JS base64文件转化blob文件

项目需要将后台返回的base64转换成文件并在页面前端浏览、播放、下载等,同时防止base64过长POST提交丢失

  /**
   * base64文件转换为blob文件
   * @param str_base64
   * @param name_file
   * @returns {string}
   */
  function base64ToBlob(str_base64, name_file) {
    let arr = str_base64.split(','),
      mime = arr[0].match(/:(.*?);/)[1],
      bstr = atob(arr[1]),
      n = bstr.length,
      u8arr = new Uint8Array(n);

    while (n--) {
      u8arr[n] = bstr.charCodeAt(n);
    }

    let file_blob = new File([u8arr], name_file, {type: mime});

    file_blob.lastModifiedDate = new Date();
    file_blob.name = name_file;

    return URL.createObjectURL(file_blob);
  }

 

  //调用
  const str_base64 = 'data:audio/mp3;base64,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';
  let _url_blob_file = base64ToBlob(str_base64, 'test.mp3');
  console.log(_url_blob_file)

 

posted on 2020-12-24 15:36  你看我哪里像好人  阅读(1783)  评论(0编辑  收藏  举报

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