/**

     * delete file

     * 删除文件

     * @param fileName

     * @return

     */

    private boolean deleteDir(String fileName)

    {

        boolean flag = false;

        File file = new File(fileName);

        if(file.exists()){

            flag = delFile(file);

        }

        return flag;

    }

        /**

         * delete file

         * 删除文件

         * @param fileName

         * @return

         */

        private boolean delFile(File file) {

            if (!file.exists()) {

                return false;

            }

            if (file.isDirectory()) {

                File[] files = file.listFiles();

                for (File f : files) {

                    delFile(f);

                }

            }

            return file.delete();

        }

/**

         * 获取路径

         * @return

         */

        public String getWebRoot()

        {

            String realUrl = getClass().getProtectionDomain().getCodeSource()

                    .getLocation().getPath();

            String newUrl = "";

            if (realUrl.contains("/WEB-INF/"))

            {

                newUrl = realUrl.substring(, realUrl.lastIndexOf("WEB-INF/"));

            }

            realUrl = newUrl.replace("%20", " ");//此路径不兼容jboss

            return realUrl;

        }