Пример #1
0
 public static boolean download(
     URL url, String file, int prefix, int totalFilesize, IProgressUpdater updater) {
   File fFile = new File(new File(file).getParentFile().getPath());
   if (!fFile.exists()) fFile.mkdirs();
   boolean downloaded = true;
   BufferedInputStream in = null;
   FileOutputStream out = null;
   BufferedOutputStream bout = null;
   try {
     int count;
     int totalCount = 0;
     byte data[] = new byte[BUFFER];
     in = new BufferedInputStream(url.openStream());
     out = new FileOutputStream(file);
     bout = new BufferedOutputStream(out);
     while ((count = in.read(data, 0, BUFFER)) != -1) {
       bout.write(data, 0, count);
       totalCount += count;
       if (updater != null) updater.update(prefix + totalCount, totalFilesize);
     }
   } catch (Exception e) {
     e.printStackTrace();
     Utils.logger.log(Level.SEVERE, "Download error!");
     downloaded = false;
   } finally {
     try {
       close(in);
       close(bout);
       close(out);
     } catch (Exception e) {
       e.printStackTrace();
     }
   }
   return downloaded;
 }
Пример #2
0
  public static void extract(String zipFile, String newPath, boolean overwrite)
      throws ZipException, IOException {
    File file = new File(zipFile);

    ZipFile zip = new ZipFile(file);

    new File(newPath).mkdir();
    Enumeration<? extends ZipEntry> zipFileEntries = zip.entries();

    // Process each entry
    while (zipFileEntries.hasMoreElements()) {
      // grab a zip file entry
      ZipEntry entry = (ZipEntry) zipFileEntries.nextElement();
      String currentEntry = entry.getName();
      File destFile = new File(newPath, currentEntry);
      // destFile = new File(newPath, destFile.getName());
      File destinationParent = destFile.getParentFile();

      // create the parent directory structure if needed
      destinationParent.mkdirs();

      if (!entry.isDirectory()) {
        if (!overwrite && destFile.exists()) continue;
        BufferedInputStream is = new BufferedInputStream(zip.getInputStream(entry));
        int currentByte;
        // establish buffer for writing file
        byte data[] = new byte[BUFFER];

        // write the current file to disk
        FileOutputStream fos = new FileOutputStream(destFile);
        BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER);

        // read and write until last byte is encountered
        while ((currentByte = is.read(data, 0, BUFFER)) != -1) {
          dest.write(data, 0, currentByte);
        }
        close(dest);
        close(is);
      }
    }
  }