Jsonpath with Jackson or Gson

Question

I am getting a big json document and i want to parse only some part of it to my java classes. I was thinking to use something like jsonpath to extract partial data from it i

Answer 1

String json = "{\"firstName\":\"John\",\"lastName\":\"Doe\",\"address\":{\"street\":"
            + "\"21 2nd Street\",\"city\":\"New York\",\"postalCode\":\"10021-3100\","
            + "\"coordinates\":{\"latitude\":40.7250387,\"longitude\":-73.9932568}}}";

ObjectMapper mapper = new ObjectMapper();
JsonNode node = mapper.readTree(json);
JsonNode coordinatesNode = node.at("/address/coordinates");

This is a JSON Pointer approach which I found here: https://cassiomolin.com/2016/07/13/using-jackson-and-json-pointer-to-query-and-parse-an-arbitrary-json-node/