Blob 文件下载

下载方法，可以定义在js文件里面

// 下载文件
export function downloadFile(obj, name, suffix, str) {
  const url = window.URL.createObjectURL(new Blob([obj]))
  const link = document.createElement('a')
  link.style.display = 'none'
  link.href = url
  let fileName = null
  if (str === '导入') {
    fileName = '导入_' + name + '_' + parseTime(new Date()) + '.' + suffix
  } else {
    fileName = '导出_' + name + '_' + parseTime(new Date()) + '.' + suffix
  }
  link.setAttribute('download', fileName)
  document.body.appendChild(link)
  link.click()
  document.body.removeChild(link)
 this.$message({
   showClose: true,
   message: "文件下载成功",
   type: "success",
 });
}

导入和调用方式

  import {
    formatTime, downloadFile
  } from "@/utils/index";

  // 用户导入下载
  ImportUserTemplate()
    .then((res) => {
      console.log(res);
      // this.download(res);

      downloadFile(res, '客户列表', 'xlsx', '导入')
      this.downloadLoading = false;
    })
    .catch(() => {
      this.downloadLoading = false;
    });