Using Java To Unzip

I have a zip file with a nested directory structure, with most folders containing files as well as other directories. I want to do use java's zip utilities to unzip the file.
Here's the twist: For each file (but not each directory) I want to read the file, write some extra text to the end of it, and then write it out into its appropriate place in the directory tree.
I know I get can use entries() to get an enumeration of entries in the zip file, and then I could use recursion to spider down into directories. But I thought maybe there was a simpler way, so that I didn't have to write the spidering code myself. Seems like this would be a common problem...
Thanks for any ideas/code,
John

I know I get can use entries() to get an enumeration
of entries in the zip file, and then I could use
recursion to spider down into directories. But IUhm, Zips are flat, aren't they? No need for recursion... all entries are at top level.

Similar Messages

Want To create Zip file using java,And Unzip without Java Program

I want to create a zip text file using java, I know Using ZipOutputStream , we can create a zip file, , But i want to open that zip file without java program. suppose i use ZipOutputStream , then zip file is created But for unZip also difftrent program require. We cant open that zip file without writing diff java program.
Actually i have one text file of big size want to create zip file using java , and unzip simply without java program.Its Possible??
Here is one answer But I want to open that file normal way(
For Exp. using winzip we can create a zip file and also open simply)
http://forum.java.sun.com/thread.jspa?threadID=5182691&tstart=0

Thanks for your Reply,
I m creating a zip file using this program, Zip file Created successfully But when im trying to open .zip file i m getting error like "Canot open a zip file, it does not appear to be valid Archive"
import java.io.*;
import java.util.zip.*;
public class ZipFileCreation
     public static void main (String argv[])
     try {
     FileOutputStream fos = new FileOutputStream ( "c:/a.zip" );
     ZipOutputStream zip = new ZipOutputStream ( fos );
     zip.setLevel( 9 );
     zip.setMethod( ZipOutputStream.DEFLATED );
//     get the element file we are going to add, using slashes in name.
     String elementName = "c:/kalpesh/GetSigRoleInfo092702828.txt";
     File elementFile = new File ( elementName );
//     create the entry
     ZipEntry entry = new ZipEntry( elementName );
     entry.setTime( elementFile.lastModified() );
//     read contents of file we are going to put in the zip
     int fileLength = (int)elementFile.length();
     System.out.println("fileLength = " +fileLength);
     FileInputStream fis = new FileInputStream ( elementFile );
     byte[] wholeFile = new byte [fileLength];
     int bytesRead = fis.read( wholeFile , 0 /* offset */ , fileLength );
//     checking bytesRead not shown.
     fis.close();
//     no need to setCRC, or setSize as they are computed automatically.
     zip.putNextEntry( entry );
//     write the contents into the zip element
     zip.write( wholeFile , 0, fileLength );
     zip.closeEntry(); System.out.println("Completed");
//     close the entire zip
     catch(Exception e) {
e.printStackTrace();
}

