JSON to Java class

Question

Is there an easy way to map data from JSON to fields of my class by means of android APIs?

JSON:

{ email: 'email', password: 'pass' }

My class:

class Credentials
{
    string email;
    string password;
}

Answer 1

Use Jackson. Much more convenient (and if performance matters, faster) than using bundled org.json classes and custom code:

Credentials c = new ObjectMapper().readValue(jsonString, Credentials.class);

(just note that fields of Credentials need to be 'public' to be discovered; or need to have setter methods)

Answer 2

You could use GSON.

Answer 3

Use the org.json-Package.

JSONObject x = new JSONObject(jsonString);
Credentials c = new Credentials();
c.email = x.getString("email");
c.password = x.getString("password");

Its also part of the android runtime, so you dont need any external package.