CODEWITHSUNDEEP
androidjsongson
David
David

Reputation: 3804

Android: parsing json with 'null' values using Gson

I got the following request from an Android developer:

Would you change the webservice back-end so that it returnes empty strings for empty fields instead of null.

The Android json parser converts null to a string containing "null".

The code:

import com.google.gson.Gson;
//...
private OrganizationSearchResult result;
//...
Gson gson = new Gson();
result = gson.fromJson(resultString, OrganizationSearchResult.class);

Is this a known issue?

If so, is there a known work-around for it?

Upvotes: 1

Views: 2269

Answers (2)

Ravitheja
Ravitheja

Reputation: 5

there will be a method isNull(key) in jsonObject to Determine if the value associated with the key is null or if there is no value, check with this and then call getString(key).

Upvotes: 0

Josnidhin
Josnidhin

Reputation: 12504

I dont know what you are using for parsing the json and the JSONObject class in android sdk doesnt do that.

Take a look at the following class

http://developer.android.com/reference/org/json/JSONObject.html

Check out has and isNULL of the above method.

I think GSON automatically handles the null in json by converting them to java null.

Upvotes: 2

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