Using Java Embedding Unzip Code and a Trigger File in a BPEL Process

Hello,
Thanks in advance to anyone that contributes with any insight. It is much appreciated. Having said that I will get to the crux of my problem.
I am currently using Oracle 11g. I have created a SOA composite application that incorporates BPEL and Java. I have the code needed to unzip and extract compressed folders. However, when this was first built out using BPEL it automatically created a web service in the "exposed service" lane and not a file adapter which I believe is needed in order to trigger the process via a start.txt file for example. Based on what I know ... this web service automatically connecting to the BPEL process was simply due to the order of operations, etc. So by creating a 'read' file adapter first and then creating the BPEL process and selecting the template "Define Service Later", it does not automatcially connect the web service to the BPEL process and it will allow me to connect a file adapter to this BPEL process instead ... great. When opening up the BPEL file I then connect a recieve component to this file adapter and configure appropriately.
Essentially, my objective in setting up a trigger to start this unzip process is due to the BPEL process before that outputs or writes the .zip folder to the same directory that I want to poll and/or trigger via a start.txt file. I can get this process to work with a webservice connecting to the BPEL process and by using a Java Embedded in BPEL file, which in turns calls the package/ class that has the java code needed to unzip.
For some reason whenever I try to use a file adapter instead of the native web service that gets created (as mentioned above) it doesn't work. It seems to build or compile just fine however, I am getting errors when I try to deploy.
Note: The Java code contains all the paths where the zip file is to be taken from and extracted to. So because this is in the code I don't need the file adapter to handle this. I just want to use the file adapter so that I can trigger the process via start.txt or something of that nature.
Thanks to anyone that has any suggestions.
Kind Regards,
Kevin
Errors when attempting to deploy are as follows:
[04:12:54 PM] Error deploying archive sca_Job2_UnZip_rev1.0.jar to partition "default" on server soa_server1 [http://WN017A.homedepot.com:8001]
[04:12:54 PM] HTTP error code returned [500]
[04:12:54 PM] Error message from server:
There was an error deploying the composite on soa_server1: Deployment Failed: Error occurred during deployment of component: BPELProcess1 to service engine: implementation.bpel, for composite: Job2_UnZip: ORABPEL-05250
Error deploying BPEL suitcase.
error while attempting to deploy the BPEL component file "H:\Oracle\Middleware\user_projects\domains\Dev_Acorde\servers\soa_server1\dc\soa_d78eb301-314c-422a-a748-bcfe7d0906e8"; the exception reported is: java.lang.RuntimeException: failed to compile execlets of BPELProcess1
This error contained an exception thrown by the underlying deployment module.
Verify the exception trace in the log (with logging level set to debug mode).
[04:12:54 PM] Check server log for more details.
[04:12:54 PM] Error deploying archive sca_Job2_UnZip_rev1.0.jar to partition "default" on server soa_server1 [http://WN017A.homedepot.com:8001]
[04:12:54 PM] #### Deployment incomplete. ####
[04:12:54 PM] Error deploying archive file:/C:/JDeveloper/mywork/Job2_UnZip/Job2_UnZip/deploy/sca_Job2_UnZip_rev1.0.jar
(oracle.tip.tools.ide.fabric.deploy.common.SOARemoteDeployer)

Just wanted to provide a screenshot of the BPEL file as supporting documentation to better illustrate my issue.
Thanks so much,
Kevin

How do I estimate time takes to Zip/Unzip using java.util.zip ?

If I am compressing files or uncompressing zips using java.util.zip is there a way for me to tell the user how long it should take or for perhaps displaying a progress monitor ?

For unzip use the ZipInputStream and pass it a CountingInputStream that keeps track ofr the number of bytes read from it (you write this). This CountingInputStream extends fileInputStream and as such can provide you with information about the total number of bytes available to be read and the number already read. This can give a crude idea of how much work has been done and how much work still needs to be done. It is inaccurate but should be good enoough for a progress bar
As for zipping use the ZipOutputStream and pass it blocks of information. Keep track of the number of blocks you have written and the number you still need to write.
matfud

Cannot use winzip to unzip the zip file zipped by java.util.zip

Hi all,
I use the followcode to create a zip file, and i downlaod it and try to use winzip to unzip this file but fail. The path is correct and i got the zip file. but it just cannot unzip.
pls help
thanks alot.
Kin
 int count = 0;
 count = ContentDocuments.size();
 for (int i = 0; i < bb; i++) {
 System.out.println(filenames[i] + "");
 // Create a buffer for reading the files
 byte[] buf = new byte[10*1024*1024];
 try {
 String outFilename = MyDir + "zipfile/" + getContentID2()+".zip";
 System.out.println("outFilename = " + outFilename);
 ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outFilename));
 for (int i=0; i<filenames.length; i++) {
 FileInputStream in = new FileInputStream(filenames);
 out.putNextEntry(new ZipEntry(filenames[i]));
 int len;
 while ((len = in.read(buf)) != -1) {
 out.write(buf, 0, len);
 out.closeEntry();
 in.close();
 out.close();
 } catch (IOException e) {
 System.err.println("zipprocess " + e.getMessage());

