umi-request下载数据流

/**
 * 获取数据流
 */
import React from 'react';
import { Button } from 'antd';
import 'antd/dist/antd.css';
import request from 'umi-request';

export default () => {
  function download() {
    request('/get-data-stream', {
      method: 'POST',
      // 必须加responseType: 'blob',
      responseType: 'blob',
    }).then(res => {
      const blob = new Blob([res]);   //注意拿到的是数据流！！
      const objectURL = URL.createObjectURL(blob);
      let btn = document.createElement('a');
      btn.download = '文件.docx'; //文件类型
      btn.href = objectURL;
      btn.click();
      URL.revokeObjectURL(objectURL);
      btn = null;
    });
  }
  return (
    <>
      <Button type="primary" onClick={download}>
        下载文件
      </Button>
    </>
  );
};

或者直接地址下载，这个一般是由后端返回的

window.open('https:123//123123.........')

request.interceptors.request.use(async (url, options) => {
  if (
    options.method === 'post' ||
    options.method === 'put' ||
    options.method === 'delete' ||
    options.method === 'get'
  ) {
    const headers = {
      'Content-Type': 'application/json',
      Accept: 'application/json',
      token:localStorage.getItem("token")
    };
    return {
      url,
      options: { ...options, headers },
    };
  }
});