How can I use GSON to parse and place into a list of objects?

Question

I have a domain object Foo, and I want to parse some JSON such as

[
    {"prop": "val"},
    {"prop": "val2"},
]

I want to get a List<Foo>. Something like this

List<Foo> foos = new Gson().fromJson(json, /*what goes here ?*/);

Answer 1

You need to use a TypeToken to correctly express the type. Class is not sufficient in this case, because of the interaction with the generic type.

Type listType = new TypeToken<List<Foo>>(){}.getType();
List<Foo> projects = (List<Foo>) gson.fromJson(response, listType);