Java tutorial
//package com.java2s; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.Enumeration; import java.util.zip.ZipEntry; import java.util.zip.ZipException; import java.util.zip.ZipFile; public class Main { private static final int BUFF_SIZE = 1024 * 1024; public static void upZipFile(File zipFile, String folderPath) { ZipFile zf; try { zf = new ZipFile(zipFile); for (Enumeration<?> entries = zf.entries(); entries.hasMoreElements();) { ZipEntry entry = ((ZipEntry) entries.nextElement()); if (entry.isDirectory()) { String dirstr = entry.getName(); dirstr = new String(dirstr.getBytes("8859_1"), "GB2312"); File f = new File(dirstr); f.mkdir(); continue; } InputStream in = zf.getInputStream(entry); String str = folderPath + File.separator + entry.getName(); str = new String(str.getBytes("8859_1"), "GB2312"); File desFile = new File(str); if (!desFile.exists()) { File fileParentDir = desFile.getParentFile(); if (!fileParentDir.exists()) { fileParentDir.mkdirs(); } desFile.createNewFile(); } OutputStream out = new FileOutputStream(desFile); byte buffer[] = new byte[BUFF_SIZE]; int realLength; while ((realLength = in.read(buffer)) > 0) { out.write(buffer, 0, realLength); } in.close(); out.close(); } } catch (ZipException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }