How to rename key in JSONObject using java?

Question

I want to rename the keys of a JSON object using Java.

My input JSON is:

{  
    "serviceCentreLon":73.003742,
    "type":"servicecentre",
    "serviceCentreLat":19.121737,
    "clientId":"NMMC01" 
}

I want to change it to:

{  
    "longitude":73.003742,
    "type":"servicecentre",
    "latitude":19.121737,
    "clientId":"NMMC01" 
}

i.e. I want to rename "serviceCentreLon" to "longitude" and "serviceCentreLat" to "latitude". I am using the JSONObject type in my code.

Answer 1

Assuming you're using the json.org library: once you have a JSONObject, why not just do this?

obj.put("longitude", obj.get("serviceCentreLon"));
obj.remove("serviceCentreLon");
obj.put("latitude", obj.get("serviceCentreLat"));
obj.remove("serviceCentreLat");

You could create a rename method that does this (then call it twice), but that's probably overkill if these are the only fields you're renaming.