how to parse a JSON string into ObjectNode in Jackson?

Question

First of all could anyone explain to me What are differences between ObjectNode and JsonNode, and where they used?

Then if I want to convert a JSON string into ObjectNode what can I do?

http://fasterxml.github.io/jackson-databind/javadoc/2.2.0/com/fasterxml/jackson/databind/JsonNode.html — Sotirios Delimanolis, Jul 27 '14 at 06:56
possible duplicate of [how to parse a JSON string into JsonNode in Jackson?](http://stackoverflow.com/questions/3653996/how-to-parse-a-json-string-into-jsonnode-in-jackson) — Deepanshu J bedi, Jul 27 '14 at 07:10
I read that before but method mapper.readTree() return JsonNode not ObjectNode and I couldn't get ObjectNode from mapper. — littleali, Jul 27 '14 at 07:16

Arian Kiehr · Accepted Answer · 2015-05-16T02:52:30.627

-1

You can do:

ObjectMapper mapper = new ObjectMapper();
JsonNode actualObj = mapper.valueToTree("{\"k1\":\"v1\"}")

JsonNode it is a super class of ObjectNode.

You can find the differences in the API.

edited May 16 '15 at 02:52

answered Jul 27 '14 at 07:12

Arian Kiehr

getJsonFactory() and createJsonParser() is deprecated. Can I do this without deprecated functions? – littleali Jul 27 '14 at 07:21
6

I found the answer, I write it in this way and then cast JsonNode to ObjectNode: `ObjectMapper mapper = new ObjectMapper(); JsonNode actualObj = mapper.readTree(jsonString);` – littleali Jul 27 '14 at 07:28

1 Answers1