java中受密码保护的zip文件 [英] Password protected zip file in java
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问题描述
我使用java创建了zip文件,如下面的代码段
I have created zip file using java as below snippet
import java.io.*;
import java.util.zip.*;
public class ZipCreateExample {
public static void main(String[] args) throws IOException {
System.out.print("Please enter file name to zip : ");
BufferedReader input = new BufferedReader
(new InputStreamReader(System.in));
String filesToZip = input.readLine();
File f = new File(filesToZip);
if(!f.exists()) {
System.out.println("File not found.");
System.exit(0);
}
System.out.print("Please enter zip file name : ");
String zipFileName = input.readLine();
if (!zipFileName.endsWith(".zip"))
zipFileName = zipFileName + ".zip";
byte[] buffer = new byte[18024];
try {
ZipOutputStream out = new ZipOutputStream
(new FileOutputStream(zipFileName));
out.setLevel(Deflater.DEFAULT_COMPRESSION);
FileInputStream in = new FileInputStream(filesToZip);
out.putNextEntry(new ZipEntry(filesToZip));
int len;
while ((len = in.read(buffer)) > 0) {
out.write(buffer, 0, len);
}
out.closeEntry();
in.close();
out.close();
} catch (IllegalArgumentException iae) {
iae.printStackTrace();
System.exit(0);
} catch (FileNotFoundException fnfe) {
fnfe.printStackTrace();
System.exit(0);
} catch (IOException ioe) {
ioe.printStackTrace();
System.exit(0);
}
}
}
现在我想要点击在zip文件上它应该提示我输入密码然后解压缩zip文件。
请帮忙,我该怎么做?
Now I want when I click on the zip file it should prompt me to type password and then decompress the zip file. Please any help,How should I go further?
推荐答案
标准Java API不支持受密码保护的zip文件。幸运的是,好人已经为我们实现了这样的能力。请看一下这篇解释如何创建受密码保护的zip的文章: http://java.sys -con.com/node/1258827
Standard Java API does not support password protected zip files. Fortunately good guys have already implemented such ability for us. Please take a look on this article that explains how to create password protected zip: http://java.sys-con.com/node/1258827
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