vue开发如何把二进制流转换为base64

二进制流转换为base64格式方法

getBase64(data) {
  const blob = new Blob([data], { type: "image/jpg" }); //类型一定要写！！！
  return new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.readAsDataURL(blob);
    reader.onload = () => resolve(reader.result);
    reader.onerror = (error) => reject(error);
  });
},

调用方法：

const url = "图片地址";
axios
  .get(url, {
    responseType: "blob", //格式类型！
  })
  .then((res) => {
    console.log('输出二进制流', res.data);
    this.getBase64(res.data).then((binary) => {
      console.log('', "base64");
    });
  });