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javajsonserializationjacksonjackson-databind

Serialize object as Map instead of String using Jackson databind?

Normally one does something like this when you want to serialize an object to a JSON string:

String json = objectMapper.writeValueAsString(myObject);

I wonder if it's possible to serialize an object directly into a java.util.Map instead of a String? I.e. something like this (pseudo code):

String json = objectMapper.writeValueAs(myObject, new TypeReference<Map<String,Object>>() {});

I know I can serialize the object to a String first and then deserialize it as a Map<String,Object> but I'm asking if there's is a way to do this without first serializing to a String?

I'm using Jackson 2.11.1.

Solution

  • You can use convertValue method of ObjectMapper to convert Object into Map

    Map<String, Object> map = objectMapper.convertValue(myObject, Map.class);