How to convert a String to JsonObject using gson library

Question

Please advice how to convert a String to JsonObject using gson library.

What I unsuccesfully do:

String string = "abcde"; Gson gson = new Gson(); JsonObject json = new JsonObject(); json = gson.toJson(string); // Can't convert String to JsonObject 

Answer 1

You can convert it to a JavaBean if you want using:

 Gson gson = new GsonBuilder().setPrettyPrinting().create();  gson.fromJson(jsonString, JavaBean.class) 

To use JsonObject, which is more flexible, use the following:

String json = "{\"Success\":true,\"Message\":\"Invalid access token.\"}"; JsonParser jsonParser = new JsonParser(); JsonObject jo = (JsonObject)jsonParser.parse(json); Assert.assertNotNull(jo); Assert.assertTrue(jo.get("Success").getAsString()); 

Which is equivalent to the following:

JsonElement jelem = gson.fromJson(json, JsonElement.class); JsonObject jobj = jelem.getAsJsonObject(); 

Answer 2

To do it in a simpler way, consider below:

JsonObject jsonObject = (new JsonParser()).parse(json).getAsJsonObject();