Java中Base64解码

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某个程序员闯关游戏的最后一关，有点费事，需要将一个二进制文件转换成ascii码，发现ascii码文件是Base64的加密文件，所以再用BASE64Decoder包(下载地址:https://pan.baidu.com/s/1slEQitf)进行Base64解码，得到的文件是一个压缩文件。

代码如下：

import Decoder.BASE64Decoder;public class d1111 { public static void main(String[] args) throws IOException {  game1111_9(); } public static void game1111_9() throws IOException { File file = new File("C:\\Users\\光\\Pictures\\11.txt"); BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file))); StringBuffer sb = new StringBuffer(); String line = null; while ((line = br.readLine()) != null) { String[] codes=line.split(" "); for(String code:codes){ char c=(char) Integer.parseInt(code, 2); sb.append(c); } } System.out.println(sb); BASE64Decoder decoder = new BASE64Decoder(); byte[] decodeBuffer = decoder.decodeBuffer(sb.toString()); File decodeFile = new File("C:\\Users\\光\\Pictures\\decode.tar.gz"); FileOutputStream fileOutputStream = new FileOutputStream(decodeFile); fileOutputStream.write(decodeBuffer); fileOutputStream.close(); br.close(); } }

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