Need code to read text file from a zip file

[sumanseshadri]

Hi,
I need java code to read a text file from a zip file. The zip file contains only 1 text file.And I need to print the contents of the text file in on the console.I need the output of the text file as a string

Any help is highly appreciated...

thanx
suman

 

[sedj]

Look at the java.util.zip package ...

 

[sumanseshadri]

Hi Sedj,
Thanx. I did look at the api.


I have the following code , but this prints only few lines of the text file.
Could you please check ..Here, ivwr is a zip file.

ZipInputStream zis = new ZipInputStream(new BufferedInputStream(new FileInputStream("D:\\BuildEngine\\bin\\Test.ivwr&quot));

for (; zis.available() > 0; )
{
ZipEntry nextEntry = zis.getNextEntry();
if (nextEntry == null)
{
break;
}
long compressedSize = nextEntry.getCompressedSize();
byte[] unzippedByteArray = new byte[(int)nextEntry.getSize()];
zis.read(unzippedByteArray, 0, (int)compressedSize);


CharArrayWriter writer = new CharArrayWriter();
for(int i1 = 0; i1 < unzippedByteArray.length; i1++)
{
writer.write(unzippedByteArray[i1]);
// System.out.println(&quot;SS:&quot;+unzippedByteArray[i1]);
}


//This prints only few lines ..dunno why..
System.out.println(&quot;AAAAAA:&quot;+ writer.toString());

}

 

[michaelkrauklis]

                    CharArrayWriter writer = new CharArrayWriter();
                    for(int i1 = 0; i1 < unzippedByteArray.length; i1++)
                    {
                        writer.write(unzippedByteArray[i1]);
                    //    System.out.println(&quot;SS:&quot;+unzippedByteArray[i1]);
                    }


//This prints only few lines ..dunno why..
                    System.out.println(&quot;AAAAAA:&quot;+ writer.toString());

this should be in a while loop testing to see if if there is more to read. that's why you only get the first few lines. that's all that comes through on the first buffer.

MYenigmaSELF:-9
myenigmaself@myenigmaself.gaiden.com

http://myenigmaself.gaiden.com

&quot;If debugging is the process of removing bugs, then programming must be the process of putting them in.&quot; --Dykstra

 

[michaelkrauklis]

better...

// Written by W.Buchanan, 2003
import java.io.*;
import java.util.zip.*;

public class unzip {
public static void main (String argv[]) {
try {
BufferedOutputStream destination = null;
FileInputStream finps = new FileInputStream(argv[0]);
ZipInputStream zipinp = new ZipInputStream(new BufferedInputStream(finps));
ZipEntry entry;
while((entry = zipinp.getNextEntry()) != null) {
System.out.println("UnZipping: " + entry);
int count;
byte databuff[] = new byte[2048];
// write the files 
FileOutputStream fos = new FileOutputStream(entry.getName());
destination = new BufferedOutputStream(fos, 2048);
while ((count = zipinp.read(databuff, 0, 2048)) != -1) {
destination.write(databuff, 0, count);
}
destination.flush();
destination.close();
}
zipinp.close();
} catch(Exception e) {
}
}
}

MYenigmaSELF:-9
myenigmaself@myenigmaself.gaiden.com

http://myenigmaself.gaiden.com

&quot;If debugging is the process of removing bugs, then programming must be the process of putting them in.&quot; --Dykstra