I've written a replacement zip file creator class. Not much tested but it seems to work, however I've yet to try it with the version of WINZIP that rejected my previous attempts. Oh, and the stored dates are garbage.
* ZipOutputFile.java
* Created on 25 March 2004, 13:08
package zip;
import java.io.IOException;
import java.nio.ByteBuffer;
* Creates a ZIP archive in a file which WINZIP should be able to read.
* Unfortunately zip archives generated by the standard Java class
* {@link java.util.zip.ZipOutputStream}, while adhering to PKZIPs format specification,
* don't appear to be readable by some versions of WinZip and similar utilities. This is
* probably because they use
* a format specified for writing to a non-seakable stream, where the length and CRC of
* a file is writen to a special block following the data. Since the length of the binary
* date is unknown this makes an archive quite complicated to read, and it looks like
* WinZip hasn't bothered.
* All data is Deflated. Close completes the archive, flush terminates the current entry.
* @see java.util.zip.ZipOutputStream
* @author Malcolm McMahon
public class ZipOutputFile extends java.io.OutputStream {
 byte[] oneByte = new byte[1];
 java.io.RandomAccessFile archive;
 public final static short DEFLATE_METHOD = 8;
 public final static short VERSION_CODE = 20;
 public final static short MIN_VERSION = 10;
 public final static int ENTRY_HEADER_MAGIC = 0x04034b50;
 public final static int CATALOG_HEADER_MAGIC = 0x02014b50;
 public final static int CATALOG_END_MAGIC = 0x06054b50;
 private final static short DISC_NUMBER = 0;
 ByteBuffer entryHeader = ByteBuffer.wrap(new byte[30]);
 ByteBuffer entryLater = ByteBuffer.wrap(new byte[12]);
 java.util.zip.CRC32 crcAcc = new java.util.zip.CRC32();
 java.util.zip.Deflater def = new java.util.zip.Deflater(java.util.zip.Deflater.DEFLATED, true);
 int totalCompressed;
 long MSEPOCH;
 byte [] deflateBuf = new byte[2048];
 public static final long SECONDS_TO_DAYS = 60 * 60 * 24;
 * Entry stores info about each file stored
 private class Entry {
 long offset; // position of header in file
 byte[] name;
 long crc;
 int compressedSize;
 int uncompressedSize;
 java.util.Date date;
 * Contructor also writes initial header.
 * @param fileName Name under which data is stored.
 * @param date Date to label the file with
 * @TODO get the date stored properly
 public Entry(String fileName, java.util.Date date) throws IOException {
 name = fileName.getBytes();
 this.date = date == null ? new java.util.Date() : date;
 entryHeader.position(10);
 putDate(entryHeader);
 entryHeader.putShort(26, (short)name.length);
 offset = archive.getFilePointer();
 archive.write(entryHeader.array());
 archive.write(name);
 catalog.add(this);
 crcAcc.reset();
 totalCompressed = 0;
 def.reset();
 * Finish writing entry data. Save the lenghts & crc for catalog
 * and go back and fill them in in the entry header.
 public void close() throws IOException {
 def.finish();
 while(!def.finished())
 deflate();
 entryLater.position(0);
 crc = crcAcc.getValue();
 compressedSize = totalCompressed;
 uncompressedSize = def.getTotalIn();
 entryLater.putInt((int)crc);
 entryLater.putInt(compressedSize);
 entryLater.putInt(uncompressedSize);
 long eof = archive.getFilePointer();
 archive.seek(offset + 14);
 archive.write(entryLater.array());
 archive.seek(eof);
 * Write the catalog data relevant to this entry. Buffer is
 * preloaded with fixed data.
 * @param buf Buffer to organise fixed lenght part of header
 public void writeCatalog(ByteBuffer buf) throws IOException {
 buf.position(12);
 putDate(buf);
 buf.putInt((int)crc);
 buf.putInt(compressedSize);
 buf.putInt(uncompressedSize);
 buf.putShort((short)name.length);
 buf.putShort((short)0); // extra field length
 buf.putShort((short)0); // file comment length
 buf.putShort(DISC_NUMBER); // disk number
 buf.putShort((short)0); // internal attributes
 buf.putInt(0); // external file attributes
 buf.putInt((int)offset); // file position
 archive.write(buf.array());
 archive.write(name);
 * This writes the entries date in MSDOS format.
 * @param buf Where to write it
 * @TODO Get this generating sane dates
 public void putDate(ByteBuffer buf) {
