爪哇 - Base64编码字符串和缩小文字 [英] Java - Base64 string in and out of a text

问题描述

我需要写的base64含带codeD文本到文本文件字符串，然后再读取该字符串从文本文件返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.

如何能做到这一点，以便有没有数据丢失是由于编码问题？

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

推荐答案

的Base64 是唯一的A-Z，A- Z，0-9，+和/。所以应该没有编码的问题。只要你能带code的Ascii正常。 Base64编码的发明重新present字节 7位字符的。

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.

要带code和德code可以使用的commons codeC的Base64 。

To encode and decode you can use commons codec Base64.

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