Java Unzip to Folder Unzip(String zipFile, String outputDirectory)

Description

Unzip a zipped file (eg.

License

Open Source License

Parameter

Parameter	Description
zipFile	zipped file to unzip
outputDirectory	destination directory for unzipped content

Return

true if successfully unzipped

Declaration

public static boolean Unzip(String zipFile, String outputDirectory) 

Method Source Code

//package com.java2s;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;
import java.util.Enumeration;
import java.util.regex.Matcher;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

public class Main {
    /**//from  w  w  w.  j  av a 2 s.co  m
     * Unzip a zipped file (eg. kmz, zip) into given directory
     * 
     * @param zipFile
     *            zipped file to unzip
     * @param outputDirectory
     *            destination directory for unzipped content
     * @return true if successfully unzipped
     */
    public static boolean Unzip(String zipFile, String outputDirectory) {
        String outDir = outputDirectory;
        if (!outDir.endsWith("/") && !outDir.endsWith("\\"))
            outDir += File.separator;

        BufferedOutputStream dest = null;
        BufferedInputStream is = null;
        int BUFFER = 2048;
        ZipEntry entry;
        ZipFile zipfile;
        try {
            zipfile = new ZipFile(zipFile);
            Enumeration<? extends ZipEntry> e = zipfile.entries();
            while (e.hasMoreElements()) {
                entry = e.nextElement();
                if (entry.isDirectory()) {
                    (new File(outDir + entry.getName())).mkdir();
                    continue;
                }

                String name;

                if (File.separator.equals("\\")) {
                    name = entry.getName().replaceAll("/", Matcher.quoteReplacement(File.separator));
                } else {
                    name = entry.getName().replaceAll("\\\\", Matcher.quoteReplacement(File.separator));
                }

                String filename = outDir + name;
                String filePath = filename.substring(0, filename.lastIndexOf(File.separator));

                // Create directory if not existing
                if (!(new File(filePath)).exists()) {
                    (new File(filePath)).mkdirs();
                }
                is = new BufferedInputStream(zipfile.getInputStream(entry));
                int count;
                byte data[] = new byte[BUFFER];
                FileOutputStream fos = new FileOutputStream(filename);
                dest = new BufferedOutputStream(fos, BUFFER);
                while ((count = is.read(data, 0, BUFFER)) != -1) {
                    dest.write(data, 0, count);
                }
                dest.flush();
                dest.close();
                is.close();
            }
            zipfile.close();
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            System.err.println("Couldn't unzip file: " + zipFile);
            e1.printStackTrace();
            return false;
        }
        return true;
    }
}

Related

1. unzip(String toUnpackName)
2. unzip(String zip, String dest)
3. unzip(String zip, String folder)
4. unzip(String zip, String path)
5. unzip(String zip, String unzipDir, int bufferSize)
6. unzip(String zipFile, String targetFolder)
7. unzip(String zipFile, String targetFolder, String... fileSuffixes)
8. unzip(String zipFile, String targetPath)
9. unzip(String zipFileName, String outputDirectory)