 long msTime = (date.getTime() - MSEPOCH) / 1000;
 buf.putShort((short)(msTime % SECONDS_TO_DAYS));
 buf.putShort((short)(msTime / SECONDS_TO_DAYS));
 private Entry entryInProgress = null; // entry currently being written
 private java.util.ArrayList catalog = new java.util.ArrayList(12); // all entries
 * Start a new output file.
 * @param name The name to store as
 * @param date Date - null indicates current time
 public java.io.OutputStream openEntry(String name, java.util.Date date) throws IOException{
 if(entryInProgress != null)
 entryInProgress.close();
 entryInProgress = new Entry(name, date);
 return this;
 * Creates a new instance of ZipOutputFile
 * @param fd The file to write to
 public ZipOutputFile(java.io.File fd) throws IOException {
 this(new java.io.RandomAccessFile(fd, "rw"));
 * Create new instance of ZipOutputFile from RandomAccessFile
 * @param archive RandomAccessFile
 public ZipOutputFile(java.io.RandomAccessFile archive) {
 this.archive = archive;
 entryHeader.order(java.nio.ByteOrder.LITTLE_ENDIAN); // create fixed fields of header
 entryLater.order(java.nio.ByteOrder.LITTLE_ENDIAN);
 entryHeader.putInt(ENTRY_HEADER_MAGIC);
 entryHeader.putShort(MIN_VERSION);
 entryHeader.putShort((short)0); // general purpose flag
 entryHeader.putShort(DEFLATE_METHOD);
 java.util.Calendar cal = java.util.Calendar.getInstance();
 cal.clear();
 cal.set(java.util.Calendar.YEAR, 1950);
 cal.set(java.util.Calendar.DAY_OF_MONTH, 1);
// def.setStrategy(Deflater.HUFFMAN_ONLY);
 MSEPOCH = cal.getTimeInMillis();
 * Writes the master catalogue and postamble and closes the archive file.
 public void close() throws IOException{
 if(entryInProgress != null)
 entryInProgress.close();
 ByteBuffer catEntry = ByteBuffer.wrap(new byte[46]);
 catEntry.order(java.nio.ByteOrder.LITTLE_ENDIAN);
 catEntry.putInt(CATALOG_HEADER_MAGIC);
 catEntry.putShort(VERSION_CODE);
 catEntry.putShort(MIN_VERSION);
 catEntry.putShort((short)0);
 catEntry.putShort(DEFLATE_METHOD);
 long catStart = archive.getFilePointer();
 for(java.util.Iterator it = catalog.iterator(); it.hasNext();) {
 ((Entry)it.next()).writeCatalog(catEntry);
 catEntry.position(0);
 catEntry.putInt(CATALOG_END_MAGIC);
 catEntry.putShort(DISC_NUMBER);
 catEntry.putShort(DISC_NUMBER);
 catEntry.putShort((short)catalog.size());
 catEntry.putShort((short)catalog.size());
 catEntry.putInt((int)(archive.getFilePointer() - catStart));
 catEntry.putInt((int)catStart);
 catEntry.putShort((short)0);
 archive.write(catEntry.array(), 0, catEntry.position());
 archive.setLength(archive.getFilePointer()); // truncate if old file
 archive.close();
 def.end();
 * Closes entry in progress.
 public void flush() throws IOException{
 if(entryInProgress == null)
 throw new IllegalStateException("Must call openEntry before writing");
 entryInProgress.close();
 entryInProgress = null;
 * Standard write routine. Defined by {@link java.io.OutputStream}.
 * Can only be used once openEntry has defined the file.
 * @param b Bytes to write
 public void write(byte[] b) throws IOException{
 if(entryInProgress == null)
 throw new IllegalStateException("Must call openEntry before writing");
 crcAcc.update(b);
 def.setInput(b);
 while(!def.needsInput())
 deflate();
 * Standard write routine. Defined by {@link java.io.OutputStream}.
 * Can only be used once openEntry has defined the file.
 * @param b Bytes to write
 public void write(int b) throws IOException{
 oneByte[0] = (byte)b;
 crcAcc.update(b);
 write(oneByte, 0, 1);
 * Standard write routine. Defined by {@link java.io.OutputStream}.
 * Can only be used once openEntry has defined the file.
 * @param b Bytes to write
 * @param off Start offset
 * @param len Byte count
 public void write(byte[] b, int off, int len) throws IOException{
 if(entryInProgress == null)
 throw new IllegalStateException("Must call openEntry before writing");
 crcAcc.update(b, off, len);
 def.setInput(b, off, len);
 while(!def.needsInput())
 deflate();
 * Gets a buffer full of coded data from the deflater and writes it to archive.
 private void deflate() throws IOException {
 int len = def.deflate(deflateBuf);
 totalCompressed += len;
 if(len > 0)
 archive.write(deflateBuf, 0, len);

