Android文件压缩和解压(8)

     * @throws IOException
     *             当压缩过程出错时抛出
     */ 
    private static void zipFile(File resFile, ZipOutputStream zipout, String rootpath) throws FileNotFoundException, IOException { 
        rootpath = rootpath + (rootpath.trim().length() == 0 ? "" : File.separator) + resFile.getName(); 
        rootpath = new String(rootpath.getBytes("8859_1"), HTTP.UTF_8); 
        BufferedInputStream in = null; 
        try { 
            if (resFile.isDirectory()) { 
                File[] fileList = resFile.listFiles(); 
                for (File file : fileList) { 
                    zipFile(file, zipout, rootpath); 
                } 
            } else { 
                byte buffer[] = new byte[BUFF_SIZE]; 
                in = new BufferedInputStream(new FileInputStream(resFile), BUFF_SIZE); 
                zipout.putNextEntry(new ZipEntry(rootpath)); 
                int realLength; 
                while ((realLength = in.read(buffer)) != -1) { 
                    zipout.write(buffer, 0, realLength); 
                } 
                in.close(); 
                zipout.flush(); 
                zipout.closeEntry(); 
            } 
        } finally {