Low-Level JSON Parsing With Jackson

Jackson is primary used for mapping Java classes to JSON objects. However, there are times where you need to retrieve the raw text content of a specific JSON node rather than to map the entire document to a class.

This can be done with the following code:

ObjectMapper mapper = new ObjectMapper(); JsonFactory factory = mapper.getJsonFactory(); JsonParser jp = factory.createJsonParser(jsonString); JsonNode node = mapper.readTree(jp); JsonNode node1 = node.get(“key1”); JsonNode node2 = node2.get("key2"); String node2Content = node2.asText();

References:

• http://stackoverflow.com/questions/3653996/how-to-parse-a-json-string-into-jsonnode-in-jackson