How to check & unzip zip file using java

Dear friends
How to check & unzip zip file using java, I have some files which are pkzip or some other zip I want to find out the type of ZIp & then I want to unzip these files, pls guide me
thanks

How to check & unzip zip file using java, I have
ve some files which are pkzip or some other zip I
want to find out the type of ZIp & then I want to
unzip these files, pls guide meWhat do you mean "other zip"? Either they're zip archives or not, there are no different types.

Unzipping Files in Folder using Java

Hello,
I am working on a project and I am having trouble writing a program that will unzip all the files in a given directory (using Java). The directory is known, but the name and number of files to be unzipped will vary on each execution. The files need to be unzipped and then placed in a different specified folder.
Thank you for your assistance.

This should give you some idea. Be sure to import java.util.zip.
    /** unzipDirArchive */
    public static void unzipDirArchive(File inFile)
        throws IOException {
        ZipEntry entry = null;
        // Create stream to read the compressed file.
        ZipInputStream zis = new ZipInputStream(new FileInputStream((inFile)));
        // Create stream to write the output file.
        FileOutputStream fos = null;
        byte buffer[] = new byte[4096];
        int bytesRead;
        boolean dirCreated = false;
        // For each entry in the ZIP input file.
        while ((entry = zis.getNextEntry()) != null) {
            // If we have not created the enclosing directory.
            if (!dirCreated) {
                // Create the directory.
                int endIndex = entry.getName().lastIndexOf('/');
                String dirName = entry.getName().substring(0, endIndex);
                // DEBUG
                // System.out.println("dirName is: " + dirName + ".");
                File newDir = new File(dirName);
                // Check if the output dir already exists.
                if (newDir.exists()) {
                    System.err.println("Uncompress: Output directory " + dirName +
                                       " already exists.");
                    System.exit(-5);
                else {
                    // If we successfully created the enclosing directory.
                    if (newDir.mkdir()) {
                        dirCreated = true;
                    else {
                        System.err.println("Uncompress: Cannot create directory " +
                                            dirName + ".");
                        System.exit(-6);
                } // end if newDir.exists
            } // end if !dirCreated
            System.out.println("Inflating: " + entry.getName());
            fos = new FileOutputStream(entry.getName());
            // Copy the data from the ZIP file entry to a file.
            while((bytesRead = zis.read(buffer)) != -1)
                fos.write(buffer, 0, bytesRead);
            fos.close();
        } // end while more entries in the ZIP file
        zis.close();
    } // end method unzipDirArchive

Unzipping files using java.util

I am trying to unzip files using java.util.zip
It works fine when I am trying to unzip a file that is already residing on the server.
But I want to unzip the file that user will upload to the server .
My code is uploading zip file to server but not able to unzip this zip file giving error
java.util.zip.ZipException: error in opening zip file
What could be the problem
I am not getting exactly
Can you give me any clue
Thanks

sounds like the uploading is the problem. Are you FTPing the file? If so check that it's being transferred in binary, not ascii.

