获取工程路径(jar和普通文件结构通用) -- java

    /**
     * 获取工程所在目录
     * @return
     * @throws UnsupportedEncodingException
     */
    private static String getProjectPath() throws UnsupportedEncodingException{
        URL url = UpdateHook.class.getProtectionDomain().getCodeSource().getLocation();
        String filePath = URLDecoder.decode(url.getPath(), "UTF-8");
        if(filePath.endsWith(".jar"))
            filePath = filePath.substring(0, filePath.lastIndexOf("/") + 1);
        return filePath;
    }