectURL(blob);
    link.download = fileName;
    link.style.display = 'none';
    body.appendChild(link);
    link.click();
    body.removeChild(link);
    window.URL.revokeObjectURL(link.href);
  }
}