Help:how to use java.util.jar to zip or unzip a binary file.

how to use java.util.jar to zip or unzip a binary file or a file contain native code.

It may help you to know how I add JARs
1. I open my Project (myProject)
2. I Mount the JAR to the FileSystem (like mypackages.jar = which includes com.mus.de.myClass.java)
3. I Mount the File to the FileSystem (like c:\..myfiles..\myProject)
3.1 I add the File to my Project
4. I select File | New -> Classes | Main
4.1 I typed "import com.mus.de.myClass.java" to refer to this package.
4.2 I called some of the public methods
thats it
Andreas

Update file date/time stamp using java

Let me explain you what I am going through:-
I have created a java based installer using Jexpress tool and after I do the installation of my files, the files takes the current date rather then taking the date when it was created or modified.
Everything goes into JAR and I heard that Jar file do not retain the date/time stamp of the file.
I would like to know if we can change the date and time stamp of the files using Java.
Is there any method to do that or can we do this by writing the java class?
Thank You
Mehul

Did you check it?
I did.
$ jar cvf ~/ui *.m3u
added manifest
adding: Amollhgv.m3u(in = 42) (out= 24)(deflated 42%)
adding: Brand1.m3u(in = 56) (out= 27)(deflated 51%)
adding: Brand2.m3u(in = 42) (out= 24)(deflated 42%)
adding: Brand3.m3u(in = 42) (out= 24)(deflated 42%)
adding: Brand4.m3u(in = 42) (out= 24)(deflated 42%)
adding: Brand5.m3u(in = 42) (out= 24)(deflated 42%)
adding: Brand6.m3u(in = 42) (out= 24)(deflated 42%)
adding: Edurhgv.m3u(in = 42) (out= 24)(deflated 42%)
$ unzip -l ~/ui
Archive: /home/ijbalazs/ui
Length     Date   Time    Name
        0 12-04-03 17:53   META-INF/
       71 12-04-03 17:53   META-INF/MANIFEST.MF
       42 08-26-02 01:03   Amollhgv.m3u
       56 11-22-98 01:15   Brand1.m3u
       42 08-26-02 01:04   Brand2.m3u
       42 08-26-02 01:04   Brand3.m3u
       42 08-26-02 01:04   Brand4.m3u
       42 08-26-02 01:04   Brand5.m3u
       42 08-26-02 01:04   Brand6.m3u
       42 08-26-02 01:04   Edurhgv.m3u
      421                   10 files

Using java.util.zip.ZipFile

I have files that are about 4GB (with possible growth in the future) that will be sent to a file system and a java process will be used to unzip them.
Is there a size limit for unzipping files using java.util.zip.ZipFile?
annie

Chicon wrote:
Hi annie613,
Indeed, there's a size limit of 2GB for unzipping files, more precisely when the size of the inflated file reaches 2GB !
Edit : inflated instead of deflated
Edited by: Chicon on Jun 29, 2009 3:56 PMHmm, this blog says that the current limit of 4GB has been expanded by implementing ZIP64 support in OpenJDK7 build(b55).
[http://blogs.sun.com/xuemingshen/entry/zip64_support_for_4g_zipfile]

Can I use Java Card Development Kit 2.2.1 on Windows XP?

Can I use Java Card Development Kit 2.2.1 on Windows XP?
If no, which kit supports XP?

