Here you can find the source of zipDirectory(String dir2zip, ZipOutputStream zos, String zipPath)
private static void zipDirectory(String dir2zip, ZipOutputStream zos, String zipPath) throws IOException, IllegalArgumentException
//package com.java2s; //License from project: Open Source License import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; public class Main { private static void zipDirectory(String dir2zip, ZipOutputStream zos, String zipPath) throws IOException, IllegalArgumentException { File zipDir = new File(dir2zip); //create a new File object based on the directory we have to zip get a listing of the directory content String[] dirList = zipDir.list(); byte[] readBuffer = new byte[2156]; int bytesIn = 0; //loop through dirList, and zip the files for (int i = 0; i < dirList.length; i++) { File f = new File(zipDir, dirList[i]); if (f.isDirectory()) { //if the File object is a directory, call this function again to add its content recursively String filePath = f.getPath(); zipDirectory(filePath, zos, zipPath); continue; }//from w w w . j a v a2 s.c o m //if we reached here, the File object f was not a directory create a FileInputStream on top of f FileInputStream fis = new FileInputStream(f); //create a new zip entry String path = f.getPath().substring(zipPath.length() + 1); ZipEntry anEntry = new ZipEntry(path); //place the zip entry in the ZipOutputStream object zos.putNextEntry(anEntry); //now write the content of the file to the ZipOutputStream while ((bytesIn = fis.read(readBuffer)) != -1) { zos.write(readBuffer, 0, bytesIn); } fis.close(); } } /** * Zip the contents of the directory, and save it in the zipfile * @param dir2zip * @param ZipOutputStream zos * @throws IOException * @throws IllegalArgumentException * @throws IOException * @throws IllegalArgumentException */ public static void zipDirectory(String dir2zip, ZipOutputStream zos) throws IllegalArgumentException, IOException { File zipDir = new File(dir2zip); if (!zipDir.isDirectory()) { throw new IllegalArgumentException("You must pass a directory"); } String zipPath = zipDir.getPath(); zipDirectory(dir2zip, zos, zipPath); } }