Java - Base64字符串输入和输出文本 [英] Java - Base64 string in and out of a text

问题描述

我需要将一个包含base64编码文本的字符串写入一个文本文件，然后再将这个字符串从文本文件中读回到一个字符串变量。

I need to write string containing base64 encoded text to a text file and then later read that string back from the text file to a string variable.

这样做是因为编码问题没有数据丢失？

How can i do it so that there is no data loss due to encoding issues?

推荐答案

Base64 只是A-Z，a-z，0-9，+和/。所以应该没有编码问题。只要你能够正确编码Ascii。 Base64被发明以表示 7位字符中的字节。

Base64 is only A–Z, a–z, 0–9, + and /. So there should be no encoding problem. As long as you're able to encode Ascii properly. Base64 was invented to represent bytes in 7-bit characters.

要编码和解码，您可以使用 commons编解码器Base64 。

To encode and decode you can use commons codec Base64.

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