Java Zip Files addToZip(File directoryToZip, File file, ZipOutputStream zos)

Description

Add a file to the zip file

License

Open Source License

Parameter

Parameter	Description
directoryToZip	- zip file
file	- a file to add
zos	- ZipOutputStream

Exception

Parameter	Description
FileNotFoundException	an exception
IOException	an exception

Declaration

public static void addToZip(File directoryToZip, File file, ZipOutputStream zos)
        throws FileNotFoundException, IOException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2015 CA.  All rights reserved.
 *
 * This source file is licensed under the terms of the Eclipse Public License 1.0
 * For the full text of the EPL please see https://www.eclipse.org/legal/epl-v10.html
 *******************************************************************************/

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class Main {
    /**//from   w w  w  .j av  a  2s.  c o m
     * Add a file to the zip file
     * 
     * @param directoryToZip - zip file
     * @param file          - a file to add
     * @param zos           - ZipOutputStream
     * @throws FileNotFoundException
     * @throws IOException
     */
    public static void addToZip(File directoryToZip, File file, ZipOutputStream zos)
            throws FileNotFoundException, IOException {

        FileInputStream fis = null;

        try {
            fis = new FileInputStream(file);

            // we want the zipEntry's path to be a relative path that is relative
            // to the directory being zipped, so chop off the rest of the path
            String zipFilePath = file.getCanonicalPath().substring(directoryToZip.getCanonicalPath().length() + 1,
                    file.getCanonicalPath().length());
            System.out.println("Writing '" + zipFilePath + "' to zip file");
            ZipEntry zipEntry = new ZipEntry(zipFilePath);
            zos.putNextEntry(zipEntry);

            byte[] bytes = new byte[1024];
            int length;
            while ((length = fis.read(bytes)) >= 0) {
                zos.write(bytes, 0, length);
            }
        } finally {
            safeZipOutputStreamcloseEntry(zos);
            safeFileInputStreamClose(fis);
        }
    }

    /**
     * Closes the current ZIP entry and positions the stream for writing the next entry
     * 
     * @param zos - an output stream filter for writing files in the ZIP file format
     */
    public static void safeZipOutputStreamcloseEntry(ZipOutputStream zos) {
        if (zos != null) {
            try {
                zos.closeEntry();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * Closes the file input stream and releases any system resources associated with the stream.
     * 
     * @param fis - reading streams of raw bytes 
     */
    public static void safeFileInputStreamClose(FileInputStream fis) {
        if (fis != null) {
            try {
                fis.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

Related

1. addFileToZip(ZipOutputStream zipOutputStream, File file, String basePath)
2. addFileToZip(ZipOutputStream zipOutputStream, String path, byte[] bytes)
3. addFileToZip(ZipOutputStream zos, File file, File rootDir)
4. addFileToZipOutputStream(File file, ZipOutputStream zipOs)
5. addToZip(byte[] zip, String file, String fileName)
6. addToZip(File f, int truncate, ZipOutputStream os, byte[] buff)
7. addToZip(File file, ZipOutputStream out, String folder)
8. addToZip(File input, String entryName, ZipOutputStream zos, boolean withHidden, Set excludeEntries)
9. addToZip(String path, String srcFile, ZipOutputStream zip)