将base64数据中的二进制文件保存在Javascript中[重复]

Question

我正在尝试用JavaScript下载xlsx电子表格。我已经测试了base64数据。我是这样解码的：

save(name, data, type) {
  const blob = new Blob([data], {type: type});
  let objectURL = window.URL.createObjectURL(blob);
  let anchor = document.createElement('a');

  anchor.href = objectURL;
  anchor.download = name;
  anchor.click();

  URL.revokeObjectURL(objectURL);
}

null

Answer 1

下面是解决这个问题的代码：

export default {
 save(name, data, type, isBinary) {
  if (isBinary) {
    var bytes = new Array(data.length);
    for (var i = 0; i < data.length; i++) {
        bytes[i] = data.charCodeAt(i);
    }
    data = new Uint8Array(bytes);
  }

  var blob = new Blob([data], {type: type});
  let objectURL = window.URL.createObjectURL(blob);
  let anchor = document.createElement('a');

  anchor.href = objectURL;
  anchor.download = name;
  anchor.click();

  URL.revokeObjectURL(objectURL);
 }
}

感谢参与解决的每一个人。此外，还包括：用JavaScript从base64字符串创建Blob