How to convert list data into json in java

Question

I have a function which is returning Data as List in java class. Now as per my need, I have to convert it into Json Format.

Below is my fun

Answer 1

Using gson it is much simpler. Use following code snippet:

 // create a new Gson instance
 Gson gson = new Gson();
 // convert your list to json
 String jsonCartList = gson.toJson(cartList);
 // print your generated json
 System.out.println("jsonCartList: " + jsonCartList);

Converting back from JSON string to your Java object

 // Converts JSON string into a List of Product object
 Type type = new TypeToken>(){}.getType();
 List prodList = gson.fromJson(jsonCartList, type);

 // print your List
 System.out.println("prodList: " + prodList);