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; 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; private static final String ENCODE_GB2312 = "GB2312"; private static final String ENCODE_8859_1 = "8859_1"; public static void upZipFile(File zipFile, String folderPath) throws ZipException, IOException { File desDir = new File(folderPath); if (!desDir.exists()) { desDir.mkdirs();//from ww w . j a va 2s. c o m } ZipFile zf = new ZipFile(zipFile); for (Enumeration<?> entries = zf.entries(); entries .hasMoreElements();) { ZipEntry entry = ((ZipEntry) entries.nextElement()); InputStream in = zf.getInputStream(entry); String str = folderPath + File.separator + entry.getName(); str = new String(str.getBytes(ENCODE_8859_1), ENCODE_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(); } } }