vue中下载文件后无法打开的坑及解决

    //导出按钮放开
    exportDutySummarizing (dataRangeInfo) {
      const params = {
        departmentName: dataRangeInfo.name,
        departmentQode: dataRangeInfo.qode
      }
        //拼接所需得url
      const baseUrl = Constants.SERVICES.duty + Constants.DUTY_SUMMARIZING_EXPORT
      this.$axios({
        method: 'POST',
        url: utils.strFormat(baseUrl, {
          departmentName: params.departmentName,
          departmentQode: params.departmentQode
        }),
        headers: {
          Authorization: 'bearer ' + Cookies.get('Access-Token'),//token
          'Content-Type': 'application/json'
        },
        responseType: 'blob',//类型 这个必须要
        data: {//参数
          a: '1'
        }
      })
        .then((response) => {
            //公共的下载方法 在下面展示
          utils.download(response, dataRangeInfo.name + '名字.xlsx')
        })
        .catch(() => { })
    }
    //公共的下载方法
    util.download = function (data, filename) {
      if (!data && !filename) {
        return
      }
      let url = window.URL.createObjectURL(new Blob([data]))
      let link = document.createElement('a')
      link.style.display = 'none'
      link.href = url
      link.setAttribute('download', filename)
      document.body.appendChild(link)
      link.click()
    }