如何将文件通过base64字符加密以及解码保存到目标文件

àì夳堔傛蜴生んèń 2022-10-01 15:41 431阅读 0赞

[2019独角兽企业重金招聘Python工程师标准>>> ][2019_Python_] ![hot3.png][]

import sun.misc.BASE64Decoder;  
import sun.misc.BASE64Encoder;

import java.io.File;  
import java.io.FileInputStream;  
import java.io.FileOutputStream;

/\*\*  
\* Created by Administrator on 2017/10/28 0028.  
\*/  
public class FileUtil \{  
public static final String DEPATH = "D:/test/deFile/test.jsp";  
public static final String ENPATH = "D:/test/enFile/test.jsp";  
public static final String PATH = "D:/test/File/test.jsp";  
/\*\*  
\* 将文件转成base64字符串  
\* [@param][param] path 文件路径  
\* [@return][return] String  
\* [@throws][throws] Exception  
\* \*/  
public static String encodeBase64File(String path)throws Exception\{  
File file = new File(path);  
FileInputStream fileInputStream = new FileInputStream(file);  
byte\[\] buffer = new byte\[(int)file.length()\];  
//是否read读入的数据交给buffer  
fileInputStream.read(buffer);  
fileInputStream.close();  
return new BASE64Encoder().encode(buffer);  
\}  
/\*\*  
\* 将文件base64字符解码并保存到目标文件  
\* [@param][param] base64Code 字符串 targetPath 目标文件  
\* [@return][return] void  
\* @throws Exception  
\* \*/  
public static void decoderBase64File(String base64Code,String targetPath)throws Exception\{  
byte\[\] buffer = new BASE64Decoder().decodeBuffer(base64Code);  
FileOutputStream fileOutputStream = new FileOutputStream(targetPath);  
fileOutputStream.write(buffer);  
fileOutputStream.close();  
\}  
/\*\*  
\* 将文件base64字符保存文件  
\* @param base64Code 字符串 targetPath 目标文件  
\* @return void  
\* @throws Exception  
\* \*/  
public static void base64ToFile(String base64Code,String targetPath)throws Exception\{  
byte\[\] buffer = base64Code.getBytes();  
FileOutputStream fileOutputStream = new FileOutputStream(targetPath);  
fileOutputStream.write(buffer);  
fileOutputStream.close();  
\}  
public static void main(String\[\] agrs)\{  
try \{  
String base64Code = encodeBase64File(ENPATH);  
System.out.println(base64Code);  
decoderBase64File(base64Code,DEPATH);  
base64ToFile(base64Code,PATH);  
\}catch (Exception e)\{  
e.printStackTrace();  
\}  
\}  
\}  
注：仅供分享，内容参照其他学者

转载于:https://my.oschina.net/u/3378039/blog/1560044

[2019_Python_]: https://my.oschina.net/u/2663968/blog/3061697
[hot3.png]: /images/20220113/00b9e3fe69414dbbaf5ed2c8bc6589aa.png
[param]: https://my.oschina.net/u/2303379
[return]: https://my.oschina.net/u/556800
[throws]: https://my.oschina.net/throws