一个用java.util.zip创建和读取zip文件的类,可以操作目录

王朝java/jsp·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

写了一个用Java.util.zip创建和读取zip文件的类

跟大家分享一下

里面用了递归调用

呵呵

近期用了不少递归调用!有空总结一下!

/**

TestZip.java

coding by Serol Luo.

rollingpig@163.com

2003/07/03

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

转载请保留此信息

*/

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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