下载文件-get方式

import axios from "axios";

export const axiosDownload = async (url, params, fileName) => {
  let res = await axios.get(url, {
    responseType: 'blob',
    headers: { 'content-type': 'application/json; charset=utf-8' },
    params: params,
  });
  let blob = new Blob([res.data]);
  let downloadElement = document.createElement('a');
  let href = window.URL.createObjectURL(blob); //创建下载的链接
  downloadElement.href = href;
  downloadElement.download = fileName; //下载后文件名
  document.body.appendChild(downloadElement);
  downloadElement.click(); //点击下载
  document.body.removeChild(downloadElement); //下载完成移除元素
  window.URL.revokeObjectURL(href); //释放掉blob对象
};

export const axiosDownload = async (url, params, fileName) => {
  const hide = message.loading('正在加载中,请耐心等待', 3);
  let res = await axios.get(url + '?random=' + Math.random(), {
    responseType: 'blob',
    headers: {'content-type': 'application/json; charset=utf-8'},
    params: params,
  });
  let headers = res.headers;
  if (headers.suffix && headers.fileName) {
    fileName = decodeURI(headers.fileName, "utf-8") + headers.suffix;
  }
  console.log("headers", headers);
  //
  let blob = new Blob([res.data], {
    type: 'application/octet-stream',
    'Content-Disposition': 'attachment'
  });
  if (window.navigator && window.navigator.msSaveOrOpenBlob) {
    // 兼容ie浏览器
    window.navigator.msSaveOrOpenBlob(blob, fileName)
  } else {
    // 谷歌,火狐等浏览器
    let url = window.URL.createObjectURL(blob)
    let downloadElement = document.createElement('a')
    downloadElement.style.display = 'none'
    downloadElement.href = url
    downloadElement.download = fileName
    document.body.appendChild(downloadElement)
    downloadElement.click()
    document.body.removeChild(downloadElement)
    window.URL.revokeObjectURL(url)
  }
  hide();
  message.success("已加入下载队列")
};