tl  tr
  Home | Tutorials | Articles | Videos | Products | Tools | Search
Open Source | Tag Cloud | Follow Us | Bookmark | Contact   
 
 Java > Zip Utilities > GZip File UnCompression

GZip File UnCompression 

The following example shows how to unzip a file compressed using GZip compression. To create uncompressed file we need to copy bytes from GZIP input stream to output stream.

File Name  :  
com/bethecoder/tutorials/utils/zip/GZipFileUnCompression.java 
Author  :  Sudhakar KV
Email  :  kvenkatasudhakar@gmail.com
   
package com.bethecoder.tutorials.utils.zip;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.zip.GZIPInputStream;

public class GZipFileUnCompression {

  /**
   @param args
   */
  public static void main(String[] args) {

    String srcZipFilePath = "C:\\prop_file.txt.gzip";
    String tgtFilePath = "C:\\prop_file.txt"

    gzipUnCompressFile(srcZipFilePath, tgtFilePath);
  }

  public static void gzipUnCompressFile(String srcZipFilePath, String tgtFilePath) {
    try {
       //Open GZIP input stream
      GZIPInputStream inStream = new GZIPInputStream(new FileInputStream(srcZipFilePath));

      //Open target stream
      OutputStream outStream = new FileOutputStream(tgtFilePath);

      //Copy bytes from source stream to target stream
      byte[] buf = new byte[2048];
      int len;
      while ((len = inStream.read(buf)) 0) {
        outStream.write(buf, 0, len);
      }

      //Close all streams
      inStream.close();
      outStream.close();

      System.out.println("File successfully uncompressed : " + tgtFilePath);

    catch (IOException e) {
      e.printStackTrace();
    }
  }
}
   

It gives the following output,
File successfully uncompressed : C:\prop_file.txt


                    Print

   



Books Recommendation

 
 
bl  br