Here you can find the source of upZipFile(File zipFile, String folderPath)
public static void upZipFile(File zipFile, String folderPath) throws ZipException, IOException
//package com.java2s; //License from project: Open Source License import java.io.*; import java.util.Enumeration; import java.util.zip.ZipEntry; import java.util.zip.ZipException; import java.util.zip.ZipFile; public class Main { public static void upZipFile(File zipFile, String folderPath) throws ZipException, IOException { File desDir = new File(folderPath); if (!desDir.exists()) { desDir.mkdirs();// w w w .ja v a 2 s . c om } ZipFile zf = new ZipFile(zipFile); for (Enumeration<?> entries = zf.entries(); entries .hasMoreElements();) { ZipEntry entry = ((ZipEntry) entries.nextElement()); InputStream in = zf.getInputStream(entry); if (entry.getName() == null || entry.getName().trim().length() == 0) { continue; } String str = folderPath + File.separator + new String(entry.getName().getBytes("8859_1"), "GB2312"); File desFile = new File(str); if (!desFile.exists()) { File fileParentDir = desFile.getParentFile(); if (!fileParentDir.exists()) { fileParentDir.mkdirs(); } desFile.createNewFile(); } else { desFile.delete(); } OutputStream out = new FileOutputStream(desFile); byte buffer[] = new byte[1024]; int realLength; while ((realLength = in.read(buffer)) > 0) { out.write(buffer, 0, realLength); } in.close(); out.close(); } zf.close(); } }