javascript - Node JS，如何在 JSON 字符串中正确存储 Base64 字符串？

Question

我必须生成带有一些属性的 JSON，其中之一是 base64 字符串:

var file = fs.readFileSync('myfile');
var request = { password: '123456', key: file.toString('base64')};
console.log(JSON.stringify(request));

它向我输出那种 JSON:

{"password":"123456","key":"MIIIhQIBAzCCCD8GCSqGSIb3DQEHAaCCCDAEgggsMIAwgAYJKoZIhvcNA
  QcBoIAEggEOMIIBCjCCAQYGCyqGSIb3DQEMCgECoG4wbDAoBgoqhkiG9w0BDAEDMBoEFOWB9Rf4cT/NBObHUQW6sCOtB2AbAgIEAARAfTkFJwD66tZ2p30iXGLNtyH41D4RlWSof/MJ3w91rU22sQmCZkRR7UzgOlaoFWggWB2a2FHYOMpNjRbm+d
  9+hjGBhjAjBgkqhkiG9w0BCRUxFgQU5W/loImfeHgVra9dJW2noKcMLBMwXwYJKoZIhvcNAQkUMVIeUABlADUANgBmAGUANQBhADAAOAA5ADkAZgA3ADgANwA4ADEANQBhAGQAYQBmADUAZAAyADUANgBkAGEANwBhADAAYQA3ADAAYwAyAGMAMQA
  zAAAAADCABgkqhkiG9w0BBwaggDCAAgEAMIAGCSqGSIb3DQEHATAoBgoqhkiG9w0BDAEGMBoEFPOj+9YztiaevvtCfZthUx6+uv27AgIEAKCABIIGqHs+siCvaxABhn/GgVGEfZ/SYJN/wBszCjJDpyiv1dO1c3Ty3yPzxzqCwpvYvZcXLpzc6Xa6
  v90tmrml63zIOwPyDSKqZ0nSC8fL+jqMRXArUYlDoP+TK39OknfPEhhjLmJOqY2jboRvsDXaOggu0g7VOhx4vG6e/nj8LjFgEQEzoqF5wxg/RTx5yNvnK3oUPocbKUjSgJ1qj26vJUk3vXNTGjks9ltswRZA5up+b+3bzx5Cy/gCU/U96bw3u+8Ei
  p0NdtEsXzx5SmD70E85HPyPg7NAk7qrliy16MdJHKzN9gSDl6UDtLKNFPXvDPAjAkSPwKt1qp0SEn+aZ+BADIk2TYZDTRFxGD6ym9+mwBzSsBoJ5kojmyF3F2CJCQzjyEs2moCCV32sgHJ59k3C1DOGD4b2TNxRKm4U0hjpdXqjv2orPDpkvniejJ
"}

我刚刚跳过了这个问题中 base64 字符串的最后部分。

它为我生成了 JSON 字符串，但它是无效的，因为 base64 字符串的结构中有一些双反斜杠。

如何正确生成带有base64属性的JSON字符串？

我生成的 base64 看起来像这样:

MIIIhQIBAzCCCD8GCSqGSIb3DQEHAaCCCDAEgggsMIAwgAYJKoZIhvcNA
QcBoIAEggEOMIIBCjCCAQYGCyqGSIb3DQEMCgECoG4wbDAoBgoqhkiG9w0BDAEDMBoEFOWB9Rf4cT/NBObHUQW6sCOtB2AbAgIEAARAfTkFJwD66tZ2p30iXGLNtyH41D4RlWSof/MJ3w91rU22sQmCZkRR7UzgOlaoFWggWB2a2FHYOMpNjRbm+d
9+hjGBhjAjBgkqhkiG9w0BCRUxFgQU5W/loImfeHgVra9dJW2noKcMLBMwXwYJKoZIhvcNAQkUMVIeUABlADUANgBmAGUANQBhADAAOAA5ADkAZgA3ADgANwA4ADEANQBhAGQAYQBmADUAZAAyADUANgBkAGEANwBhADAAYQA3ADAAYwAyAGMAMQA
zAAAAADCABgkqhkiG9w0BBwaggDCAAgEAMIAGCSqGSIb3DQEHATAoBgoqhkiG9w0BDAEGMBoEFPOj+9YztiaevvtCfZthUx6+uv27AgIEAKCABIIGqHs+siCvaxABhn/GgVGEfZ/SYJN/wBszCjJDpyiv1dO1c3Ty3yPzxzqCwpvYvZcXLpzc6Xa6
v90tmrml63zIOwPyDSKqZ0nSC8fL+jqMRXArUYlDoP+TK39OknfPEhhjLmJOqY2jboRvsDXaOggu0g7VOhx4vG6e/nj8LjFgEQEzoqF5wxg/RTx5yNvnK3oUPocbKUjSgJ1qj26vJUk3vXNTGjks9ltswRZA5up+b+3bzx5Cy/gCU/U96bw3u+8Ei
p0NdtEsXzx5SmD70E85HPyPg7NAk7qrliy16MdJHKzN9gSDl6UDtLKNFPXvDPAjAkSPwKt1qp0SEn+aZ+BADIk2TYZDTRFxGD6ym9+mwBzSsBoJ5kojmyF3F2CJCQzjyEs2moCCV32sgHJ59k3C1DOGD4b2TNxRKm4U0hjpdXqjv2orPDpkvniejJ
0T7JwYXvQ7MG1+OpjJnk4/B++NuVZbkaPEEjTtN3UbXYlhNPEOmPjqBA4m83BwWv5OwBdsiMynqEkMWKo3QQZ3xxfM0ldMr5q+Nq92EHBgq8lymPTHZphURR14HZnwsnzmWTbSIaAzwB/Ywne1Q4ZjPQEsIfrvfkoL7ntzrnsqpbMxEYCUDDuXXc+
MGkhmcVhguSX5ZzSy1dRVdgqYN4yk34pSYneJ3WPZ1CCT7YTmVt2KZrOKBLPwQM1YVTfyOG/WtwyUhCzaRUajxYNXmNKDvKiP5kO0APxOIFP7GcdnRTjY7PaqBCBWRk1cSr9UbXJEpBTdZUKBkZPvInaIPET9bkmpLxKFaegHvsxyKIT10tvh5afX
ZPkIn+qbHpSxnphjdf+IviIKaq7j2Aw94lU3WZfX+DQF04vdpyC+iQbdI0fsZiiVmmLnIVryDbRKeFsx4sE8M+qJ5ILLrMLrG4TQvA6N+6lH0RekmsVdfvQHLwezNv8Mo4Oxaa4nqIJ/fHMDvF8Ppre2mrgblKrYR20RfQKrFzX0uxUj/UZblwiTS
WjS/YlLqCYz+CWjvvFcwQLZNaly42EqrIt1XcLGncM5WytRH/+XrO4ckib/ksDtkO31ZvvzsxWm/xGceQSOhUzpV7p98lN4DXI8lyyY/ijzmhcRH9fc6j//ifWJn8RUI/J+wXRUuBvG0qYVF/0Cg7WNIHkbo6+pKvhKThwiGycCsRI/+oMvopamBg
fHZ9nvY0/IgPK4X5WipZB+xqrKI7OlbHWxjO/kvnTPIWIxVE7WJ5ddEh7+c6snzzaPQT1eGOIckMqSSd52bAMskqnjlDmnjtwJG8Hx8VxaEcSgXnfD9Ro81CGNbWRGVseaLal5jzJbpQxQ5QGLTTfwVJ0QX3iXGZ6YTRHeFHYf4j6W2owMJt4+BPN
dYWh8qINQD04cOq68+zaGyQ5kAsCFIAIbAdUk/pIgLQFQ9/FDmceD+b82hxCYG6O2cx9ppCxbxChbiQmxUi0jW8dUakWrXkEjcz/Aytvon/STMuzkh6SLGVW0hr4NbA0rPFwAl/d9Fi/NsVOlqq4D3FZ4q76rgRGQkEcmMESSF051DdDFO+cYAaA2
MwkIr7dKccvdXyLbKkL/0u23lgWECRXg4c4EfqZMticDtP7letIc7yeNgAEglbLvvRqPoRtAiCZg7yzGUGnjT9qZRnujmZrGKDKXDYry8oBqRKUJEOikHmGmEEw9Hs9hyFos7AzBP6t/93PI/kUaPdRhZe9Fwi9AwnrIfB8jxAfNPEy2nLVZ6WEQm
tHJD8LAGVsiUtlQA30C/YAoX284RlsfHTG9Cw2S0u3lSYNJNYU/zIa//Zu3O3bp+XwHUec7al9QcofiRToZwC/YA9mZEGDOqjP8gh4Q0WFONTRTSD6LIZem8x8Y+fEWcPDu4ZzkExZy8zC9KYletJglM/ZDcbQd8vhiytpTODuFYSXJIsLmk5wYkT
0Gdb3QiRD6tdZ+GOcHT0oaSHEkWGLa7hfSIdaS5j4G+VAPy+29CLCphX9ZdRyuae4C2dVjoHcu2sFhhCQh7V64mYpwp2AgIlrx5T5+GKmjnsi8MhXnMUY8C/tAYY0JQwsEsArE04FOqJerWvhM/cB7CvdQN6NyG0XiV4mT6LDn1Vz1u8nuXB+xKvT
nVNl7MfJtxLuEe6IC0jttX2QwbtlSHTYKHA1+4lKe9SKbtWV1VIhgA+P/xXrk8h4E10RyRi3eSdgtMaM1RAYaUADQmA1Dh5OlTtPc1JOGnMHsaBRDKYggiMBENJp6JyoU9RgS6tkhFZP0BZkCLf7t0janQSOP5gTDT2wAhgAAAAAAAAAAAAAAADA9
MCEwCQYFKw4DAhoFAAQUwl/G8qYgHK0C2n1jqLTQjEjqkvkEFLPjN/qfoSjcIzyT35GhE0SgivRyAgIEAA==

这里是验证器所说的:

Answer 1

你的做法很好，Base64字符串中不能有反斜杠，其余的都会转义。

Base64 index Table :

0   A   16  Q   32  g   48  w
1   B   17  R   33  h   49  x
2   C   18  S   34  i   50  y
3   D   19  T   35  j   51  z
4   E   20  U   36  k   52  0
5   F   21  V   37  l   53  1
6   G   22  W   38  m   54  2
7   H   23  X   39  n   55  3
8   I   24  Y   40  o   56  4
9   J   25  Z   41  p   57  5
10  K   26  a   42  q   58  6
11  L   27  b   43  r   59  7
12  M   28  c   44  s   60  8
13  N   29  d   45  t   61  9
14  O   30  e   46  u   62  +
15  P   31  f   47  v   63  /

对于给定的字符串，它完美地工作:

a={"password":"123456",key:"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"}

看看你的屏幕截图，看起来你的字符串中有一个换行符，是这样吗？我在这里不知所措:http://prnt.sc/ddyq6y