It is not as strait forward as per say.
I would like to share some tips that I have learnt duirng my recent experience with Java Card Development Kit 2.1.2 ( It presumed that JAVA SDK and JCDK is properly installed:
Additonal installation
- you need to download Java Communicatons API version 2.o for Windows at http://java.sun.com/products/javacomm/downloads/index.html
- unzip the downloaded file javacom20-win20.zip
- copy comm.jar and javax.com.properties to %JAVA_HOME%\lib
- copy win32com.dll to %JAVA_HOME%\bin
Configuration of Environment
- Activate System under Control Panel
- Click Environment Variable button under Advance Tab.
- Check that JAVA_HOME and JC21_HOME are there under User Variables for user123
- Create a new enviroment by clicking New button under User Variables and Enter "CLASSPATH" for Variable Name and ".;c:\j2sdk1.4.1_04\lib\comm.jar for Variable Value ( the ".;" is important for the entry and varies according to your JAVA_HOME)
Modifying %JC21_HOME%\samples\build_samples.bat
- Next you need to modify the compiler option in build_samples.bat
- Use editor to look for the portion "Compile Sample" and add "- target 1.1" to every statements here. A sample is listed below:
%JAVA_HOME%\bin\javac -target 1.1 %JCFLAGS% src\com\sun\javacard\samples\HelloWorld\*.java
You may proceed to test the demo codes as instrucrted in the User Guide.
I hope the above will help those who are keen to have a head start in Java Card Developemnet.

How to use Java Mail API in Unix

I am trying to write some code using Java mail API. I want to execute it in Unix. I downloaded the mail API to windows machine and ftped the mail.jar file to a Unix machine. Then I set the class path as below:
export CLASSPATH=$CLASSPATH:/home.../mail.jar
Then I tried to compile my Java program. The output is as below:
error: error reading /home.../mail.jar; invalid END header (bad central directory offset)
mail.java:1: package javax.mail does not exist
import javax.mail.*;
Can any one please help me out.

You should also include the "activation.jar" file that you obtained from
downloading the Java Activation Framework, in your CLASSPATH.
For example:
export CLASSPATH=$CLASSPATH:/urPath/activation/activation.jar
Besides, assuming you unzipped javamail-1_4_1.zip in home/download the following should work
export CLASSPATH=$CLASSPATH:home/download/javamail-1.4.1/mail.jar:.

How to untar a tar.gz using java libraries

hi all!!!
can u please help me to unzip and untar a tar.gz file without using the package com.ice.tar
thanks everyone

Are you running your application on unix env?. can
you give some more info on your requirement.iam using windows
i want to unzip and untar the file using java program
is there any package in java to untar a tar.gz file
(thanx anyway for suggesting the thread com.ice.tar, i already went through that)
i already unzipped the file using GZIPInputStream
it will be helpful if you paste the source code...

I am trying to use java file as Model layer and jsf as presentation layer

I am trying to use java file as Model layer and jsf as presentation layer and need some help
I successfully get the value of h:outputText from java file by doing simple binding operation but I am facing problems when I am trying to fill h:dataTable
I create java file
package oracle.model;
import java.sql.;*
import java.util.;*
*public class TableBean {*
Connection con ;
Statement ps;
ResultSet rs;
private List perInfoAll = new ArrayList();
*public List getperInfoAll() {*
perInfoAll.add(0,new perInfo("name","username","blablabla"));
return perInfoAll;
*public class perInfo {*
String uname;
String firstName;
String lastName;
*public perInfo(String firstName,String lastName,String uname) {*
this.uname = uname;
this.firstName = firstName;
this.lastName = lastName;
*public String getUname() {*
return uname;
*public String getFirstName() {*
return firstName;
*public String getLastName() {*
return lastName;
right click on the file and choose 'create data control'
then i wrote the jsf file:
*<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>*
*<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>*
*<f:view>*
*<h:dataTable id="dt1" value="#{bindings.perInfoAll}"*
var="item" bgcolor="#F1F1F1" border="10"
cellpadding="5" cellspacing="3" rows="4" width="50%"
dir="LTR" frame="hsides" rules="all"
*>*
*<f:facet name="header">*
*<h:outputText value="This is 'dataTable' demo" id="ot6"/>*
*</f:facet>*
*<h:column id="c2">*
*<f:facet name="header">*
*<h:outputText value="First Name" id="ot1"/>*
*</f:facet>*
*<h:outputText style="" value="#{item.firstName}"*
id="ot2"/>
*</h:column>*
*<h:column id="c4">*
*<f:facet name="header">*
*<h:outputText value="Last Name" id="ot9"/>*
*</f:facet>*
*<h:outputText value="#{item.lastName}" id="ot8"/>*
*</h:column>*
*<h:column id="c3">*
*<f:facet name="header">*
*<h:outputText value="Username" id="ot7"/>*
*</f:facet>*
*<h:outputText value="#{item.uname}" id="ot4"/>*
*</h:column>*
*<f:facet name="footer">*
*<h:outputText value="The End" id="ot3"/>*
*</f:facet>*
*</h:dataTable>*
*</center>*
*</af:document>*
*</f:view>*
but nothing is appear in my table
I know that there is something wrong in calling the binding object
I need help pls and where can i find some help to deal with another tag types
thanks

