原生js 导出excel

 var timestamp = new Date().getTime();
      var xmlResquest = new XMLHttpRequest();
      xmlResquest.open('POST', _this.hnss + `/sheshui/yjjc/exportCompanyList?pageNum=${_this.page}&pageSize=${_this.pageSize}`);
      xmlResquest.setRequestHeader('Content-type', 'application/json');
      xmlResquest.responseType = 'blob';
      xmlResquest.onload = function (oEvent) {
        var content = xmlResquest.response;
        var elink = document.createElement('a');
        elink.download = '企业详情导出模板' + timestamp + '.xlsx';
        elink.style.display = 'none';
        var blob = new Blob([content]);
        elink.href = URL.createObjectURL(blob);
        document.body.appendChild(elink);
        elink.click();
        document.body.removeChild(elink);
      };
      xmlResquest.send();
```Ï