Java tutorial
//package com.java2s; 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 { private static final int BUFFER_SIZE = 1024; public static void unZip(String zipFile, String outputFolder) { byte[] buffer = new byte[BUFFER_SIZE]; try { File folder = new File(outputFolder); if (!folder.exists()) { folder.mkdir(); } ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile)); 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()); if (ze.isDirectory()) { newFile.mkdirs(); } else { 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("Done"); } catch (IOException ex) { ex.printStackTrace(); } } }