Change field case with an ObjectMapper

Question

I think I need to create a specialist ObjectMapper and cannot find any sample code to start the process.

The creator of the JSON is using .Net

Answer 1

This problem could be solved from Jackson 2.5.0 like this:

ObjectMapper mapper = new ObjectMapper();
mapper.configure(MapperFeature.ACCEPT_CASE_INSENSITIVE_PROPERTIES, true);

From the javadoc:

com.fasterxml.jackson.databind.MapperFeature.ACCEPT_CASE_INSENSITIVE_PROPERTIES

Feature that will allow for more forgiving deserialization of incoming JSON. If enabled, the bean properties will be matched using their lower-case equivalents, meaning that any case-combination (incoming and matching names are canonicalized by lower-casing) should work.

Note that there is additional performance overhead since incoming property names need to be lower-cased before comparison, for cases where there are upper-case letters. Overhead for names that are already lower-case should be negligible however.

Feature is disabled by default.

Since: 2.5