How To Decompress Files From A ZIP File Using JAVA

How To Decompress Files From A ZIP File Using JAVA


import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class UnZip
{
    List<String> fileList;
    //private static final String INPUT_ZIP_FILE = "C:\\MyFile.zip";
    private static final String INPUT_ZIP_FILE = "D:\\FileExtractTesting\\Demo.zip";
    private static final String OUTPUT_FOLDER = "D:\\FileExtractTesting";

    public static void main( String[] args )
    {
    UnZip unZip = new UnZip();
    unZip.unZipIt(INPUT_ZIP_FILE,OUTPUT_FOLDER);
    }

    /**
     * Unzip it
     * @param zipFile input zip file
     * @param output zip file output folder
     */
    public void unZipIt(String zipFile, String outputFolder){

     byte[] buffer = new byte[1024];

     try{

    //create output directory is not exists
    File folder = new File(OUTPUT_FOLDER);
    if(!folder.exists()){
    folder.mkdir();
    }

    //get the zip file content
    ZipInputStream zis =
    new ZipInputStream(new FileInputStream(zipFile));
    //get the zipped file list entry
    ZipEntry ze = zis.getNextEntry();

    while(ze!=null){

      String fileName = ze.getName();
           File newFile = new File(outputFolder + File.separator + fileName);

           System.out.println("file unzip : "+ newFile.getAbsoluteFile());

            //create all non exists folders
            //else you will hit FileNotFoundException for compressed folder
            new File(newFile.getParent()).mkdirs();

            FileOutputStream fos = new FileOutputStream(newFile);            

            int len;
            while ((len = zis.read(buffer)) > 0) {
        fos.write(buffer, 0, len);
            }

            fos.close();  
            ze = zis.getNextEntry();
    }

        zis.closeEntry();
    zis.close();

    System.out.println("Successfully File Unzip Develop By Sagar");

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