为什么我的加密字符串看起来只包含问号? [英] Why does my encrypted string looks like consisting of only question marks?

问题描述

我正在用 Java 加密一个字符串，当我打印加密数据时，我只看到问号.

I'm encrypting a string in Java, and when I'm printing the encrypted data, I see only question marks.

举个例子:

• 纯文本:jjkkjlkljkj

加密文本:?????????????

再次解密这段文字后，我又得到了jjkkjlkljkj.

After decrypting this text again, I'm getting jjkkjlkljkj again.

所以看起来加密工作正常.但是为什么我只能看到问号?

So it looks like the encryption worked right. But why can I see only question marks?

推荐答案

是的，这是因为您无法打印由加密产生的字符串.

Yes, it's because you can't print the strings that are resulting from the encryption.

请注意，将加密结果保存在字符串中可能会导致数据丢失，所以不要这样做.将其作为字节数组，并将其转换为可显示格式，例如 Base64 或简单的十六进制.

Note that saving the encrypted result in a string will possibly result in loss of the data, so don't do that. Take it as a byte array, and convert it to a displayable format, like Base64 or just simple Hex.

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