java - Gson. Deserialize integers as integers and not as doubles

Question

I have json object with arbitary values inside. And I want to deserialize it in a Map. Everything is ok except converting integers to a doubles. See example:

{"id":1, "inner_obj":{"key":"value","num":666,"map":{"key":"value"}}}

deserializes to this(map.toString()):

{id=1.0, inner_obj={key=value, num=666.0, map={key=value}}}

Is there some easy way to deserialize "id" and "num" as Integers and not as Doubles?

Answer 1

There are no integer type in JSON. 1 and 1.0 are the same. You need to parse that 1.0 to 1 in your code. Or you need to map the JSON to some VO class and define the type of fields of the class explicitly , so that GSON can understand what you are looking for.