vue+axios将后端返回的图片流显示到img中

axios.get("接口地址", {
  responseType: "arraybuffer",
  params: 传给后端的数据
})
  .then(response => {
  return (
    "data:image/png;base64," +
    btoa(
      new Uint8Array(response.data).reduce(
        (data, byte) => data + String.fromCharCode(byte),
        ""
      )
    )
  )
})
  .then(data => {
  this.imgUrl = data; //赋值给img标签的src属性
})