public static List unzip(FormFile formFile) {
        if (formFile == null)
            return null;
        List list = null;
        InputStream in = null;
        ZipInputStream zipInput = null;
        try {
            in = formFile.getInputStream();
            zipInput = new ZipInputStream(in);
            ZipEntry zipEntry = null;
            list = new ArrayList();
            while ((zipEntry = zipInput.getNextEntry()) != null) {
                if (!zipEntry.isDirectory()) {
                    FileBean fb = new FileBean();
                    int len = new Long(zipEntry.getSize()).intValue();
                    byte[] data = new byte[len];
                    int actual = 0;
                    int bytesread = 0;
                    while ((bytesread != len) && (actual != -1)) {
                        actual = zipInput
                                .read(data, bytesread, len - bytesread);
                        bytesread += actual;
                    }

                    fb.setFileSize(len);
                    fb.setFileName(zipEntry.getName());
                    fb.setFileType(zipEntry.getName().substring(
                            zipEntry.getName().lastIndexOf(".") + 1));
                    fb.setContents(data);
                    fb.setUploadDate(DateTimeUtil.getToDate());
                    fb.setUploadTime(DateTimeUtil.getToSecond());
                    list.add(fb);
                }
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (zipInput != null) {
                    zipInput.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (Exception ex) {
            }
        }
        return list;
    }