What is @JsonCreator in Java?

Unlike Gson, Jackson will require getters for all private fields, otherwise serialization and deserialization won’t work. Jackson requires Java SE 1.5 or more, so we can’t use it on legacy projects.

Serialize a Map of <String,String> key-values Jackson serializes a Map as a JSON object whose keys are the keys’ toString() representation (in this case it’s the value itself). The Map values are serialized using the default serializers unless you override them.

Serialize a Map of <String,String> key-values Jackson serializes a Map as a JSON object whose keys are the keys’ toString() representation (in this case it’s the value itself). The Map values are serialized using the default serializers unless you override them.

github.com/FasterXML/jackson. In computing, Jackson is a high-performance JSON processor for Java . Its developers extol the combination of fast, correct, lightweight, and ergonomic attributes of the library.

github.com/FasterXML/jackson. In computing, Jackson is a high-performance JSON processor for Java . Its developers extol the combination of fast, correct, lightweight, and ergonomic attributes of the library.

Unlike Gson, Jackson will require getters for all private fields, otherwise serialization and deserialization won’t work. Jackson requires Java SE 1.5 or more, so we can’t use it on legacy projects.

ObjectMapper is the main actor class of Jackson library. ObjectMapper class ObjectMapper provides functionality for reading and writing JSON, either to and from basic POJOs (Plain Old Java Objects) , or to and from a general-purpose JSON Tree Model (JsonNode), as well as related functionality for performing conversions.