SOURCE

axios({
  method: 'get',
  url: '/example.pdf',
  responseType: 'stream'
})
.then(response => {

  response.data.on('data', (chunk) => {
    // 处理流数据的逻辑
  });

  response.data.on('end', () => {
    // 数据接收完成的逻辑
  });

});