得到关键名称&来自json的关键价值 [英] get key name & key value from json

问题描述

我对java很新。我如何获得关键名称&这个jsonobject&的关键价值将它传递给我的增量方法？

I'm totally new to java. How do I get the key name & key value of this jsonobject & pass it to my increment method?

args = {'property_name':1}


private boolean handlePeopleIncrement(JSONArray args, final CallbackContext cbCtx) {

    JSONObject json_array = args.optJSONObject(0);

    mixpanel.getPeople().increment(key_name, key_value);
    cbCtx.success();
    return true;
}

更新

现在我收到错误：

Object cannot be converted to Number  
Number value = json_array.get(key);

-

private boolean handlePeopleIncrement(JSONArray args, final CallbackContext cbCtx) {
     JSONObject json_array = args.optJSONObject(0);

    Iterator<?> keys = json_array.keys();

    while( keys.hasNext() ) {
        String key = (String) keys.next();
        Number value = json_array.get(key);
       // System.out.println("Key: " + key);
       // System.out.println("Value: " + json_array.get(key));
    }

    mixpanel.getPeople().increment(key, value);
    cbCtx.success();
    return true;
}

推荐答案

尝试使用此

JSONObject json_array = args.optJSONObject(0);

Iterator<?> keys = json_array.keys();

while( keys.hasNext() ) {
    String key = (String) keys.next();
    System.out.println("Key: " + key);
    System.out.println("Value: " + json_array.get(key));
}

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