替换绝对路径为空
String str = new ActionEnter(request, buffer.toString(), "config.json").exec();
String action = request.getParameter("action");
String rootPath =buffer.toString();
if( action!=null && (action.equals("listfile") || action.equals("listimage") ) ){
rootPath = rootPath.replace("\\", "/");
rootPath = rootPath.replace("//", "/");
str = str.replaceAll(rootPath, "");
}
JSONObject json =JSONObject.parseObject(str);