org.json.JSONObject : Rename Nested and Listed JSON Keys in Java

Question

I am trying to rename key names in a json object.I can rename at the top level, but unable to rename if the key present inside another object or if it present in a List Object.

This is what i have tried so far.

         try {
                jsonObject.put(value, jsonObject.remove(key));
                LOG.trace("Renaming Field {} with Field {}", key, value);
            } catch (JSONException e) {
                throw new RuntimeException(e);
            }

Here is an Example Object.

 {
      "id": 123,
      "contactInformation": {
        "contact": {
          "email": "[email protected]",
        }
      },
      "supportingCustomer": [
        {
          "supportingCustomerName": "JOHN"
        },
        {
          "supportingCustomerName": "JOHN"
        }

      ]

}

Here I can rename Id, but having difficulty renaming supportingCustomerName and also contactInformation.contact.email using org.json.JSONObject ? Or is there any other library, i can use to rename keys.Any Help would be appreciated?

My JSON And key are dynamic not fixated.

@AliasCartellano I can rename high level fields.But How Can i Do it for nested and keys inside List? — Rocky4Ever
– Rocky4Ever, Commented Jul 6, 2022 at 17:23
You can replace keys using str = str.replace("supportingCustomerName","Example"); System.out.println(str); on the string of the jsonObject. — Alias Cartellano
– Alias Cartellano, Commented Jul 6, 2022 at 17:36
What if the another nested object have same name and i don't want to replace that field?Which will not be idea.I would like to only change key which is referred by the client — Rocky4Ever
– Rocky4Ever, Commented Jul 6, 2022 at 17:38
Try iterating through the JSON and renaming the keys that match the values to change. — Alias Cartellano
– Alias Cartellano, Commented Jul 6, 2022 at 17:48

Rocky4Ever · Accepted Answer · 2022-07-13 03:34:06Z

0

Finally Ended Up using

 implementation group: 'com.jayway.jsonpath', name: 'json-path', version: '2.7.0' 


@Override
public DocumentContext renameKey(JsonPath path, String oldKeyName, String newKeyName) {
  List<String> modified =  path.renameKey(json, oldKeyName, newKeyName, configuration.addOptions(Option.AS_PATH_LIST));
  if(logger.isDebugEnabled()){
    for (String p : modified) {
      logger.debug("Rename path {} new value {}", p, newKeyName);
    }
  }
  return this;
}

answered Jul 13, 2022 at 3:34

Rocky4Ever

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2 Comments

user448477 Over a year ago

Can you explain this function please?

Rocky4Ever Over a year ago

Basically you convert json to jsonpath ,get the path and rename the keys in position based. For example $ is your root, and $.id is first id and $contactInformation. contact is another path like that.

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