【JAVA】对字符BASE64加密、解密并保存文件

 1.对字符base64加密

import sun.misc.base64Encoder;
import java.net.URLEncoder;

    @RequestMapping("encoder")
    public String encoder(String content) throws UnsupportedEncodingException {
        base64Encoder encoder = new base64Encoder();
        String file = encoder.encode(content.getBytes());
        String encode = URLEncoder.encode(file, "UTF-8");
        log.info("encode:{}", encode);
        return encode;
    }

 加密后的字符

2.对加密后的字符进行解码并保存成txt文件

import sun.misc.base64Decoder;
import java.net.URLDecoder;

 
    @RequestMapping("decoder")
    public void decoder(HttpServletRequest request) throws IOException {
        // 获取base64加密后的字符
        String encode = request.getParameter("encode");
        String decode = URLDecoder.decode(encode, "UTF-8");
        //解码base64
        base64Decoder decoder = new base64Decoder();
        byte[] bytes = decoder.decodeBuffer(decode);
        //保存为文件，base64Decoder.txt最终会出现在项目的根目录中
        OutputStream out = new FileOutputStream("base64Decoder.txt");
        out.write(bytes);
        out.flush();
        out.close();
    }

 保存后的文件