Java JSONObject与Map互相转换

private Map<String, String>  options = new HashMap<String, String>();


private void parseOptions(JSONObject json) throws JSONException {
    Iterator<String> iter = json.keys();
    while (iter.hasNext()) {
        String key = iter.next();
        options.put(key, json.getString(key));
    }
}

private JSONObject optionsToJSON() throws JSONException {
    JSONObject json = new JSONObject();
    Iterator<String> iter = options.keySet().iterator();
    while (iter.hasNext()) {
        String key = iter.next();
        json.put(key, options.get(key));
    }
    return json;
}