How to convert Json to Java object using Gson

Question

Suppose I have a json string

{"userId":"1","userName":"Yasir"} 

I now have a User class

 class User{ int userId; String userName; //setters and getters } 

Now How to convert above json string to user class object

Answer 1

Try the following:

 Gson gson = new Gson(); String jsonInString = "{\"userId\":\"1\",\"userName\":\"Yasir\"}"; User user= gson.fromJson(jsonInString, User.class); 

Answer 2

 User user= gson.fromJson(jsonInString, User.class); // where jsonInString is your json {"userId":"1","userName":"Yasir"} 

Answer 3

 Gson gson = new Gson(); User u=gson.fromJson(jsonstring, User.class); System.out.println("userName: "+u.getusername); 

Answer 4

 Gson gson = new Gson(); User user = gson.fromJson("{\"userId\":\"1\",\"userName\":\"Yasir\"}", User.class));