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EJB design: source codes to zip the entire folder not just files by files

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  1. source codes to zip the entire folder not just files by files (9 messages)

    • Posted by: apple low
    • Posted on: June 29 2005 22:26 EDT
    Anyone know how to zip folder? I don't want to zip files by files? Can show it here? Thanks!
    Reply to this

    Threaded Messages (9)

  2. Sorce Code[ Go to top ]

    import java.io.File;
    import java.util.zip.ZipOutputStream;
    import java.io.FileOutputStream;
    import java.io.FileInputStream;
    import java.util.zip.ZipEntry;
    /**
     * FolderZiper provide a static method to zip a folder.
     *
     * @author pitchoun
     */
    public class FolderZiper {
     
    /**
    * Zip the srcFolder into the destFileZipFile. All the folder subtree of the src folder is added to the destZipFile
    * archive.
    *
    * TODO handle the usecase of srcFolder being en file.
    *
    * @param srcFolder String, the path of the srcFolder
    * @param destZipFile String, the path of the destination zipFile. This file will be created or erased.
    */
    static public void zipFolder(String srcFolder, String destZipFile) {
    ZipOutputStream zip = null;
    FileOutputStream fileWriter = null;
    try {
    fileWriter = new FileOutputStream(destZipFile);
    zip = new ZipOutputStream(fileWriter);
    }
    catch (Exception ex){
    ex.printStackTrace();
    System.exit(0);
    }

    addFolderToZip("", srcFolder, zip);
    try {
    zip.flush();
    zip.close();
    }
    catch (Exception ex) {
    ex.printStackTrace();
    }
    }

    /**
    * Write the content of srcFile in a new ZipEntry, named path+srcFile, of the zip stream. The result
    * is that the srcFile will be in the path folder in the generated archive.
    *
    * @param path String, the relatif path with the root archive.
    * @param srcFile String, the absolute path of the file to add
    * @param zip ZipOutputStram, the stream to use to write the given file.
    */
    static private void addToZip(String path, String srcFile, ZipOutputStream zip) {

    File folder = new File(srcFile);
    if (folder.isDirectory()) {
    addFolderToZip(path, srcFile, zip);
    }
    else {
    // Transfer bytes from in to out
    byte[] buf = new byte[1024];
    int len;
    try {
    FileInputStream in = new FileInputStream(srcFile);
    zip.putNextEntry(new ZipEntry(path +"/"+ folder.getName()));
    while ((len = in.read(buf)) > 0) {
    zip.write(buf, 0, len);
    }
    }
    catch (Exception ex){
    ex.printStackTrace();
    }
    }
    }

    /**
    * add the srcFolder to the zip stream.
    *
    * @param path String, the relatif path with the root archive.
    * @param srcFile String, the absolute path of the file to add
    * @param zip ZipOutputStram, the stream to use to write the given file.
    */
    static private void addFolderToZip(String path, String srcFolder, ZipOutputStream zip) {
    File folder = new File(srcFolder);
    String fileListe[] = folder.list();
    try {
    int i = 0;
    while (true) {
    addToZip(path+"/"+ folder.getName(), srcFolder+"/"+fileListe[i], zip);
    i++;
    }
    }
    catch (Exception ex) {
    }
    }
    }
    Reply to this Reply to original

  3. Program cannot be run->think needs a main class[ Go to top ]

    hi, a big thank u to mohit and all.......for the above codes rite, the program cannot be run cos there isn't the hyperlink "run" to run it. think it's becos there is no main class so i was wondering if there are any codes needed for the main class.Can someone help mi with this,can write down the codes here? Thanks!
    Reply to this Reply to original

  4. Source code to call FolderZiper[ Go to top ]

    import java.io.*;

    class UseFolderZiper
    {
     public static void main(String args[])throws IOException
     {
      BufferedReader cin=new BufferedReader(new InputStreamReader(System.in));
      System.out.println("Enter folder nameto be zipped");
      String fileName=cin.readLine();
      String fileNameUnixStyle=fileName.replace('
    ','/');
      FolderZiper obj=new FolderZiper();
      obj.zipFolder(fileNameUnixStyle,fileName+".zip");
     }
    }

    place FolderZiper.class path in the same folder as of UseFolderZiper.java

    And then compile and execute UseFolderZiper.java

    Reply to this Reply to original

  5. code not copied correctly[ Go to top ]

    Replace this statement

    String fileNameUnixStyle=fileName.replace('
    ','/');

    with

    String fileNameUnixStyle=fileName.replace('two backward slashes','/');

    manually enter 2 backward slashes \ .These were removed while converting to HTML page.

     

     

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  9. zipping a directory[ Go to top ]

    Hi..in the code it shows to zip a single folder..but if we want to zip a entire directory which contains many sub folders and sub folders then????i have the code for it in java..but i want in android ....can any one help me???
    Reply to this Reply to original

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