How to parse a JSON string into JsonNode in Jackson? How to parse a JSON string into JsonNode in Jackson? json json

How to parse a JSON string into JsonNode in Jackson?


java json parsing jackson

A slight variation on Richards answer but readTree can take a string so you can simplify it to:

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

java json parsing jackson

You need to use an ObjectMapper:

ObjectMapper mapper = new ObjectMapper();JsonFactory factory = mapper.getJsonFactory(); // since 2.1 use mapper.getFactory() insteadJsonParser jp = factory.createJsonParser("{\"k1\":\"v1\"}");JsonNode actualObj = mapper.readTree(jp);

Further documentation about creating parsers can be found here.

java json parsing jackson

A third variant:

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

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