后台将资源文件读取后放到servletContext域中，在前端怎么遍历？

ResourceBundle resourceBundle = ResourceBundle.getBundle("mybatis.Stage2Possibility");
Enumeration  <String> bundleKeys = resourceBundle.getKeys();
TreeMap<String, String> stage2Possibility = new TreeMap<>();
while (bundleKeys.hasMoreElements()) {
       String key = bundleKeys.nextElement();
       String value = resourceBundle.getString(key);
       stage2Possibility.put(key, value);
}
servletContext.setAttribute("Stage2Possibility", stage2Possibility);

${Stage2Possibility}取出后是 {key=value，key=value,} 的形式，无法用遍历Object和map的方式进行遍历。

前端用得是 jsp？