list<Person> to Json Gson

Gson gson = new Gson();
List<Person> persons = new ArrayList<Person>();
for (int i = 0; i < 10; i++) {
     Person p = new Person();
     p.setName("name" + i);
     p.setAge(i * 5);
     persons.add(p);
}
String jsonStr = gson.toJson(persons);

 

HashMap map = new Gson().fromJson(jsonStr , HashMap.class);

Map<String,Object> map = new Gson().fromJson(returnMsg, new TypeToken<HashMap<String,Object>>(){}.getType());

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