i dragged the "perInfoAll" from my "Data Controls" and choosed adf table (even I know that new table with adf tags well be generated and i want table with jsf tags)
and this code is generated
*<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"*
*"http://www.w3.org/TR/html4/loose.dtd">*
*<%@ page contentType="text/html;charset=UTF-8"%>*
*<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>*
*<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>*
*<%@ taglib uri="http://xmlns.oracle.com/adf/faces/rich" prefix="af"%>*
*<f:view>*
*<af:document id="d1">*
*<af:messages id="m1"/>*
*<af:form id="f1">*
*<af:table value="#{bindings.perInfoAll1.collectionModel}" var="row"*
*rows="#{bindings.perInfoAll1.rangeSize}"*
*emptyText="#{bindings.perInfoAll1.viewable ? 'No data to display.' : 'Access Denied.'}"*
*fetchSize="#{bindings.perInfoAll1.rangeSize}"*
*rowBandingInterval="0"*
*selectionListener="#{bindings.perInfoAll1.collectionModel.makeCurrent}"*
*rowSelection="multiple" id="t1">*
*<af:column sortProperty="uname" sortable="false"*
*headerText="#{bindings.perInfoAll1.hints.uname.label}"*
*id="c1">*
*<af:inputText value="#{row.bindings.uname.inputValue}"*
*label="#{bindings.perInfoAll1.hints.uname.label}"*
*required="#{bindings.perInfoAll1.hints.uname.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.uname.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.uname.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.uname.tooltip}"*
*id="it3">*
*<f:validator binding="#{row.bindings.uname.validator}"/>*
*</af:inputText>*
*</af:column>*
*<af:column sortProperty="firstName" sortable="false"*
*headerText="#{bindings.perInfoAll1.hints.firstName.label}"*
*id="c2">*
*<af:inputText value="#{row.bindings.firstName.inputValue}"*
*label="#{bindings.perInfoAll1.hints.firstName.label}"*
*required="#{bindings.perInfoAll1.hints.firstName.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.firstName.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.firstName.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.firstName.tooltip}"*
*id="it2">*
*<f:validator binding="#{row.bindings.firstName.validator}"/>*
*</af:inputText>*
*</af:column>*
*<af:column sortProperty="lastName" sortable="false"*
*headerText="#{bindings.perInfoAll1.hints.lastName.label}"*
*id="c3">*
*<af:inputText value="#{row.bindings.lastName.inputValue}"*
*label="#{bindings.perInfoAll1.hints.lastName.label}"*
*required="#{bindings.perInfoAll1.hints.lastName.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.lastName.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.lastName.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.lastName.tooltip}"*
*id="it1">*
*<f:validator binding="#{row.bindings.lastName.validator}"/>*
*</af:inputText>*
*</af:column>*
*</af:table>*
*</af:form>*
*</af:document>*
*</f:view>*
but when run it i see the following errors
*Class oracle.adf.model.adapter.bean.BeanDataControl can not access a member of class nl.amis.hrm.EmpManager with modifiers "private"*
*Object EmpManager of type DataControl is not found.*
*java.lang.NullPointerException*
*Class oracle.adf.model.adapter.bean.BeanDataControl can not access a member of class nl.amis.hrm.EmpManager with modifiers "private"*
*Object EmpManager of type DataControl is not found.*
*java.lang.NullPointerException*
:(

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