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一個用java.util.zip創建和讀取zip文件的類,可以操作目錄

來源:互聯網網民  2008-05-31 12:10:25  評論

寫了一個用Java.util.zip創建和讀取zip文件的類

跟大家分享一下

裏面用了遞歸調用

呵呵

近期用了不少遞歸調用!有空總結一下!

/**

TestZip.java

coding by Serol Luo.

rollingpig@163.com

2003/07/03

http://www.chinaunix.net/forum/viewforum.PHP?f=26

轉載請保留此信息

*/

import java.util.*;

import java.util.zip.*;

import java.io.*;

class TestZip

{

public void zip(String zipFileName,String inputFile)throws Exception{

zip(zipFileName,new File(inputFile));

}

public void zip(String zipFileName,File inputFile)throws Exception{

ZipOutputStream out=new ZipOutputStream(new FileOutputStream(zipFileName));

zip(out,inputFile,"");

System.out.println("zip done");

out.close();

}

public void unzip(String zipFileName,String outputDirectory)throws Exception{

ZipInputStream in=new ZipInputStream(new FileInputStream(zipFileName));

ZipEntry z;

while ((z=in.getNextEntry() )!= null)

{

System.out.println("unziping "+z.getName());

if (z.isDirectory())

{

String name=z.getName();

name=name.substring(0,name.length()-1);

File f=new File(outputDirectory+File.separator+name);

f.mkdir();

System.out.println("mkdir "+outputDirectory+File.separator+name);

}

else{

File f=new File(outputDirectory+File.separator+z.getName());

f.createNewFile();

FileOutputStream out=new FileOutputStream(f);

int b;

while ((b=in.read()) != -1)

out.write(b);

out.close();

}

}

in.close();

}

public void zip(ZipOutputStream out,File f,String base)throws Exception{

System.out.println("Zipping "+f.getName());

if (f.isDirectory())

{

File[] fl=f.listFiles();

out.putNextEntry(new ZipEntry(base+"/"));

base=base.length()==0?"":base+"/";

for (int i=0;i<fl.length ;i++ )

{

zip(out,fl[i],base+fl[i].getName());

}

}

else

{

out.putNextEntry(new ZipEntry(base));

FileInputStream in=new FileInputStream(f);

int b;

while ((b=in.read()) != -1)

out.write(b);

in.close();

}

}

public static void main(String[] args)

{

try{

TestZip t=new TestZip();

t.zip("c:\test.zip","c:\test");

t.unzip("c:\test.zip","c:\test2");

}

catch(Exception e){e.printStackTrace(System.out);}

}

}

 
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  寫了一個用Java.util.zip創建和讀取zip文件的類 跟大家分享一下 裏面用了遞歸調用 呵呵 近期用了不少遞歸調用!有空總結一下! /** TestZip.java coding by Serol Luo. rollingpig@163.com 2003/07/03 http://www.chinaunix.net/forum/viewforum.PHP?f=26 轉載請保留此信息 */ import java.util.*; import java.util.zip.*; import java.io.*; class TestZip { public void zip(String zipFileName,String inputFile)throws Exception{ zip(zipFileName,new File(inputFile)); } public void zip(String zipFileName,File inputFile)throws Exception{ ZipOutputStream out=new ZipOutputStream(new FileOutputStream(zipFileName)); zip(out,inputFile,""); System.out.println("zip done"); out.close(); } public void unzip(String zipFileName,String outputDirectory)throws Exception{ ZipInputStream in=new ZipInputStream(new FileInputStream(zipFileName)); ZipEntry z; while ((z=in.getNextEntry() )!= null) { System.out.println("unziping "+z.getName()); if (z.isDirectory()) { String name=z.getName(); name=name.substring(0,name.length()-1); File f=new File(outputDirectory+File.separator+name); f.mkdir(); System.out.println("mkdir "+outputDirectory+File.separator+name); } else{ File f=new File(outputDirectory+File.separator+z.getName()); f.createNewFile(); FileOutputStream out=new FileOutputStream(f); int b; while ((b=in.read()) != -1) out.write(b); out.close(); } } in.close(); } public void zip(ZipOutputStream out,File f,String base)throws Exception{ System.out.println("Zipping "+f.getName()); if (f.isDirectory()) { File[] fl=f.listFiles(); out.putNextEntry(new ZipEntry(base+"/")); base=base.length()==0?"":base+"/"; for (int i=0;i<fl.length ;i++ ) { zip(out,fl[i],base+fl[i].getName()); } } else { out.putNextEntry(new ZipEntry(base)); FileInputStream in=new FileInputStream(f); int b; while ((b=in.read()) != -1) out.write(b); in.close(); } } public static void main(String[] args) { try{ TestZip t=new TestZip(); t.zip("c:\test.zip","c:\test"); t.unzip("c:\test.zip","c:\test2"); } catch(Exception e){e.printStackTrace(System.out);} } }
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