Java Unzip to Folder unzip(String sourceFile, String destDir)

Description

unzip

License

Apache License

Declaration

public static void unzip(String sourceFile, String destDir) throws IOException 

Method Source Code

//package com.java2s;
/*/*from   ww w  . ja  va2 s. c  om*/
 * Copyright 2009-2012 by The Regents of the University of California
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * you may obtain a copy of the License from
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class Main {
    public static void unzip(String sourceFile, String destDir) throws IOException {
        BufferedOutputStream dest = null;
        FileInputStream fis = new FileInputStream(sourceFile);
        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
        ZipEntry entry = null;

        int BUFFER_SIZE = 4096;
        while ((entry = zis.getNextEntry()) != null) {
            String dst = destDir + File.separator + entry.getName();
            if (entry.isDirectory()) {
                createDir(destDir, entry);
                continue;
            }
            int count;
            byte data[] = new byte[BUFFER_SIZE];

            // write the file to the disk
            FileOutputStream fos = new FileOutputStream(dst);
            dest = new BufferedOutputStream(fos, BUFFER_SIZE);
            while ((count = zis.read(data, 0, BUFFER_SIZE)) != -1) {
                dest.write(data, 0, count);
            }
            // close the output streams
            dest.flush();
            dest.close();
        }

        zis.close();
    }

    private static void createDir(String destDirectory, ZipEntry entry) {
        String name = entry.getName();
        int index = name.lastIndexOf(File.separator);
        String dirSequence = name.substring(0, index);
        File newDirs = new File(destDirectory + File.separator + dirSequence);
        newDirs.mkdirs();
    }
}

Related

1. unzip(String inFilePath)
2. unzip(String inFilePath, String outFilePath)
3. unzip(String inputZipPath, String destinationDirectory)
4. unzip(String path, int buffer)
5. unZip(String pathDest, BufferedInputStream buffInputStream)
6. unzip(String sourceFile, String destDir)
7. unzip(String sourceFile, String toDir)
8. unzip(String sourceFileName, String destPath)
9. unzip(String sourceZip, String targetDirectory)