Re: ZipOutputStream

From:
Erik <et57@hotmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 26 Jan 2010 10:24:46 +0100
Message-ID:
<tuctl59ololbt2dg4ke6bfl18uevbfo4qa@4ax.com>
problem solved. This is how it must be done:

 public void create(ArrayList<FileItem> list,String path, String
fileName) {

        // Create a buffer for reading the files
        byte[] buf = new byte[1024];
        System.out.print("Create " + fileName + ": ");
        try {

            ZipOutputStream out = new ZipOutputStream(new
FileOutputStream(path + fileName));
            out.setMethod(ZipOutputStream.DEFLATED); // file mimetype
must be uncompressed
            out.setLevel(Deflater.DEFAULT_COMPRESSION);
            // Compress the files
            for (FileItem fi : list) {
                String fn = fi.dir + fi.fileName;

                FileInputStream in = new
FileInputStream(root.getPath() + "\\" + fn);

                // Add ZIP entry to output stream.
                ZipEntry z = new ZipEntry(fn);
                if (fn.equals("mimetype")) {

                    z.setMethod(ZipOutputStream.STORED); // file
mimetype must be uncompressed
// These three MUST be set. However, I think they may be set to
anything...
                    z.setSize(20); // length of data
                    z.setCompressedSize(20);
                    z.setCrc(0x2cab616f);
                }
                else {
                    z.setMethod(ZipOutputStream.DEFLATED);
                }

                out.putNextEntry(z);

                // Transfer bytes from the file to the ZIP file
                int len;
                while ((len = in.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }

                // Complete the entry
                out.closeEntry();
                in.close();
                
            }

            // Complete the ZIP file
            out.close();
            System.out.println("OK.");
        }
        catch (IOException e) {
            System.out.println(e.getMessage());
        }
    }

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